CN108013885A - Radioscopy device - Google Patents
Radioscopy device Download PDFInfo
- Publication number
- CN108013885A CN108013885A CN201610927350.1A CN201610927350A CN108013885A CN 108013885 A CN108013885 A CN 108013885A CN 201610927350 A CN201610927350 A CN 201610927350A CN 108013885 A CN108013885 A CN 108013885A
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- China
- Prior art keywords
- camera chain
- camera
- radioscopy
- verification
- mark
- Prior art date
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/40—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with arrangements for generating radiation specially adapted for radiation diagnosis
- A61B6/4021—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with arrangements for generating radiation specially adapted for radiation diagnosis involving movement of the focal spot
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/42—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with arrangements for detecting radiation specially adapted for radiation diagnosis
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/44—Constructional features of apparatus for radiation diagnosis
- A61B6/4429—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units
Abstract
A kind of radioscopy device is provided, without making radioactive ray irradiation portion and radiation detector is moved can at three more than position perform radioscopy.Control unit (30) possesses：Verification and measurement ratio calculating part (32), calculate includes the verification and measurement ratio of the first camera chain of the first X-ray tube (11) and the first flat-panel detector (21) including the second camera chain including the 3rd X-ray tube (13) of the second X-ray tube (12) and the second flat-panel detector (22) and the 3rd camera chain of the 3rd flat-panel detector (23) and the 4th camera chain including the 4th X-ray tube (14) and fourth panel detector (24) to the position of mark respectively；Camera chain selector (33) is based on the verification and measurement ratio of the position of the mark calculated by the verification and measurement ratio calculating part (32) come two camera chains of the selection for radioscopy in the first camera chain, the second camera chain, the 3rd camera chain and the 4th camera chain.
Description
Technical field
The present invention relates to a kind of by being obtained from mutually different both direction comprising the internal mark for being retained in examinee
The image of the image of note or privileged site comprising examinee come detect body kinematics with examinee and the mark of movement or
The radioscopy device such as roentgenoscope of the position of privileged site.
Background technology
In the head that possesses irradiation treatment beam and make rack that this rotated centered on examinee, by tumour
Beam is treated Deng affected part X-ray irradiation, electron ray etc. to carry out in the radiotherapy apparatus of radiation cure, it is necessary to trouble
Radioactive ray are irradiated in portion exactly.However, not only existing the situation that examinee moves, also it is moved there are affected part itself
Situation.For example, the tumour near lung is significantly moved due to breathing.Therefore, proposing one kind in patent document 1 has
With the radiotherapy apparatus of lower structure：The mark of gold system is configured near tumour, the mark is detected using roentgenoscope
The position of note, so as to control the irradiation for the treatment of radiation.
As this radiotherapy apparatus, Patent Document 2 discloses one kind be used for by comprising be retained in by
The image of the internal mark of inspection person is had an X-rayed the roentgenoscope of the position to determine mark.In the patent document 2
In the roentgenoscope of record, detected using the first camera chain and the second camera chain by template matches etc. embedding
Enter internal mark, wherein, which includes from the first X-ray tube of ground side X-ray irradiation and from ceiling side
Detection has passed through the first X-ray detector of the X-ray of examinee, which is included from ground side X-ray irradiation
The second X-ray tube and from ceiling side detection passed through examinee X-ray the second X-ray detector.Then, using by
One photographing system photographs to two-dimentional fluoroscopy images and by the second photographing system photographs to two-dimentional fluoroscopy images obtain
Three-dimensional positional information.The three-dimensional positional information of this action and the mark of computing in real time is consecutively carried out, thus high accuracy
Detect the mark with mobile position in ground.Moreover, the photograph by controlling treatment radiation based on the positional information of the mark
Penetrate, be able to carry out the corresponding high-precision radioactive ray irradiation of movement with tumour.
At this time, it may be necessary to the position of the affected part of examinee etc. correspondingly from all directions towards affected part irradiation treatment beam,
Therefore the head of irradiation treatment beam can be rotated centered on examinee as described above.Therefore, in patent document
In the roentgenoscope of record, the first camera chain and the second camera chain need not to be blocked from X-ray using head
Position performs perspective.In order to carry out the action, in the roentgenoscope recorded in patent document, by being configured to
The first X-ray tube, the first X-ray detector, the second X-ray tube and the second X-ray detector is set to be carried out along track
It is mobile, radioscopy can be performed from position at set in advance three.
