CN105212958B - Preparation method, device and the equipment of CT images - Google Patents
Preparation method, device and the equipment of CT images Download PDFInfo
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- CN105212958B CN105212958B CN201510694658.1A CN201510694658A CN105212958B CN 105212958 B CN105212958 B CN 105212958B CN 201510694658 A CN201510694658 A CN 201510694658A CN 105212958 B CN105212958 B CN 105212958B
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Abstract
This application discloses the preparation method of CT images, device and equipment, this method is applied on Medical Devices, and Medical Devices include at least two bulbs and at least two detectors corresponding at least two bulbs, this method include：Determine the unwrapping wire time interval of the first bulb at least two bulbs；In the unwrapping wire time interval, X-ray can be sent out by controlling first bulb；Other time section except the unwrapping wire time interval, X-ray can not be sent out by controlling first bulb；Corresponding first detector of the first bulb collected data in unwrapping wire time interval are obtained, and collected data obtain CT images in unwrapping wire time interval using the first detector.Technical solution through the invention avoids the scattered rays of a bulb from being irradiated on the corresponding detector of another bulb, and the problems such as avoid the formation of projection error.
Description
Technical field
This application involves the preparation method of technical field of medical equipment more particularly to CT images, device and equipment.
Background technology
For the Medical Devices of medical imaging class, such as CT (sweep by Computed Tomography, electronic computer tomography
Retouch) in equipment, in order to improve sweep speed, multiple bulbs and correspondence may be installed in the different angle of its scanning support
Multiple detectors, each bulb corresponds to a detector.In the rotary course of scanning support, multiple bulbs can be simultaneously emitted by X
Ray, and received by the corresponding detector of bulb., can be interior at the same time using this technology, it doubles up X and penetrates
The angle of coverage range of line projection, so as to obtain the required data of CT image reconstructions within the extremely short time, for fortune
The imaging of animal body (such as heart etc.) has prodigious advantage.
But under aforesaid way, when multiple bulbs are simultaneously emitted by X-ray, the x-ray bombardment that a bulb is sent out is arrived
Body surface can scatter, and scattered rays can be irradiated on the corresponding detector of another bulb, be corresponded in another bulb
Detector on form projection error, lead to CT image artifacts or uneven.For example, 1 corresponding detector 1 of bulb is receiving
While the X-ray sent out to bulb 1, scattering caused by the X-ray that other bulbs (such as bulb 2) are sent out can be also received
Line, to form projection error.
Invention content
The present invention proposes a kind of preparation method of CT scan CT images, and this method, which is applied, is passing through scanning
Mode obtains on the Medical Devices of CT images, the Medical Devices include at least two bulbs and at least two bulb
Corresponding at least two detector, the described method comprises the following steps：
Determine the unwrapping wire time interval of the first bulb at least two bulb；
In the unwrapping wire time interval, X-ray can be sent out by controlling first bulb；The unwrapping wire time interval it
Outer other time section, X-ray can not be sent out by controlling first bulb；
Obtain corresponding first detector of first bulb collected data in the unwrapping wire time interval, and profit
With first detector, collected data obtain CT images in the unwrapping wire time interval.
Time of coincidence section is not present with the unwrapping wire time interval of other bulbs in the unwrapping wire time interval of each first bulb,
Alternatively, the time of coincidence section between the unwrapping wire time interval of each first bulb and the unwrapping wire time interval of other bulbs is less than
Predetermined threshold value.
The process of the unwrapping wire time interval of the first bulb in determination at least two bulb, specifically includes：Really
The unwrapping wire time interval of first bulb is calmly：[(k*N+m) * t, (k*N+m+1) * t)；
Wherein, N is the quantity of at least two bulb；M is the index of first bulb, and the value of m is 0,
A numerical value in 1 ..., N-2, N-1；T is the time interval of each unwrapping wire；K is the unwrapping wire number of first bulb, and k
Value be followed successively by 0,1 ..., K, K be the first bulb maximum unwrapping wire number.
It is described in the unwrapping wire time interval, X-ray can be sent out by controlling first bulb；In the unwrapping wire time zone
Between except other time section, the process of X-ray can not be sent out by controlling first bulb, be specifically included：It is put described
Line time interval, the output valve for controlling the corresponding grid voltage of first bulb are the first voltage value；In the unwrapping wire time
Other time section except section, the output valve for controlling the corresponding grid voltage of first bulb are second voltage value；Its
In, when the output valve of grid voltage is the first voltage value, first bulb can send out X-ray；It is defeated when grid voltage
Go out value be second voltage value when, first bulb can not send out X-ray；The second voltage value is more than the first voltage
Value；Alternatively,
In the unwrapping wire time interval, controls first bulb corresponding bulb high pressure and electricity is exported to first bulb
Pressure；Other time section except the unwrapping wire time interval controls the corresponding bulb high pressure of first bulb not to institute
State the first bulb output voltage；It is described when the corresponding bulb high pressure of first bulb is to the first bulb output voltage
First bulb can send out X-ray；When the corresponding bulb high pressure of first bulb is not to the first bulb output voltage,
First bulb can not send out X-ray.
The output valve for controlling the corresponding grid voltage of first bulb is the process of the first voltage value, specific to wrap
It includes：The first signal is exported to the control circuit of the corresponding grid voltage of first bulb, first signal is described for making
The control circuit of the corresponding grid voltage of first bulb exports the first voltage value；
The output valve for controlling the corresponding grid voltage of first bulb is the process of second voltage value, specific to wrap
It includes：Second signal is exported to the control circuit of the corresponding grid voltage of first bulb, the second signal is described for making
The control circuit of the corresponding grid voltage of first bulb exports second voltage value.
The Medical Devices only provide a bulb high pressure, and each bulb at least two bulb correspond to it is same
A bulb high pressure.
It is described to obtain the corresponding first detector collected data in the unwrapping wire time interval of first bulb
Process, specifically include：
First detector collected data in all unwrapping wire time intervals are obtained, from collected all data
In, extract first detector collected data in the unwrapping wire time interval；Alternatively,
In the unwrapping wire time interval, controls first detector and carry out data acquisition；In the unwrapping wire time interval
Except other time section, control first detector and acquired without data；First detector is obtained to collect
All data be in the unwrapping wire time interval collected data.
Control first detector carries out the process of data acquisition, specifically includes：It is defeated to first detector
Go out third signal, the third signal is for making first detector carry out data acquisition；
The process that control first detector is acquired without data, specifically includes：To first detector
Fourth signal is exported, the fourth signal is for making first detector be acquired without data.
The present invention proposes that a kind of acquisition device of CT scan CT images, described device are applied by sweeping
The mode of retouching obtains on the Medical Devices of CT images, the Medical Devices include at least two bulbs and at least two ball
Corresponding at least two detector is managed, described device specifically includes：
Determining module, the unwrapping wire time interval for determining the first bulb at least two bulb；Control module,
For in the unwrapping wire time interval, X-ray can be sent out by controlling first bulb；Except the unwrapping wire time interval
Other time section, X-ray can not be sent out by controlling first bulb；
Module is obtained, is acquired in the unwrapping wire time interval for obtaining corresponding first detector of first bulb
The data arrived, and collected data obtain in the unwrapping wire time interval using corresponding first detector of first bulb
Obtain CT images.
Time of coincidence section is not present with the unwrapping wire time interval of other bulbs in the unwrapping wire time interval of each first bulb,
Alternatively, the time of coincidence section between the unwrapping wire time interval of each first bulb and the unwrapping wire time interval of other bulbs is less than
Predetermined threshold value.