Patent document 1：Japanese Unexamined Patent Publication 2000-167072 publications
Patent document 2：Japanese Unexamined Patent Publication 2014-128412 publications
The content of the invention
Problems to be solved by the invention
The advantages of roentgenoscope described in above patent document 2, is, by using by X-ray tube and X-ray
The first camera chain and the second camera chain that detector is formed, can carry out radioscopy from multiple positions to examinee, but
Need a kind of moving mechanism for making X-ray tube and X-ray detector is moved.
The present invention is to complete to solve the above-mentioned problems, its first purpose is that providing one kind irradiates radioactive ray
Portion and radiation detector moved just can at three more than position perform radioscopy radioscopy device.
In addition, in this case, the position and direction of the affected part based on examinee or the moving state of affected part, with
The body kinematics of examinee and the mark of movement or the accuracy of detection of privileged site reduce sometimes.Therefore, the second mesh of the invention
Be provide it is a kind of can make the accuracy of detection of mark or privileged site improve radioscopy device.
Also, radioactive ray are continuously being irradiated from radioactive ray irradiation portion to perform radioscopy and shone in radioactive ray
, it is necessary to which the irradiation for temporarily ceasing radioactive ray is irradiated to cool down radioactive ray in the case of penetrating in portion the heat that have accumulated more than setting value
Portion.Therefore, the third object of the present invention is to provide a kind of radioscopy dress that can efficiently use radioactive ray irradiation portion
Put.
The solution used to solve the problem
The first invention is a kind of following radioscopy device：Indwelling is included by being obtained from mutually different both direction
In the image of the internal mark of examinee or the image of privileged site comprising the examinee, to detect with described tested
The body kinematics of person and the mark of movement or the position of the privileged site, the radioscopy device possess more than three
Camera chain, each camera chain has radioactive ray irradiation portion and to being irradiated from the radioactive ray irradiation portion and having passed through the quilt
The radiation detector that the radioactive ray of inspection person are detected, and possess camera chain selector, which exists
Two camera chains of the selection for radioscopy in the camera chain of described more than three.
On the second invention, possesses verification and measurement ratio calculating part, which calculates described more than three and take the photograph respectively
Shadow system is to the verification and measurement ratio of the position of the mark or the privileged site, and the camera chain selector is based on by the detection
The mark or the verification and measurement ratio of the position of the privileged site that rate calculating part calculates selects two for radioscopy
A camera chain.
On the 3rd invention, possesses amount of stored heat calculating part, which calculates described more than three and take the photograph respectively
The amount of stored heat of the radioactive ray irradiation portion in shadow system, the camera chain selector are based on by the amount of stored heat calculating part meter
The amount of stored heat of the radioactive ray irradiation portion calculated selects two camera chains for radioscopy.
4th invention is a kind of following radioscopy device：Indwelling is included by being obtained from mutually different both direction
In the image of the internal mark of examinee or the image of privileged site comprising the examinee, to detect with described tested
The body kinematics of person and the mark of movement or the position of the privileged site, the radioscopy device possess：First takes the photograph
Shadow system, the second camera chain, the 3rd camera chain and the 4th camera chain, first camera chain, the second photography system
System, the 3rd camera chain and the 4th camera chain each have radioactive ray irradiation portion and to from the radioactive ray irradiation portions
Irradiate and passed through the radiation detector that the radioactive ray of the examinee are detected；First power feeding section, its be used for
The radioactive ray irradiation portion supply electric power in first camera chain and second camera chain；Second power supply
Portion, it is used for the radioactive ray irradiation portion supply electric power into the 3rd camera chain and the 4th camera chain；With
And camera chain selector, it selects described first camera chain and one party in second camera chain and described the
One party in three camera chains and the 4th camera chain, is used as the camera chain for radioscopy.
On the 5th invention, possess verification and measurement ratio calculating part, the verification and measurement ratio calculating part calculate respectively first camera chain,
Second camera chain, the 3rd camera chain and the 4th camera chain are to the mark or the privileged site
Position verification and measurement ratio, the camera chain selector selected in first camera chain and second camera chain by
The high camera chain of the mark or the verification and measurement ratio of the position of the privileged site that the verification and measurement ratio calculating part calculates, and
The mark calculated by the verification and measurement ratio calculating part is selected in the 3rd camera chain and the 4th camera chain
Or the high camera chain of verification and measurement ratio of the position of the privileged site.
On the 6th invention, possess amount of stored heat calculating part, the amount of stored heat calculating part calculate respectively first camera chain,
The storage of second camera chain, the 3rd camera chain and the radioactive ray irradiation portion in the 4th camera chain
Heat, the camera chain selector are selected by the amount of stored heat in first camera chain and second camera chain
The small camera chain of the amount of stored heat of the radioactive ray irradiation portion that calculating part calculates, and in the 3rd camera chain and institute
The amount of stored heat for stating the radioactive ray irradiation portion that selection is calculated by the amount of stored heat calculating part in the 4th camera chain small is taken the photograph
Shadow system.
The effect of invention
According to the first invention, by selecting two photography systems for radioscopy in the camera chain more than three
The effect of the camera chain selector of system, can be sentenced without making radioactive ray irradiation portion and radiation detector is moved from three
On position perform radioscopy.
According to the second invention, the verification and measurement ratio based on the mark calculated by verification and measurement ratio calculating part or the position of privileged site come
Two camera chains of the selection for radioscopy, therefore can improve the accuracy of detection of mark or privileged site.
According to the 3rd invention, select to be used for based on the amount of stored heat of the radioactive ray irradiation portion calculated by amount of stored heat calculating part
Two camera chains of radioscopy, therefore the radioactive ray irradiation portion that amount of stored heat can be selected few efficiently to use radioactive ray
Irradiation portion.
According to the 4th invention, by selecting the one party and the 3rd in the first camera chain and second camera chain
One party in camera chain and the 4th camera chain is used as the camera chain selection of the camera chain for radioscopy
The effect in portion, it is saturating without making radioactive ray irradiation portion and radiation detector is moved can to perform radioactive ray from position everywhere
Depending on.In addition, for radioactive ray irradiation portion supply electric power into the first camera chain and the second camera chain can be utilized
One power feeding section and for the radioactive ray irradiation portion supply electric power into the 3rd camera chain and the 4th camera chain
This pair of of power feeding section of two power feeding sections is to the first camera chain, the second camera chain, the 3rd camera chain and the 4th
Radioactive ray irradiation portion supply electric power in camera chain, therefore halve the number of power feeding section, thus enable that device
Manufacture cost reduction.
According to the 5th invention, select what is calculated by verification and measurement ratio calculating part in the first camera chain and the second camera chain
The high camera chain of verification and measurement ratio of the position of mark or privileged site, and selected in the 3rd camera chain and the 4th camera chain
The high camera chain of the verification and measurement ratio of the position of the mark calculated by verification and measurement ratio calculating part or privileged site is selected, therefore mark can be made
Note or the accuracy of detection of privileged site improve.
According to the 6th invention, select what is calculated by amount of stored heat calculating part in the first camera chain and the second camera chain
The small camera chain of the amount of stored heat of radioactive ray irradiation portion, and in the 3rd camera chain and the 4th camera chain selection by accumulation of heat
The small camera chain of the amount of stored heat for the radioactive ray irradiation portion that calculating part calculates is measured, therefore the few radioactive ray of amount of stored heat can be selected
Irradiation portion efficiently to use radioactive ray irradiation portion.
Brief description of the drawings
Fig. 1 is the synoptic diagram of the roentgenoscope according to the present invention as radioscopy device.
Fig. 2 is the block diagram for the control system for representing the roentgenoscope involved by the first embodiment of the present invention.
Fig. 3 is to represent that it is saturating to be used for X-ray for selection in the roentgenoscope involved by first embodiment of the invention
Depending on two camera chains and the action untill proceeding by radioscopy flow chart.
Fig. 4 is the block diagram for the control system for representing the roentgenoscope involved by second embodiment of the present invention.
Fig. 5 is to represent that it is saturating to be used for X-ray for selection in the roentgenoscope involved by second embodiment of the present invention
Depending on two camera chains and the action untill proceeding by radioscopy flow chart.
Description of reference numerals
10：Examinee；11：First X-ray tube；12：Second X-ray tube；13：3rd X-ray tube；14：4th X-ray
Pipe；19：Mounting table；21：First flat-panel detector；22：Second flat-panel detector；23：3rd flat-panel detector；24：Siping City
Plate detector；28：First power feeding section；29：Second power feeding section；30：Control unit；31：Mark test section；32：Detection
Rate calculating part；33：Camera chain selector；34：Amount of stored heat calculating part.