The determining module, the unwrapping wire time interval specifically for determination first bulb are：[(k*N+m) * t, (k*N
+m+1)*t)；Wherein, N is the quantity of at least two bulbs；M is the index of the first bulb, and the value of m is 0,1 ..., N-2,
A numerical value in N-1；T is the time interval of each unwrapping wire；K is the unwrapping wire number of the first bulb, and the value of k is followed successively by 0,
The first bulb of 1 ..., K, K is maximum unwrapping wire number.
The control module is specifically used for, in the unwrapping wire time interval, controlling the corresponding grid electricity of first bulb
The output valve of pressure is the first voltage value；Other time section except the unwrapping wire time interval controls first bulb
The output valve of corresponding grid voltage is second voltage value；Wherein, described when the output valve of grid voltage is the first voltage value
First bulb can send out X-ray；When the output valve of grid voltage is second voltage value, first bulb can not be sent out
X-ray；The second voltage value is more than the first voltage value；Alternatively, in the unwrapping wire time interval, first ball is controlled
Corresponding bulb high pressure is managed to the first bulb output voltage；Other time section except the unwrapping wire time interval,
The corresponding bulb high pressure of first bulb is controlled not to the first bulb output voltage；In the corresponding ball of first bulb
When pipe high pressure is to the first bulb output voltage, first bulb can send out X-ray；It is corresponding in first bulb
When bulb high pressure is not to the first bulb output voltage, first bulb can not send out X-ray.
The control module is specifically used in the output valve for controlling the corresponding grid voltage of first bulb being the first electricity
During pressure value, the first signal is exported to the control circuit of the corresponding grid voltage of first bulb, wherein described first
Signal is used to make the control circuit of the corresponding grid voltage of first bulb to export the first voltage value；Controlling first ball
During the output valve of corresponding grid voltage is managed as second voltage value, the control to the corresponding grid voltage of first bulb
Circuit output second signal processed, wherein the second signal is used to make the control electricity of the corresponding grid voltage of first bulb
Road exports second voltage value.
The Medical Devices only provide a bulb high pressure, and each bulb at least two bulb correspond to it is same
A bulb high pressure.
The acquisition module is specifically used for obtaining corresponding first detector of first bulb in the unwrapping wire time
In section during collected data, the first detector collected number in all unwrapping wire time intervals is obtained
According to, and from collected all data in all unwrapping wire time intervals, first detector is extracted in the unwrapping wire
Collected data in time interval；Alternatively,
In the unwrapping wire time interval, controls first detector and carry out data acquisition；In the unwrapping wire time interval
Except other time section, control first detector and acquired without data；First detector is obtained to collect
All data be in the unwrapping wire time interval collected data.
The acquisition module is specifically used for during controlling first detector and carrying out data acquisition, to described
First detector exports third signal, and the third signal is for making first detector carry out data acquisition；In control institute
During the first detector is stated without data acquisition, fourth signal, the fourth signal are exported to first detector
For making first detector be acquired without data.
The present invention proposes a kind of Medical Devices obtaining CT scan CT images by scan mode, described
Medical Devices specifically include：Console, scanning support, at least two bulbs and corresponding at least two bulb at least two
A detector；Wherein, the console specifically includes：Processor and can for storing that the acquisition device of CT images is corresponding
The memory executed instruction；Wherein, the corresponding executable instruction of acquisition device that the processor passes through the reading CT images
And it is used to execute：
Determine the unwrapping wire time interval of the first bulb at least two bulb；
In the unwrapping wire time interval, X-ray can be sent out by controlling first bulb；The unwrapping wire time interval it
Outer other time section, X-ray can not be sent out by controlling first bulb；
Obtain corresponding first detector of first bulb collected data in the unwrapping wire time interval, and profit
With first detector, collected data obtain CT images in the unwrapping wire time interval.
The processor is by reading the corresponding executable instructions of acquisition device of the CT images, in the unwrapping wire time
Section, X-ray can be sent out by controlling first bulb；Other time section except the unwrapping wire time interval, control
When first bulb can not send out X-ray, including：
In the unwrapping wire time interval, the output valve for controlling the corresponding grid voltage of first bulb is first voltage
Value；Other time section except the unwrapping wire time interval controls the output of the corresponding grid voltage of first bulb
Value is second voltage value；Wherein, when the output valve of grid voltage is the first voltage value, first bulb can send out X and penetrate
Line；When the output valve of grid voltage is second voltage value, first bulb can not send out X-ray；The second voltage
Value is more than the first voltage value；Alternatively,
In the unwrapping wire time interval, controls first bulb corresponding bulb high pressure and electricity is exported to first bulb
Pressure；Other time section except the unwrapping wire time interval controls the corresponding bulb high pressure of first bulb not to institute
State the first bulb output voltage；It is described when the corresponding bulb high pressure of first bulb is to the first bulb output voltage
First bulb can send out X-ray；When the corresponding bulb high pressure of first bulb is not to the first bulb output voltage,
First bulb can not send out X-ray.
Based on the above-mentioned technical proposal, in the embodiment of the present invention, for the first bulb at least two bulbs, the first bulb
X-ray only can be sent out in the unwrapping wire time interval of the first bulb, X-ray, i.e. X can not be sent out in section at other times
Ray is off state.Enable multiple bulbs during being rotated with scanning support using X-ray turn-off technique based on this,
Each bulb is switched fast in off state and unwrapping wire state in sequence, and when some bulb sends out X-ray, other bulbs are not
X-ray can be sent out, state is off, the scattering between different bulbs can be avoided to influence in this way, avoids bulb
Scattered rays is irradiated on the corresponding detector of another bulb, and avoids the formation of projection error, CT image artifacts or uneven
The problems such as.Moreover, because the turn-off time of the X-ray of each bulb is very short, therefore, each bulb, the hair of X-ray are individually seen
Penetrate with data acquisition projection direction of rotation be approximate continuous, do not influence the reconstruction process of subsequent CT images, will not shadow
Ring the resolution ratio and temporal resolution of image.
Description of the drawings
The drawings herein are incorporated into the specification and forms part of this specification, and shows the implementation for meeting the application
Example, and the principle together with specification for explaining the application.
Fig. 1 is a kind of structural schematic diagram of the Medical Devices including at least two bulbs of the application；
Fig. 2 is one embodiment flow chart of the preparation method of the CT images of the application；
Fig. 3 is a kind of structural schematic diagram for obtaining device place Medical Devices of the CT images of the application；
Fig. 4 is the embodiment block diagram of the acquisition device of the CT images of the application.
Specific implementation mode
In term used in this application merely for the sake of the purpose of description specific embodiment, and unrestricted the application.This Shen
Please it is also intended to including most forms with the "an" of the singulative used in claims, " described " and "the", unless
Context clearly shows that other meanings.It is also understood that term "and/or" used herein refers to comprising one or more
Associated list items purpose any or all may combine.
It will be appreciated that though various information, but this may be described using term first, second, third, etc. in the application
A little information should not necessarily be limited by these terms.These terms are only used for same type of information being distinguished from each other out.For example, not departing from
In the case of the application range, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as
One information.Depending on context, in addition, used word " if " can be construed to " ... when " or " when ... "
Or " in response to determination ".
The embodiment of the preparation method for the CT images that the application proposes can be applied and obtain CT images by scan mode
Various Medical Devices on, these Medical Devices can include but is not limited to CT equipment etc..By taking CT equipment as an example, CT equipment is to make
With X-ray to being scanned object, for example, usually a part (such as heart) certain thickness level of human body is scanned, with
Obtain CT images.