Embodiment
In the following, embodiments of the present invention are illustrated based on attached drawing.Fig. 1 is according to the present invention to be used as radioscopy
The synoptic diagram of the roentgenoscope of device.In addition, Fig. 2 is to represent that the X-ray involved by the first embodiment of the present invention is saturating
The block diagram of the control system of view apparatus.
The roentgenoscope is with being used for the affected part X-ray irradiation to the examinee 10 in mounting table 19, electron ray etc.
Radioactive ray are used together to carry out the radiotherapy apparatus of radiation cure.In this radiation cure, it is necessary to
The body kinematics of examinee 10 and the affected part of movement irradiates radioactive ray exactly.Therefore, set near the affected part of examinee 10
Mark.Moreover, it is configured to be embedded into the internal mark of examinee 10 by radioscopy continuously to have an X-rayed, union mark
The three-dimensional positional information of note, is thus accurately detected the so-called mobile object tracking of mark.In addition, there is also following
Situation：Setting flag near the affected part of examinee 10 is substituted in, and uses the figure using privileged sites such as the tumours of examinee 10
As come replace mark unmarked tracking.
The roentgenoscope possesses the first X played function as radioactive ray irradiation portion according to the present invention and penetrates
Spool 11, the second X-ray tube 12, the 3rd X-ray tube 13 and the 4th X-ray tube 14 and conduct radiation according to the present invention
Thread detector and the first flat-panel detector 21, the second flat-panel detector 22, the 3rd flat-panel detector 23 and the 4th played function
Flat-panel detector 24.As the examinee from the X-ray for the radioactive ray that the first X-ray tube 11 irradiates on mounting table 19 is passed through
Detected after 10 by the first flat-panel detector 21.First X-ray tube 11 and the first flat-panel detector 21 form involved in the present invention
The first camera chain.From the X-ray that the second X-ray tube 12 irradiates after through the examinee 10 in mounting table 19 by the
Two flat-panel detectors 22 detect.Second X-ray tube 12 and the second flat-panel detector 22 form the second photography according to the present invention
System.Detected from the X-ray that the 3rd X-ray tube 13 irradiates after through the examinee 10 in mounting table 19 by the 3rd tablet
Device 23 detects.3rd X-ray tube 13 and the 3rd flat-panel detector 23 form the 3rd camera chain according to the present invention.From the 4th
The X-ray that X-ray tube 14 irradiates is detected after through the examinee 10 in mounting table 19 by fourth panel detector 24.The
Four X-ray tubes 14 and fourth panel detector 24 form the 4th camera chain according to the present invention.
In addition, the roentgenoscope possesses the first power feeding section 28 and the second power feeding section 29.These first electricity
28 and second power feeding section 29 of power supply unit is also referred to as high voltage device.First power feeding section 28 is to the first X-ray tube
11 or second X-ray tube 12 selectively supply tube voltage and tube current needed for X-ray irradiation.In addition, the second power supply
Portion 29 selectively supplies the 3rd X-ray tube 13 or the 4th X-ray tube 14 tube voltage and tube current needed for X-ray irradiation.
Therefore, the first X-ray tube 11 and the second X-ray tube 12 cannot X-ray irradiation at the same time, the 3rd X-ray tube 13 and the
Four X-ray tubes 14 cannot at the same time X-ray irradiation.Thus, it is impossible to while above-mentioned first camera chain and the second camera chain are used,
The 3rd camera chain and the 4th camera chain cannot be used at the same time.On the other hand, when above-mentioned mobile object tracks, for computing
Mark or privileged site (being referred to as " marking " by them below) three-dimensional positional information, it is necessary to from both direction to mark into
Row perspective.Therefore, in the roentgenoscope, it is able to carry out having used the of the first camera chain and the 3rd camera chain
Radioscopy at one position, the radioscopy for having used the second place of the first camera chain and the 4th camera chain,
Use the radioscopy at the third place of the second camera chain and the 3rd camera chain and use the second camera chain
With the radioscopy under radioscopy these four patterns at the 4th position of the 4th camera chain.
Also, the roentgenoscope possesses control unit 30, which, which possesses, performs the CPU of logical operation, preserves
There is the ROM of the operation program needed for control device and RAM of data etc. etc. is temporarily stored in control, it is whole for control device
Body.The control unit 30 and above-mentioned first flat-panel detector 21, the second flat-panel detector 22, the 3rd flat-panel detector 23 and the 4th
Flat-panel detector 24 connects.In addition, the control unit 30 is connected with above-mentioned first power feeding section, 28 and second power feeding section 29.
The control unit 30 possesses mark test section 31, which is used to take the photograph using the first camera chain, second
Two camera chains in shadow system, the 3rd camera chain and the 4th camera chain mark to detect.The mark test section 31
Such as the three-dimensional positional information marked by template matches come computing, the template matches refer to comprising by the first photography system
System, the second camera chain, the 3rd camera chain and the 4th photographing system photographs to the internal mark for being retained in examinee 10
The image of note is compared with template image set in advance.In addition, the control unit 30 possesses verification and measurement ratio calculating part 32 and photography
Systematic selection portion 33, wherein, which calculates the first camera chain, the second photography system respectively as described later
System, the 3rd camera chain and the 4th camera chain to the verification and measurement ratio of the position of mark, the camera chain selector 33 be based on by
The verification and measurement ratio of the position for the mark that the verification and measurement ratio calculating part 32 calculates comes in the first camera chain, the second camera chain, the 3rd
Two camera chains of the selection for radioscopy in camera chain and the 4th camera chain.
Then, illustrate to be used for two camera chains of radioscopy by the selection of above-mentioned roentgenoscope and proceed by
Action untill radioscopy.Fig. 3 is selected in the roentgenoscope involved by the first embodiment represented in the present invention
The flow chart of action untill selecting two camera chains for radioscopy and proceeding by radioscopy.
When performing radioscopy, first specify the first camera chain, the second camera chain, the 3rd camera chain and
A camera chain (step S11) in 4th camera chain.At this point it is possible to select and specify the first camera chain, second takes the photograph
Any camera chain in shadow system, the 3rd camera chain and the 4th camera chain, in addition can also select before adjacent
Radioscopy in a camera chain in used camera chain.By the 30 automated execution camera chain of control unit
Selection.But operator can also manually perform the selection.
Then, obtain to include with the frame frequency of 20fps~30fps or so using selected camera chain and be retained in examinee
The image (step S12) of 10 internal mark.Then, mark test section 31 as shown in Figure 2 utilizes the multiple figures got
Picture is retained in the internal mark (step S13) of examinee 10 to detect.Template matches are for example utilized in the detection of the mark.
Then, verification and measurement ratio calculating part 32 as shown in Figure 2 is calculated when detecting to mark using selected camera chain
The verification and measurement ratio (step S14) of the position of mark.
The position and direction of examinee 10 during namely based on radioscopy, mark are carried out with the breathing of examinee 10
The condition such as mobile, the verification and measurement ratio of mark are varied considerably according to the difference in the direction that radioscopy is carried out to mark.For example,
In the case of having used the mark with wire, radioscopy is carried out to mark even if the axis direction from the mark and is also difficult to
Identification mark.In addition, for radioscopy direction mark and osseous part there occurs in the case of overlapping, if without using
The X-ray of high dose is then difficult to mark.Therefore, the first camera chain, the second camera chain, the 3rd camera chain and
The verification and measurement ratio of the position of the mark of four camera chains is different.Therefore, in the radioscopy involved by the first embodiment
The structure of the verification and measurement ratio for the position for precalculating mark is employed in device.Moreover, based on the calculated value of verification and measurement ratio come from first
Select to take the photograph for two of radioscopy in camera chain, the second camera chain, the 3rd camera chain and the 4th camera chain
Shadow system.
In the verification and measurement ratio calculation process, it will can be got in mark image acquisition process (step S12) multiple
Ratio shared by image in image, can detecting to mark in mark detection process (step S13) is set to the position of mark
The verification and measurement ratio put.But when detecting mark, it can also be calculated by pattern match based on the matching rate of pattern
The verification and measurement ratio of the position of mark.Furthermore it is also possible to using the image that can detect mark ratio and pattern matching rate this two
Person calculates the verification and measurement ratio of the position of mark.
Performed for the first camera chain, the second camera chain, the 3rd camera chain and the 4th camera chain dynamic above
Make (step S15).If it is directed to the first camera chain, the second camera chain, the 3rd camera chain and the 4th camera chain institute
There is the verification and measurement ratio (step S15) that camera chain calculates the position of mark, then from the first camera chain, the second camera chain,
Two camera chains (step S16) of the selection for radioscopy in three camera chains and the 4th camera chain.