CT equipment is generally by the critical pieces group such as scanning support, bulb (being referred to as x-ray source), detector, scanning bed
At bulb and detector are fixed on scanning support, and scanned object is placed on scanning bed between bulb and detector.It is sweeping
During retouching, bulb and detector are rotated around rotation center together with scanning support, and the opposite position of bulb and detector
It sets and remains unchanged.In scanning process, bulb sends out X-ray, after X-ray passes through the scanned object on scanning bed, is detected
Device receives, and is converted into digital signal (i.e. data), and after treatment, can be transformed into human eye can observe digital signal
CT images.
It is interior at the same time in order to improve the temporal resolution of moving object (such as heart), double up X-ray throwing
The angle of coverage range of shadow obtains the required data of CT image reconstructions within the extremely short time, can be fixed on scanning support
Few two bulbs and at least two detector corresponding with this at least two bulb, each bulb correspond to a detector.
In the rotary course of scanning support, multiple bulbs can be simultaneously emitted by X-ray, and be received by the corresponding detector of bulb.Such as Fig. 1 institutes
Show, bulb 1 and detector 1 corresponding with bulb 1, bulb 2 and detector 2 corresponding with bulb 2 secured on scanning support,
Bulb 3 and detector corresponding with bulb 33.The X-ray that bulb 1 is sent out is received by detector 1, and the X that bulb 2 is sent out is penetrated
Line is received by detector 2, and the X-ray that bulb 3 is sent out is received by detector 3.
In Fig. 1, the bulb quantity installed on scanning support is 3, and is mounted with 3 detectors corresponding with 3 bulbs,
3 bulbs are a kind of example, can also be 2 or 4 or more in practical application.
In more bulb scanning techniques, in the rotary course of scanning support, bulb 1, bulb 2, bulb 3, detector 1, inspection
Device 2 and detector 3 are surveyed as scanning support rotates together, and bulb 1, bulb 2, bulb 3 are simultaneously emitted by X-ray, detector 1,
Detector 2, detector 3 collect three groups of data simultaneously, and therefore, scanning support often rotates 1/3 circle, and each detector can be obtained by
The data for projection of 1/3 circle, and 3 detectors can obtain the data for projection of a full circle, to improve moving object scanning
Temporal resolution.
But under aforesaid way, the X-ray that bulb 1 is sent out can not only be received by detector 1, which arrives
It can be scattered when scanned object surface or inside, and scattered rays can be received by detector 2 and detector 3, thus
Detector 2 and detector 3 form projection error, lead to CT image artifacts or uneven.Similarly, the X-ray that bulb 2 is sent out is not
Can only be received by detector 2, the x-ray bombardment to scanned object surface or it is internal when can scatter, and scattered rays
It can be received by detector 1 and detector 3, to form projection error in detector 1 and detector 3, lead to CT image artifacts
Or it is uneven.The X-ray that bulb 3 is sent out can not only be received by detector 3, the x-ray bombardment to scanned object surface
Or can be scattered when internal, and scattered rays can be received by detector 1 and detector 2, in detector 1 and detector
2 form projection error, lead to CT image artifacts or uneven.
For above-mentioned discovery, a kind of preparation method of CT images is proposed in the embodiment of the present invention, this method, which is applied, to be passed through
Scan mode obtain CT images Medical Devices on, the Medical Devices include at least two bulbs and at least two bulbs pair
At least two detectors answered, referring to Fig. 2, this method may comprise steps of：
Step 201, the unwrapping wire time interval of the first bulb at least two bulbs is determined.
In the embodiment of the present invention, the unwrapping wire time interval of each first bulb is not deposited with the unwrapping wire time interval of other bulbs
In time of coincidence section, alternatively, between the unwrapping wire time interval of each first bulb and the unwrapping wire time interval of other bulbs
Time of coincidence section is less than predetermined threshold value.In addition, the unwrapping wire time interval of all bulbs occupies all time intervals, it is not present
Unappropriated time interval.
Wherein, predetermined threshold value can be arbitrarily arranged according to practical experience, is such as arranged by experience or experimental data pre-
If threshold value, such as it is set as 0.0001 second, or is set as a ten thousandth etc. of unwrapping wire time interval.For setting for predetermined threshold value
It sets, as long as the time of coincidence section between the unwrapping wire time interval and the unwrapping wire time interval of other bulbs of the first bulb of guarantee is small
When predetermined threshold value, do not have to influence substantially on actual result.
In the embodiment of the present invention, the process of the unwrapping wire time interval of the first bulb at least two bulbs is determined, specifically
It can include but is not limited to such as under type：Determine that the unwrapping wire time interval of the first bulb is：[(k*N+m) * t, (k*N+m+1) *
t).Wherein, N is the quantity of at least two bulbs；M is the index of the first bulb, and the value of m is 0,1 ..., in N-2, N-1
One numerical value；T is the time interval of each unwrapping wire；K is the unwrapping wire number of the first bulb, and the value of k is followed successively by 0,1 ..., K,
K is the first bulb maximum unwrapping wire number.[) indicate that unwrapping wire time interval includes (k*N+m) * t, but do not include (k*N+m+1) * t.
Certainly, in practical applications, it is not limited to the mode of the unwrapping wire time interval of the first bulb of above-mentioned determination, as long as
The unwrapping wire time interval of the unwrapping wire time interval for ensureing the first bulb of each of at least two bulbs and other bulbs is not present
Time of coincidence section repeats no more other methods of determination in the present embodiment.
As shown in Figure 1, may include bulb 1, bulb 2 and bulb 3 at least two bulbs, and this at least two bulb
Quantity N is 3, and the index of the bulb 1 is 0, and the index of the bulb 2 is 1, and the index of the bulb 3 is 2.Based on this, bulb 1
Unwrapping wire time interval can be：[(k*3+0) * t, (k*3+0+1) * t).When the value of k is followed successively by 0,1 ..., when K, then bulb 1
Unwrapping wire time interval be followed successively by：[0, t), [3*t, 4*t), [6*t, 7*t) ..., [(3K) * t, (3K+1) * t).Bulb 2 is put
Line time interval can be：[(k*3+1) * t, (k*3+1+1) * t).When the value of k is followed successively by 0,1 ..., when K, then bulb 2
Unwrapping wire time interval is followed successively by：[t, 2*t), [4*t, 5*t), [7*t, 8*t) ..., [(3K+1) * t, (3K+2) * t).Bulb 3
Unwrapping wire time interval can be：[(k*3+2) * t, (k*3+2+1) * t).When the value of k is followed successively by 0,1 ..., when K, then bulb 3
Unwrapping wire time interval be followed successively by：[2*t, 3*t), [5*t, 6*t), [8*t, 9*t) ..., [(3K+2) * t, (3K+3) * t).
Obviously, the unwrapping wire time interval of bulb 1 is different from the unwrapping wire time interval of bulb 2, the unwrapping wire time interval of bulb 1
Different from the unwrapping wire time interval of bulb 3, the unwrapping wire time interval of bulb 2 is different from the unwrapping wire time interval of bulb 3.Moreover,
The unwrapping wire time interval of bulb 1, bulb 2 and bulb 3 has just averagely divided the time interval of (3K+3) * t.Further, false
If t be 1 millisecond, K 2, bulb 1 obtain unwrapping wire time interval [0,1 millisecond), bulb 2 obtain unwrapping wire time interval [1 millisecond, 2
Millisecond), bulb 3 obtain unwrapping wire time interval [2 milliseconds, 3 milliseconds).Later, bulb 1 obtain unwrapping wire time interval [3 milliseconds, 4 milli
Second), bulb 2 obtain unwrapping wire time interval [4 milliseconds, 5 milliseconds), bulb 3 obtain unwrapping wire time interval [5 milliseconds, 6 milliseconds).It
Afterwards, bulb 1 obtain unwrapping wire time interval [6 milliseconds, 7 milliseconds), bulb 2 obtain unwrapping wire time interval [7 milliseconds, 8 milliseconds), bulb
3 obtain unwrapping wire time interval [8 milliseconds, 9 milliseconds).
Step 202, in the unwrapping wire time interval of the first bulb, the first bulb of control can send out X-ray；In the first bulb
Unwrapping wire time interval except other time section, control the first bulb can not send out X-ray.Based on this, can make
In each time interval, one and only one bulb can send out X-ray.
In the embodiment of the present invention, in the unwrapping wire time interval of the first bulb, the first bulb of control can send out X-ray；
Other time section except the unwrapping wire time interval of first bulb, the first bulb of control can not send out the process of X-ray, tool
Body may include that can include but is not limited to such as under type：
Mode one, the unwrapping wire time interval in the first bulb, the output valve for controlling the corresponding grid voltage of the first bulb are
The first voltage value；Other time section except the unwrapping wire time interval of the first bulb, the corresponding grid of the first bulb of control
The output valve of voltage is second voltage value.Wherein, when the output valve of grid voltage is the first voltage value, then the first bulb can
Send out X-ray；When the output valve of grid voltage is second voltage value, then the first bulb can not send out X-ray；Second voltage
Value is more than the first voltage value.
In the embodiment of the present invention, the output valve of the corresponding grid voltage of the first bulb of control is the process of the first voltage value,
It can specifically include but be not limited to such as under type：The first signal is exported to the control circuit of the corresponding grid voltage of the first bulb,
First signal is used to make the control circuit of the corresponding grid voltage of the first bulb to export the first voltage value.Control the first bulb correspondence
Grid voltage output valve be second voltage value process, can specifically include but be not limited to such as under type：To the first bulb
The control circuit of corresponding grid voltage exports second signal, and second signal is used to make the control of the corresponding grid voltage of the first bulb
Circuit output second voltage value processed.
Wherein, the first signal can be high level signal, and second signal can be low level signal.Alternatively, the first letter
Number can be low level signal, and second signal can be high level signal.
Wherein, each bulb can independently be controlled using a grid voltage, i.e., each bulb is corresponding unique
The control circuit of one grid voltage, the control circuit are used to provide grid voltage for the bulb.
Wherein, the principle that bulb sends out X-ray can be：Electron beam is generated in bulb cathode, which strikes ball
X-ray is generated on tube anode, to send out X-ray, the position (hot spot) that X-ray is generated on anode is known as focus.In practice, it is
The different size of focus of acquisition makes focus be located at the same position of anode, can be on the direction perpendicular to cathode electron beam
Apply a voltage, referred to as grid voltage.When the output valve of grid voltage is very big, the electron beam that can reach anode can be very
It is faint or even disappear, thus the X-ray generated is also very weak or even do not generate.When the output valve of grid voltage is smaller, gets at and reach
The electron beam of anode is stronger, and the X-ray of generation is stronger.Therefore, by constantly changing the output valve of grid voltage, thus it is possible to vary electricity
Beamlet is strong and weak, and X-ray is then made quickly to change whether there is or not between.
Based on above-mentioned principle, in the embodiment of the present invention, in the unwrapping wire time interval of the first bulb, need to ensure the first bulb
X-ray can be sent out, therefore, the output valve of the corresponding grid voltage of the first bulb of control is normal voltage value (first voltage
Value), the electron beam that bulb cathode generates at this time can strike bulb anode, generate X-ray, and at this moment X-ray is in opening state
State.Other time section except the unwrapping wire time interval of the first bulb needs to ensure that the first bulb can not send out X and penetrate
Line, therefore, the output valve of the corresponding grid voltage of the first bulb of control is sufficiently large voltage value (second voltage value), at this time ball
The electron beam that tube cathode generates can not strike bulb anode, can not generate X-ray, at this moment X-ray is off state.
Wherein, any voltage value that the first voltage value can be between 400V-500V, when the first voltage value is in 400V-
When changing between 500V, thus it is possible to vary the movement velocity of electron beam then makes X-ray quickly change.Second voltage value can be
Tube cathode can be caused to generate when second voltage value is more than particular voltage level more than the voltage value of particular voltage level (such as 800V)
Electron beam can not strike bulb anode.
As shown in Figure 1, time interval [0, t), control 1 corresponding grid voltage of bulb output valve be first voltage
Value, the output valve for controlling bulb 2 and 3 corresponding grid voltage of bulb is second voltage value, and bulb 1 can send out X-ray, bulb
2 and bulb 3 can not send out X-ray.Time interval [t, 2*t), control 2 corresponding grid voltage of bulb output valve be first
Voltage value, the output valve for controlling bulb 1 and 3 corresponding grid voltage of bulb is second voltage value, and bulb 2 can send out X-ray,
Bulb 1 and bulb 3 can not send out X-ray.Time interval [2*t, 3*t), control 3 corresponding grid voltage of bulb output valve
For the first voltage value, the output valve for controlling bulb 1 and 2 corresponding grid voltage of bulb is second voltage value, and bulb 3 can be sent out
X-ray, bulb 1 and bulb 2 can not send out X-ray.Time interval [3*t, 4*t), control bulb 1 corresponding grid voltage
Output valve is the first voltage value, and the output valve for controlling bulb 2 and 3 corresponding grid voltage of bulb is second voltage value, and bulb 1 can
To send out X-ray, bulb 2 and bulb 3 can not send out X-ray.And so on, time interval [(3K+2) * t, (3K+3) * t),
The output valve for controlling 3 corresponding grid voltage of bulb is the first voltage value, controls bulb 1 and 2 corresponding grid voltage of bulb
Output valve is second voltage value, and bulb 3 sends out X-ray, and bulb 1 and bulb 2 can not send out X-ray.
Based on this, when bulb 1 sends out X-ray, bulb 2 and bulb 3 can not send out X-ray.X-ray is sent out in bulb 2
When, bulb 1 and bulb 3 can not send out X-ray.When bulb 3 sends out X-ray, bulb 1 and bulb 2 can not send out X-ray.Cause
This, when any one bulb sends out X-ray, other all bulbs are in off state, to avoid different bulbs it
Between scattering influence.
Mode two, the unwrapping wire time interval in the first bulb, corresponding the first bulb of bulb high pressure pair of the first bulb of control
Output voltage；Other time section except the unwrapping wire time interval of the first bulb, the corresponding bulb of the first bulb of control are high
Pressure is not to the first bulb output voltage；In corresponding the first bulb of the bulb high pressure pair output voltage of the first bulb, the first bulb
X-ray can be sent out；When the corresponding bulb high pressure of the first bulb is not to the first bulb output voltage, the first bulb can not be sent out
Go out X-ray.
Wherein, Medical Devices can only provide a bulb high pressure, and each bulb at least two bulbs is corresponding
The same bulb high pressure.In the case, in the unwrapping wire time interval of the first bulb, the corresponding ball of at least two bulbs of control
Pipe high pressure is switched to the first bulb, so that bulb high pressure pair the first bulb output voltage；In the unwrapping wire time interval of the first bulb
Except other time section, control bulb high pressure be switched to other bulbs so that bulb high pressure to the first bulb export electricity
Pressure, and to other bulb output voltages.Certainly, Medical Devices may be that each bulb provides a bulb high pressure, by each ball
Corresponding bulb high pressure is managed to this bulb output voltage or non-output voltage, for no longer superfluous in which embodiment of the present invention
It states.