, as described above cannot be at the same time using the first camera chain and the second photography system when selecting the camera chain
System, in addition cannot use the 3rd camera chain and the 4th camera chain at the same time, therefore in the first camera chain and the second photography system
The camera chain of the verification and measurement ratio higher of the position of selected marker in system, and selected in the 3rd camera chain and the 4th camera chain
Select the camera chain of the verification and measurement ratio higher of the position of mark.Thereby, it is possible to select to have used the first camera chain and the 3rd to photograph
Radioscopy at the first position of system, used the X of the second place of the first camera chain and the 4th camera chain to penetrate
Line perspective, used radioscopy at the third place of the second camera chain and the 3rd camera chain and used second
The either mode in radioscopy these four patterns at 4th position of camera chain and the 4th camera chain.
As soon as selecting two camera chains for radioscopy, it is saturating to proceed by X-ray using these camera chains
Depending on (step S17).At this time, can be high-precision due to two high camera chains of the verification and measurement ratio for the position that have selected mark
Ground performs radioscopy.
Then, other embodiments of the present invention are illustrated.Fig. 4 is represented involved by second embodiment of the present invention
And roentgenoscope control system block diagram.In addition, pair component identical with the above embodiment add it is identical attached
Icon is remembered and omits detailed description.
In the roentgenoscope involved by above-mentioned first embodiment, based on being calculated by verification and measurement ratio calculating part 32
Mark position verification and measurement ratio come the first camera chain, the second camera chain, the 3rd camera chain and the 4th photography system
Two camera chains of the selection for radioscopy in system, on the other hand, in the X-ray involved by the second embodiment
In arrangement for perspective, based on the first X-ray tube 11, the second X-ray tube 12, the 3rd X-ray calculated by amount of stored heat calculating part 34
The amount of stored heat of pipe 13 and the 4th X-ray tube 14 is come in the first camera chain, the second camera chain, the 3rd camera chain and
Two camera chains of the selection for radioscopy in four camera chains.
That is, in the case where being consecutively carried out radioscopy, in the first X-ray tube 11, the second X-ray tube the 12, the 3rd
Heat can be accumulated in 13 and the 4th X-ray tube 14 of X-ray tube.In the case where the heat of the accumulation is more than fixation, based on peace
The viewpoint of full property and stop the irradiation of X-ray, in the first X-ray tube 11, the second X-ray tube 12, the 3rd X-ray tube 13 and the
The irradiation of X-ray is limited before the cooling of four X-ray tubes 14.Particularly in the case of with high dose rate X-ray irradiation, during unit
The heat ratio accumulated in interior first X-ray tube 11, the second X-ray tube 12, the 3rd X-ray tube 13 and the 4th X-ray tube 14
It is more that first X-ray tube 11, the second X-ray tube 12, the 3rd X-ray tube 13 and the 4th X-ray tube 14 cool down consumed heat,
Therefore the accumulation quantitative change of heat is more, limits radioscopy.Therefore, in the roentgenoscope involved by the second embodiment
In, it is contemplated that the first X-ray tube 11, the second X-ray tube 12, the 14 respective accumulation of heat of the 3rd X-ray tube 13 and the 4th X-ray tube
Measure to select two in the first camera chain, the second camera chain, the 3rd camera chain and the 4th camera chain systems of photographing
System.
As shown in figure 4, the roentgenoscope involved by the second embodiment possesses amount of stored heat calculating part 34 to replace
The verification and measurement ratio calculating part 32 of roentgenoscope involved by first embodiment.The amount of stored heat calculating part 34 has following knot
Structure：Based on the tube voltage and tube current applied by the first power feeding section 28 to the first X-ray tube 11 and the second X-ray tube 12 with
And the first X-ray tube 11 and the 2nd X are calculated from the irradiation time of 12 X-ray irradiation of the first X-ray tube 11 and the second X-ray tube
The amount of stored heat of ray tube 12, and be based on applying the 3rd X-ray tube 13 and the 4th X-ray tube 14 by the second power feeding section 29
Tube voltage and tube current and calculate from the irradiation time of 14 X-ray irradiation of the 3rd X-ray tube 13 and the 4th X-ray tube
The amount of stored heat of three X-ray tubes 13 and the 4th X-ray tube 14.
In addition it is also possible to substitute according to the irradiation time of tube current, tube voltage and X-ray to calculate the feelings of amount of stored heat
Condition, and temperature is set up respectively to the first X-ray tube 11, the second X-ray tube 12, the 3rd X-ray tube 13 and the 4th X-ray tube 14
Sensor, and penetrated according to the signal from the temperature sensor to calculate the first X-ray tube 11, the second X-ray tube 12, the 3rd X
The amount of stored heat of 13 and the 4th X-ray tube 14 of spool.