Need not be that each bulb configures a bulb high pressure when there are at least two bulbs in the embodiment of the present invention,
But a bulb high pressure is configured for all bulbs, to reduce the quantity of bulb high pressure.It is based upon the ball of all bulb configurations
Pipe high pressure, which can be to each bulb output voltage, but in the same time, which can only be to a bulb
Output voltage controls bulb high pressure pair the first bulb output voltage, at this time the ball that is, in the unwrapping wire time interval of the first bulb
Pipe high pressure is not to other bulb output voltages.
The principle that bulb sends out X-ray had been introduced in the above process, first process is that bulb cathode generates electron beam,
And the premise that bulb cathode generates electron beam is exactly that bulb high pressure is in bulb cathode output voltage.When bulb cathode is defeated
When going out voltage, then the bulb cathode can generate electron beam；When bulb cathode is not by output voltage, then the bulb cathode cannot
Enough generate electron beam.Based on this, when bulb high pressure is to bulb output voltage, bulb cathode can generate electron beam, the ball
Pipe can send out X-ray, and other bulbs be since not by output voltage, bulb cathode can not generate electron beam, also just not
X-ray can be sent out.
As shown in Figure 1, time interval [0, t), control bulb high pressure is to 1 output voltage of bulb, bulb 2 and bulb at this time
3 by output voltage, and bulb 1 can send out X-ray, and bulb 2 and bulb 3 can not send out X-ray.Time interval [t, 2*t),
Bulb high pressure is controlled to 2 output voltage of bulb, not by output voltage, bulb 2 can send out X-ray for bulb 1 and bulb 3 at this time,
Bulb 1 and bulb 3 can not send out X-ray.Time interval [2*t, 3*t), control bulb high pressure to 3 output voltage of bulb, this
When bulb 1 and bulb 2 not by output voltage, bulb 3 can send out X-ray, and bulb 1 and bulb 2 can not send out X-ray.When
Between section [3*t, 4*t), control bulb high pressure to 1 output voltage of bulb, bulb 2 and bulb 3 be not by output voltage, bulb at this time
1 can send out X-ray, and bulb 2 and bulb 3 can not send out X-ray.And so on, in time interval [(3K+2) * t, (3K+3) *
T), control bulb high pressure is to 3 output voltage of bulb, and not by output voltage, bulb 3 can send out X and penetrate for bulb 1 and bulb 2 at this time
Line, bulb 1 and bulb 2 can not send out X-ray.When bulb 1 sends out X-ray, bulb 2 and bulb 3 can not send out X-ray.
When bulb 2 sends out X-ray, bulb 1 and bulb 3 can not send out X-ray.When bulb 3 sends out X-ray, 2 nothing of bulb 1 and bulb
Method sends out X-ray.Therefore when any one bulb sends out X-ray, other all bulbs are in off state, to avoid
Scattering between different bulbs influences.
Step 203, the corresponding first detector collected data in unwrapping wire time interval of the first bulb, and profit are obtained
With the first detector, collected data obtain CT images in unwrapping wire time interval.
In the embodiment of the present invention, the corresponding first detector collected number in unwrapping wire time interval of the first bulb is obtained
According to process, can specifically include but be not limited to such as under type：The first detector is obtained to acquire in all unwrapping wire time intervals
The data arrived, and from collected all data, extract the first detector collected data in unwrapping wire time interval.
Alternatively, in unwrapping wire time interval, the first detector of control carries out data acquisition；Other time area except unwrapping wire time interval
Between, the first detector of control is acquired without data；It is in unwrapping wire time zone to obtain the collected all data of the first detector
Interior collected data.
Wherein, the first detector of control carries out the process of data acquisition, can specifically include but is not limited to such as under type：To
First detector exports third signal, and the third signal is for making the first detector carry out data acquisition.Control the first detector
Without the process of data acquisition, it can specifically include but be not limited to such as under type：Fourth signal is exported to the first detector, it should
Fourth signal is for making the first detector be acquired without data.
Wherein, third signal can be high level signal, and fourth signal can be low level signal.Alternatively, third is believed
Number can be low level signal, and fourth signal can be high level signal.
As shown in Figure 1, can obtain 1 corresponding detector 1 of bulb all unwrapping wire time intervals [0,9 millisecond) in acquisition
Data arrived, and from collected all data, extract unwrapping wire time interval [0,1 millisecond), [3 milliseconds, 4 milliseconds),
[6 milliseconds, 7 milliseconds) in collected data.2 corresponding detector 2 of bulb can be obtained in all unwrapping wire time intervals [0,9
Millisecond) in collected data, and from collected all data, extract unwrapping wire time interval [1,2 millisecond), [4 millis
Second, 5 milliseconds), [7 milliseconds, 8 milliseconds) in collected data.3 corresponding detector 3 of bulb can be obtained in all unwrapping wire
Between section [0,9 millisecond) in collected data, and from collected all data, extract in unwrapping wire time interval [2,3
Millisecond), [5 milliseconds, 6 milliseconds), [8 milliseconds, 9 milliseconds) in collected data.
Assuming that every millisecond of detector collects 100 data, detector 1 collects 900 data, the 1-100 number altogether
According to for detector 1 unwrapping wire time interval [0,1 millisecond) in collected data, the 301-400 data are that detector 1 is being put
Line time interval [3 milliseconds, 4 milliseconds) in collected data, the 601-700 data are detector 1 in unwrapping wire time interval
[6 milliseconds, 7 milliseconds) in collected data, therefore, detector 1 abandon 101-300,401-600,701-900 data.
Detector 2 collects 900 data altogether, the 101-200 data be detector 2 unwrapping wire time interval [1,2 millisecond) in adopt
The data collected, the 401-500 data be detector 2 unwrapping wire time interval [4 milliseconds, 5 milliseconds) in collected data,
The 701-800 data be detector 2 unwrapping wire time interval [7 milliseconds, 8 milliseconds) in collected data, therefore, detector
2 abandon the data of 1-100,201-400,501-700,801-900.Detector 3 collects 900 data, 201-300 altogether
A data be detector 3 unwrapping wire time interval [2,3 milliseconds) in collected data, the 501-600 data are detector 3
Unwrapping wire time interval [5 milliseconds, 6 milliseconds) in collected data, the 801-900 data are detector 3 in the unwrapping wire time
Section [8 milliseconds, 9 milliseconds) in collected data, therefore, detector 3 abandon 1-200,301-500,601-800 number
According to.
In another example as shown in Figure 1, control 1 corresponding detector 1 of bulb unwrapping wire time interval [0,1 millisecond) collect
The 1-100 data, control 2 corresponding detector 2 of bulb unwrapping wire time interval [1,2 millisecond) collect 101-200
Data, control 3 corresponding detector 3 of bulb unwrapping wire time interval [2,3 milliseconds) collect the 201-300 data.In addition,
Control detector 1 unwrapping wire time interval [3,4 milliseconds) collect the 301-400 data, control detector 2 is in the unwrapping wire time
Section [4,5 milliseconds) collect the 401-500 data, control detector 3 unwrapping wire time interval [5,6 milliseconds) collect
501-600 data.Control detector 1 unwrapping wire time interval [6,7 milliseconds) collect the 601-700 data, control inspection
Survey device 2 unwrapping wire time interval [7,8 milliseconds) collect the 701-800 data, control detector 3 is in unwrapping wire time interval
[8,9 milliseconds) collect the 801-900 data.
Based on above two mode, 1 collected the 1-100 data of detector, the 301-400 number can be used
According to, the 601-700 data, 2 collected the 101-200 data of detector, the 401-500 data, 701-800
Data, 3 collected the 201-300 data of detector, the 501-600 data, the 801-900 data obtain CT figures
The acquisition process of picture, the CT images repeats no more.