Then, illustrate as two of the roentgenoscope selection involved by the second embodiment for radioscopy
Camera chain and the action untill proceeding by radioscopy.Fig. 5 is represented involved by second embodiment of the present invention
Two camera chains of the selection for radioscopy and action untill proceeding by radioscopy in roentgenoscope
Flow chart.
In the same manner as the situation of above-mentioned first embodiment, when performing radioscopy, the first photography system is specified first
A camera chain (step S21) in system, the second camera chain, the 3rd camera chain and the 4th camera chain.
Then, the first X-ray tube 11, the second X-ray tube 12, the 3rd X-ray tube 13 and the 4th X-ray tube 14 are calculated
Amount of stored heat (step S22).Held for the first camera chain, the second camera chain, the 3rd camera chain and the 4th camera chain
More than row action (step S23).If taken the photograph for the first camera chain, the second camera chain, the 3rd camera chain and the 4th
All camera chains of shadow system calculate the first X-ray tube 11, the second X-ray tube 12, the 3rd X-ray tube 13 or the 4th X-ray
The amount of stored heat (step S23) of pipe 14, then etc. be ready to use in and proceed by the switch (not shown) of radioscopy and be pressed (step
S24)。
Then, if the switch for proceeding by radioscopy is pressed (step S24), from the first camera chain, second
Two camera chain (steps of the selection for radioscopy in camera chain, the 3rd camera chain and the 4th camera chain
S25)。
, as described above cannot be at the same time using the first camera chain and the second photography system when selecting the camera chain
System, it is impossible to while the 3rd camera chain and the 4th camera chain are used, therefore in the first camera chain and the second camera chain
The camera chain of the amount of stored heat smaller of X-ray tube is selected, and X-ray is selected in the 3rd camera chain and the 4th camera chain
The camera chain of the amount of stored heat smaller of pipe.That is, by the amount of stored heat of the amount of stored heat of the first X-ray tube 11 and the second X-ray tube 12 into
Row compares, and the first camera chain is selected in the amount of stored heat smaller of the first X-ray tube 11, in addition, in the storage of the second X-ray tube 12
The second camera chain is selected during heat smaller.Similarly, by the storage of the amount of stored heat of the 3rd X-ray tube 13 and the 4th X-ray tube 14
Heat is compared, and the 3rd camera chain is selected in the amount of stored heat smaller of the 3rd X-ray tube 13, in addition, in the 4th X-ray tube
The 4th camera chain is selected during 14 amount of stored heat smaller.Thereby, it is possible to select to have used the first camera chain and the 3rd photography system
Radioscopy at the first position of system, the X-ray for having used the second place of the first camera chain and the 4th camera chain
Have an X-rayed, used radioscopy at the third place of the second camera chain and the 3rd camera chain and used second to take the photograph
The either mode in radioscopy these four patterns at 4th position of shadow system and the 4th camera chain.
After it have passed through selection process of the selection for two camera chains of radioscopy, it is using these photographies
System proceeds by radioscopy (step S26).At this time, two camera chains of the amount of stored heat smaller of X-ray tube are selected, therefore
It need not be used for the time for cooling down X-ray tube, can more efficiently use X-ray tube.
In addition, in the above-described embodiment, possess first including the first X-ray tube 11 and the first flat-panel detector 21 and take the photograph
13 and of the second camera chain including the 3rd X-ray tube of shadow system including the second X-ray tube 12 and the second flat-panel detector 22
3rd camera chain of the 3rd flat-panel detector 23 and the 4th including the 4th X-ray tube 14 and fourth panel detector 24 take the photograph
This four camera chains of shadow system, but these camera chains at least possess three.That is, as long as with lower structure：Tool
The camera chain with X-ray tube and flat-panel detector of standby more than three, and can be more than these three camera chain
Two camera chains of the middle selection for radioscopy.
In addition, employ in the above-described embodiment with lower structure：Using the first power feeding section 28 to the first X-ray tube
11 or second X-ray tube 12 selectively supply tube voltage and tube current needed for X-ray irradiation, and supplied using the second electric power
The tube voltage and pipe electricity needed for X-ray irradiation are selectively supplied to the 3rd X-ray tube 13 or the 4th X-ray tube 14 to portion 29
Stream.It by using this structure, can halve the number of power feeding section, the manufacture cost reduction of device can be made.But
First X-ray tube 11, the second X-ray tube 12, the 3rd X-ray tube 13 and 14 each X-ray tube of the 4th X-ray tube can also be matched somebody with somebody
If power feeding section.In the case where employing this structure, can be taken the photograph from the first camera chain, the second camera chain, the 3rd
Arbitrary two camera chains are selected to perform radioscopy in shadow system and the 4th camera chain.