Based on the above-mentioned technical proposal, in the embodiment of the present invention, for the first bulb at least two bulbs, the first bulb
X-ray only can be sent out in the unwrapping wire time interval of the first bulb, X-ray, i.e. X can not be sent out in section at other times
Ray is off state.Enable multiple bulbs during being rotated with scanning support using X-ray turn-off technique based on this,
Each bulb is switched fast in off state and unwrapping wire state in sequence, and when some bulb sends out X-ray, other bulbs are not
X-ray can be sent out, state is off, the scattering between different bulbs can be avoided to influence in this way, avoids bulb
Scattered rays is irradiated on the corresponding detector of another bulb, and avoids the formation of projection error, CT image artifacts or uneven
The problems such as.Moreover, because the turn-off time of the X-ray of each bulb is very short, therefore, each bulb, the hair of X-ray are individually seen
Penetrate with data acquisition projection direction of rotation be approximate continuous, do not influence the reconstruction process of subsequent CT images, will not shadow
Ring the resolution ratio and temporal resolution of image.
Corresponding with the embodiment of preparation method of the application CT images, present invention also provides the acquisition devices of CT images
And the embodiment of Medical Devices.
As shown in figure 3, for the hardware architecture diagram of the application Medical Devices, which carries out by taking CT equipment as an example
Example.The Medical Devices obtain CT images by scan mode, and the Medical Devices have specifically included：Console 310, scanning support
320, at least two bulbs 330 and at least two detector corresponding at least two bulbs 330 340.Console 310 has
Body includes：Processor 311 and for store CT images acquisition 300 corresponding executable instruction of device memory 312.
Wherein, the acquisition device 300 of the CT images in memory 312 is schemed as the device on a logical meaning when needing acquisition CT
When picture, the CT images can be obtained into 300 corresponding computer program instructions of device from memory 312 by processor 311
It reads in memory and runs.In one example, the processor 311 is right by the acquisition device 300 for reading the CT images
The executable instruction answered simultaneously is used to execute：
Determine the unwrapping wire time interval of the first bulb at least two bulb；
In the unwrapping wire time interval, X-ray can be sent out by controlling first bulb；The unwrapping wire time interval it
Outer other time section, X-ray can not be sent out by controlling first bulb；
Obtain corresponding first detector of first bulb collected data in the unwrapping wire time interval, and profit
With first detector, collected data obtain CT images in the unwrapping wire time interval.
In another example, processor 311 is right in the acquisition device 300 by reading the CT images in memory 312
The executable instruction answered, when determining the unwrapping wire time interval of the first bulb at least two bulb, each first bulb
The unwrapping wire time intervals of unwrapping wire time interval and other bulbs time of coincidence section is not present, alternatively, each first bulb
Time of coincidence section between unwrapping wire time interval and the unwrapping wire time interval of other bulbs is less than predetermined threshold value.
In another example, processor 311 is right in the acquisition device 300 by reading the CT images in memory 312
The executable instruction answered may include when determining the unwrapping wire time interval of the first bulb at least two bulb：It determines
The unwrapping wire time interval of first bulb is：[(k*N+m) * t, (k*N+m+1) * t)；Wherein, N is the number of at least two bulbs
Amount；M is the index of the first bulb, and the value of m is 0,1 ..., a numerical value in N-2, N-1；T is the time of each unwrapping wire
Interval；K is the unwrapping wire number of the first bulb, and the value of k is followed successively by 0,1 ..., and K, K are the maximum unwrapping wire number of the first bulb.
In another example, processor 311 is right in the acquisition device 300 by reading the CT images in memory 312
The executable instruction answered, in the unwrapping wire time interval, X-ray can be sent out by controlling first bulb；In the unwrapping wire
Between other time section except section may include when X-ray can not be sent out by controlling first bulb：It is put described
Line time interval, the output valve for controlling the corresponding grid voltage of first bulb are the first voltage value；In the unwrapping wire time
Other time section except section, the output valve for controlling the corresponding grid voltage of first bulb are second voltage value；Its
In, when the output valve of grid voltage is the first voltage value, first bulb can send out X-ray；It is defeated when grid voltage
Go out value be second voltage value when, first bulb can not send out X-ray；The second voltage value is more than the first voltage
Value；Alternatively, in the unwrapping wire time interval, controls first bulb corresponding bulb high pressure and electricity is exported to first bulb
Pressure；Other time section except the unwrapping wire time interval controls the corresponding bulb high pressure of first bulb not to institute
State the first bulb output voltage；It is described when the corresponding bulb high pressure of first bulb is to the first bulb output voltage
First bulb can send out X-ray；When the corresponding bulb high pressure of first bulb is not to the first bulb output voltage,
First bulb can not send out X-ray.
In another example, processor 311 is right in the acquisition device 300 by reading the CT images in memory 312
When the output valve of the executable instruction answered, the corresponding grid voltage of control first bulb is the first voltage value, may include：
The first signal is exported to the control circuit of the corresponding grid voltage of first bulb, first signal is for making described first
The control circuit of the corresponding grid voltage of bulb exports the first voltage value；Control the defeated of the corresponding grid voltage of first bulb
Go out value be second voltage value when, may include：To the second letter of the control circuit of the corresponding grid voltage of first bulb output
Number, the second signal is used to make the control circuit of the corresponding grid voltage of first bulb to export second voltage value.
In another example, processor 311 is right in the acquisition device 300 by reading the CT images in memory 312
The executable instruction answered obtains the corresponding first detector collected number in the unwrapping wire time interval of first bulb
According to when, may include：First detector collected data in all unwrapping wire time intervals are obtained, from collected institute
Have in data, extracts first detector collected data in the unwrapping wire time interval；Alternatively, in the unwrapping wire
Time interval controls first detector and carries out data acquisition；Other time section except the unwrapping wire time interval,
First detector is controlled to acquire without data；It is to be put described to obtain the collected all data of first detector
Collected data in line time interval.Further, when controlling the first detector progress data acquisition, including：To
First detector exports third signal, and the third signal is for making first detector carry out data acquisition；It is controlling
When making first detector and being acquired without data, including：Fourth signal, the 4th letter are exported to first detector
Number for make first detector without data acquire.
It is the embodiment block diagram of the acquisition device of the CT images of the application referring to Fig. 4：Described device, which is applied, is passing through scanning
Mode obtains on the Medical Devices of CT images, the Medical Devices include at least two bulbs and at least two bulb
Corresponding at least two detector, described device specifically include：
Determining module 11, the unwrapping wire time interval for determining the first bulb at least two bulb；
Control module 12, in the unwrapping wire time interval, X-ray can be sent out by controlling first bulb；Institute
The other time section except unwrapping wire time interval is stated, X-ray can not be sent out by controlling first bulb；
Module 13 is obtained, is adopted in the unwrapping wire time interval for obtaining corresponding first detector of first bulb
The data collected, and utilize the corresponding first detector collected data in the unwrapping wire time interval of first bulb
Obtain CT images.
In the embodiment of the present invention, the unwrapping wire time interval of each first bulb is not deposited with the unwrapping wire time interval of other bulbs
In time of coincidence section, alternatively, between the unwrapping wire time interval of each first bulb and the unwrapping wire time interval of other bulbs
Time of coincidence section is less than predetermined threshold value.
The determining module 11, the unwrapping wire time interval specifically for determining first bulb are：[(k*N+m) * t, (k*N+m
+1)*t)；Wherein, N is the quantity of at least two bulbs；M is the index of the first bulb, and the value of m is 0,1 ..., N-2, N-1
In a numerical value；T is the time interval of each unwrapping wire；K is the unwrapping wire number of the first bulb, and the value of k is followed successively by 0,
1 ..., K, K are the maximum unwrapping wire number of the first bulb.
The control module 12 is specifically used for, in the unwrapping wire time interval, controlling the corresponding grid of first bulb
The output valve of voltage is the first voltage value；Other time section except the unwrapping wire time interval controls first ball
The output valve for managing corresponding grid voltage is second voltage value；Wherein, when the output valve of grid voltage is the first voltage value, institute
X-ray can be sent out by stating the first bulb；When the output valve of grid voltage is second voltage value, first bulb can not be sent out
Go out X-ray；The second voltage value is more than the first voltage value；Alternatively, in the unwrapping wire time interval, control described first
The corresponding bulb high pressure of bulb is to the first bulb output voltage；Other time area except the unwrapping wire time interval
Between, the corresponding bulb high pressure of first bulb is controlled not to the first bulb output voltage；It is corresponded in first bulb
Bulb high pressure to the first bulb output voltage when, first bulb can send out X-ray；In first bulb pair
When the bulb high pressure answered is not to the first bulb output voltage, first bulb can not send out X-ray.
The control module 12 is specifically used in the output valve for controlling the corresponding grid voltage of first bulb being first
During voltage value, the first signal is exported to the control circuit of the corresponding grid voltage of first bulb, wherein described the
One signal is used to make the control circuit of the corresponding grid voltage of first bulb to export the first voltage value；In control described first
During the output valve of the corresponding grid voltage of bulb is second voltage value, to the corresponding grid voltage of first bulb
Control circuit exports second signal, wherein the second signal is used to make the control of the corresponding grid voltage of first bulb
Circuit output second voltage value.
In the embodiment of the present invention, the Medical Devices only provide a bulb high pressure, and at least two bulb
Each bulb corresponds to the same bulb high pressure.
The acquisition module 13 is specifically used for when obtaining corresponding first detector of first bulb in the unwrapping wire
Between in section during collected data, obtain the first detector collected number in all unwrapping wire time intervals
According to, and from collected all data in all unwrapping wire time intervals, first detector is extracted in the unwrapping wire
Collected data in time interval；Alternatively,
In the unwrapping wire time interval, controls first detector and carry out data acquisition；In the unwrapping wire time interval
Except other time section, control first detector and acquired without data；First detector is obtained to collect
All data be in the unwrapping wire time interval collected data.
The acquisition module 13 is specifically used for during controlling the first detector progress data acquisition, to institute
The first detector output third signal is stated, the third signal is for making first detector carry out data acquisition；It is controlling
During first detector is acquired without data, fourth signal, the 4th letter are exported to first detector
Number for make first detector without data acquire.
The function of modules and the realization process of effect specifically refer to and correspond to step in the above method in above-mentioned apparatus
Realization process, details are not described herein.For device embodiments, since it corresponds essentially to embodiment of the method, so related
Place illustrates referring to the part of embodiment of the method.The apparatus embodiments described above are merely exemplary, wherein institute
It states the module illustrated as separating component may or may not be physically separated, the component shown as module can
To be or may not be physical module, you can be located at a place, or may be distributed over multiple network units.
Some or all of module therein can be selected according to the actual needs to realize the purpose of application scheme.This field is common
Technical staff is without creative efforts, you can to understand and implement.
Those skilled in the art after considering the specification and implementing the invention disclosed here, will readily occur to its of the application
Its embodiment.This application is intended to cover any variations, uses, or adaptations of the application, these modifications, purposes or
Person's adaptive change follows the general principle of the application and includes the undocumented common knowledge in the art of the application
Or conventional techniques.The description and examples are only to be considered as illustrative, and the true scope and spirit of the application are by following
Claim is pointed out.
It should be understood that the application is not limited to the precision architecture for being described above and being shown in the accompanying drawings, and
And various modifications and changes may be made without departing from the scope thereof.Scope of the present application is only limited by the accompanying claims.
Claims (16)
1. a kind of preparation method of CT scan CT images, which is characterized in that this method, which is applied, is passing through scanning
Mode obtains on the Medical Devices of CT images, the Medical Devices include at least two bulbs and at least two bulb
Corresponding at least two detector, the described method comprises the following steps：
Determine the unwrapping wire time interval of the first bulb at least two bulb；In determination at least two bulb
The first bulb unwrapping wire time interval process, specifically include：Determine that the unwrapping wire time interval of first bulb is：[(k*
N+m) * t, (k*N+m+1) * t)；Wherein, N is the quantity of at least two bulb；M is the index of first bulb, and m
Value be 0,1 ..., a numerical value in N-2, N-1；T is the time interval of each unwrapping wire；K is putting for first bulb
Line number, and the value of k is followed successively by 0,1 ..., K, K are the maximum unwrapping wire number of the first bulb；
In the unwrapping wire time interval, X-ray can be sent out by controlling first bulb；Except the unwrapping wire time interval
Other time section, X-ray can not be sent out by controlling first bulb；
Corresponding first detector of first bulb collected data in the unwrapping wire time interval are obtained, and utilize institute
It states the first detector collected data in the unwrapping wire time interval and obtains CT images.
2. according to the method described in claim 1, it is characterized in that, the unwrapping wire time interval of each first bulb and other bulbs
Unwrapping wire time interval be not present time of coincidence section, alternatively, the unwrapping wire time interval of each first bulb and other bulbs
Time of coincidence section between unwrapping wire time interval is less than predetermined threshold value.
3. according to the method described in claim 1, it is characterized in that, described in the unwrapping wire time interval, control described first
Bulb can send out X-ray；Other time section except the unwrapping wire time interval, controlling first bulb can not
The process for sending out X-ray, specifically includes：
In the unwrapping wire time interval, the output valve for controlling the corresponding grid voltage of first bulb is the first voltage value；
Other time section except the unwrapping wire time interval, the output valve for controlling the corresponding grid voltage of first bulb are the
Two voltage values；Wherein, when the output valve of grid voltage is the first voltage value, first bulb can send out X-ray；Work as grid
When the output valve of lattice voltage is second voltage value, first bulb can not send out X-ray；The second voltage value is more than institute
State the first voltage value；Alternatively,
In the unwrapping wire time interval, the corresponding bulb high pressure of first bulb is controlled to the first bulb output voltage；
Other time section except the unwrapping wire time interval controls the corresponding bulb high pressure of first bulb not to described the
One bulb output voltage；When the corresponding bulb high pressure of first bulb is to the first bulb output voltage, described first
Bulb can send out X-ray；It is described when the corresponding bulb high pressure of first bulb is not to the first bulb output voltage
First bulb can not send out X-ray.
4. according to the method described in claim 3, it is characterized in that,
The output valve for controlling the corresponding grid voltage of first bulb is the process of the first voltage value, is specifically included：To
The control circuit of the corresponding grid voltage of first bulb exports the first signal, and first signal is for making first ball
Manage the control circuit output the first voltage value of corresponding grid voltage；
The output valve for controlling the corresponding grid voltage of first bulb is the process of second voltage value, is specifically included：To
The control circuit of the corresponding grid voltage of first bulb exports second signal, and the second signal is for making first ball
Manage the control circuit output second voltage value of corresponding grid voltage.
5. according to the method described in claim 3, it is characterized in that, the Medical Devices only provide a bulb high pressure, and institute
It states each bulb at least two bulbs and corresponds to the same bulb high pressure.
6. according to the method described in claim 1, it is characterized in that, described obtain corresponding first detector of first bulb
The process of collected data, specifically includes in the unwrapping wire time interval：
First detector collected data in all unwrapping wire time intervals are obtained, from collected all data,
Extract first detector collected data in the unwrapping wire time interval；Alternatively,
In the unwrapping wire time interval, controls first detector and carry out data acquisition；Except the unwrapping wire time interval
Other time section, control first detector and acquired without data；Obtain the collected institute of first detector
It is the collected data in the unwrapping wire time interval to have data.
7. according to the method described in claim 6, it is characterized in that,
Control first detector carries out the process of data acquisition, specifically includes：To first detector output the
Three signals, the third signal is for making first detector carry out data acquisition；
The process that control first detector is acquired without data, specifically includes：It is exported to first detector
Fourth signal, the fourth signal is for making first detector be acquired without data.
8. a kind of acquisition device of CT scan CT images, which is characterized in that described device is applied by sweeping
The mode of retouching obtains on the Medical Devices of CT images, the Medical Devices include at least two bulbs and at least two ball
Corresponding at least two detector is managed, described device specifically includes：
Determining module, the unwrapping wire time interval for determining the first bulb at least two bulb；The determining module,
Unwrapping wire time interval specifically for determination first bulb is：[(k*N+m) * t, (k*N+m+1) * t)；Wherein, N is at least
The quantity of two bulbs；M is the index of the first bulb, and the value of m is 0,1 ..., a numerical value in N-2, N-1；T is every
The time interval of secondary unwrapping wire；K is the unwrapping wire number of the first bulb, and the value of k is followed successively by 0,1 ..., and K, K are the first bulb
Maximum unwrapping wire number；
Control module, in the unwrapping wire time interval, X-ray can be sent out by controlling first bulb；In the unwrapping wire
Other time section except time interval, X-ray can not be sent out by controlling first bulb；
Module is obtained, it is collected in the unwrapping wire time interval for obtaining corresponding first detector of first bulb
Data, and collected data obtain CT in the unwrapping wire time interval using corresponding first detector of first bulb
Image.
9. device according to claim 8, which is characterized in that the unwrapping wire time interval of each first bulb and other bulbs
Unwrapping wire time interval be not present time of coincidence section, alternatively, the unwrapping wire time interval of each first bulb and other bulbs
Time of coincidence section between unwrapping wire time interval is less than predetermined threshold value.
10. device according to claim 8, which is characterized in that
The control module is specifically used for, in the unwrapping wire time interval, controlling the corresponding grid voltage of first bulb
Output valve is the first voltage value；Other time section except the unwrapping wire time interval controls first bulb and corresponds to
Grid voltage output valve be second voltage value；Wherein, when the output valve of grid voltage is the first voltage value, described first
Bulb can send out X-ray；When the output valve of grid voltage is second voltage value, first bulb can not send out X and penetrate
Line；The second voltage value is more than the first voltage value；Alternatively,
In the unwrapping wire time interval, the corresponding bulb high pressure of first bulb is controlled to the first bulb output voltage；
Other time section except the unwrapping wire time interval controls the corresponding bulb high pressure of first bulb not to described the
One bulb output voltage；When the corresponding bulb high pressure of first bulb is to the first bulb output voltage, described first
Bulb can send out X-ray；It is described when the corresponding bulb high pressure of first bulb is not to the first bulb output voltage
First bulb can not send out X-ray.
11. device according to claim 10, which is characterized in that
The control module is specifically used in the output valve for controlling the corresponding grid voltage of first bulb being the first voltage value
During, export the first signal to the control circuit of the corresponding grid voltage of first bulb, wherein first signal
For making the control circuit of the corresponding grid voltage of first bulb export the first voltage value；Controlling first bulb pair
During the output valve for the grid voltage answered is second voltage value, to the control electricity of the corresponding grid voltage of first bulb
Road exports second signal, wherein the second signal is for keeping the control circuit of the corresponding grid voltage of first bulb defeated
Go out second voltage value.
12. device according to claim 10, which is characterized in that the Medical Devices only provide a bulb high pressure, and
Each bulb at least two bulb corresponds to the same bulb high pressure.
13. device according to claim 8, which is characterized in that
The acquisition module is specifically used for obtaining corresponding first detector of first bulb in the unwrapping wire time interval
During interior collected data, the first detector collected data in all unwrapping wire time intervals are obtained, and
From collected all data in all unwrapping wire time intervals, first detector is extracted in the unwrapping wire time zone
Interior collected data；Alternatively,
In the unwrapping wire time interval, controls first detector and carry out data acquisition；Except the unwrapping wire time interval
Other time section, control first detector and acquired without data；Obtain the collected institute of first detector
It is the collected data in the unwrapping wire time interval to have data.
14. device according to claim 13, which is characterized in that
The acquisition module is specifically used for during controlling the first detector progress data acquisition, to described first
Detector exports third signal, and the third signal is for making first detector carry out data acquisition；Controlling described the
During one detector is acquired without data, fourth signal is exported to first detector, the fourth signal is used for
First detector is set to be acquired without data.
15. a kind of Medical Devices obtaining CT scan CT images by scan mode, which is characterized in that described
Medical Devices specifically include：Console, scanning support, at least two bulbs and corresponding at least two bulb at least two
A detector；Wherein, the console specifically includes：Processor and can for storing that the acquisition device of CT images is corresponding
The memory executed instruction；Wherein, the corresponding executable instruction of acquisition device that the processor passes through the reading CT images
And it is used to execute：
Determine the unwrapping wire time interval of the first bulb at least two bulb；In determination at least two bulb
The first bulb unwrapping wire time interval process, specifically include：Determine that the unwrapping wire time interval of first bulb is：[(k*
N+m) * t, (k*N+m+1) * t)；Wherein, N is the quantity of at least two bulb；M is the index of first bulb, and m
Value be 0,1 ..., a numerical value in N-2, N-1；T is the time interval of each unwrapping wire；K is putting for first bulb
Line number, and the value of k is followed successively by 0,1 ..., K, K are the maximum unwrapping wire number of the first bulb；
In the unwrapping wire time interval, X-ray can be sent out by controlling first bulb；Except the unwrapping wire time interval
Other time section, X-ray can not be sent out by controlling first bulb；
Corresponding first detector of first bulb collected data in the unwrapping wire time interval are obtained, and utilize institute
It states the first detector collected data in the unwrapping wire time interval and obtains CT images.
16. equipment according to claim 15, which is characterized in that the acquisition that the processor passes through the reading CT images
The corresponding executable instruction of device, in the unwrapping wire time interval, X-ray can be sent out by controlling first bulb；Described
Other time section except unwrapping wire time interval, when X-ray can not be sent out by controlling first bulb, including：
In the unwrapping wire time interval, the output valve for controlling the corresponding grid voltage of first bulb is the first voltage value；
Other time section except the unwrapping wire time interval, the output valve for controlling the corresponding grid voltage of first bulb are the
Two voltage values；Wherein, when the output valve of grid voltage is the first voltage value, first bulb can send out X-ray；Work as grid
When the output valve of lattice voltage is second voltage value, first bulb can not send out X-ray；The second voltage value is more than institute
State the first voltage value；Alternatively,
In the unwrapping wire time interval, the corresponding bulb high pressure of first bulb is controlled to the first bulb output voltage；
Other time section except the unwrapping wire time interval controls the corresponding bulb high pressure of first bulb not to described the
One bulb output voltage；When the corresponding bulb high pressure of first bulb is to the first bulb output voltage, described first
Bulb can send out X-ray；It is described when the corresponding bulb high pressure of first bulb is not to the first bulb output voltage
First bulb can not send out X-ray.
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Address after: 110167 No. 177-1 Innovation Road, Hunnan District, Shenyang City, Liaoning Province Patentee after: DongSoft Medical System Co., Ltd. Address before: Hunnan New Century Road 110179 Shenyang city of Liaoning Province, No. 16 Patentee before: Dongruan Medical Systems Co., Ltd., Shenyang |