In addition, in the above-described embodiment, the verification and measurement ratio of the position based on mark or amount of stored heat select camera chain, but
Camera chain can also be selected based on both.In addition, in the feelings that there is the camera chain that can not be used due to failure etc.
Under condition, the camera chain for radioscopy is selected while the camera chain can also be removed.
Also, as the above embodiment, penetrated as according to the present invention as the X that radiation detector plays function
Thread detector, has used flat-panel detector, but can also use X-ray detector and other radiation such as image intensifier (I.I.)
Thread detector.
Claims (6)
1. a kind of radioscopy device, by being obtained from mutually different both direction comprising being retained in the internal of examinee
The image of the image of mark or privileged site comprising the examinee, is moved to detect with the body kinematics of the examinee
The dynamic mark or the position of the privileged site, the radioscopy device be characterized in that,
Possesses the camera chain of more than three, each camera chain has radioactive ray irradiation portion and to being shone from the radioactive ray irradiation portion
The radiation detector that the radioactive ray of the examinee are detected is penetrated and has passed through,
And possesses camera chain selector, which selects to be used in the camera chain of described more than three
Two camera chains of radioscopy.
2. radioscopy device according to claim 1, it is characterised in that
Possess verification and measurement ratio calculating part, the verification and measurement ratio calculating part calculate respectively the camera chain of described more than three to the mark or
The verification and measurement ratio of the position of the privileged site,
The camera chain selector is based on the mark or the privileged site calculated by the verification and measurement ratio calculating part
The verification and measurement ratio of position selects two camera chains for radioscopy.
3. radioscopy device according to claim 1, it is characterised in that
Possesses amount of stored heat calculating part, which calculates the radiation in the camera chain of described more than three respectively
The amount of stored heat of line irradiation portion,
Amount of stored heat of the camera chain selector based on the radioactive ray irradiation portion calculated by the amount of stored heat calculating part
To select two camera chains for radioscopy.
4. a kind of radioscopy device, by being obtained from mutually different both direction comprising being retained in the internal of examinee
The image of the image of mark or privileged site comprising the examinee, is moved to detect with the body kinematics of the examinee
The dynamic mark or the position of the privileged site, the radioscopy device are characterized in that possessing：
First camera chain, the second camera chain, the 3rd camera chain and the 4th camera chain, first camera chain, be somebody's turn to do
Second camera chain, the 3rd camera chain and the 4th camera chain each have radioactive ray irradiation portion and to being put from described
Irradiate and passed through the radiation detector that the radioactive ray of the examinee are detected in radiation exposure portion；
First power feeding section, its described radioactive ray being used for into first camera chain and second camera chain shine
Penetrate portion's supply electric power；
Second power feeding section, its described radioactive ray being used for into the 3rd camera chain and the 4th camera chain shine
Penetrate portion's supply electric power；And
Camera chain selector, it selects described first camera chain and the one party in second camera chain and described
3rd camera chain and the one party in the 4th camera chain, are used as the camera chain for radioscopy.
5. radioscopy device according to claim 4, it is characterised in that
Possess verification and measurement ratio calculating part, the verification and measurement ratio calculating part calculate respectively first camera chain, second camera chain,
3rd camera chain and the 4th camera chain to the verification and measurement ratio of the position of the mark or the privileged site,
The camera chain selector is selected by the verification and measurement ratio in first camera chain and second camera chain
The high camera chain of the mark or the verification and measurement ratio of the position of the privileged site that calculating part calculates, and the described 3rd
The mark or described specific calculated by the verification and measurement ratio calculating part is selected in camera chain and the 4th camera chain
The high camera chain of the verification and measurement ratio of the position at position.
6. radioscopy device according to claim 4, it is characterised in that
Possess amount of stored heat calculating part, the amount of stored heat calculating part calculate respectively first camera chain, second camera chain,
The amount of stored heat of 3rd camera chain and the radioactive ray irradiation portion in the 4th camera chain,
The camera chain selector is selected by the amount of stored heat in first camera chain and second camera chain
The small camera chain of the amount of stored heat of the radioactive ray irradiation portion that calculating part calculates, and in the 3rd camera chain and institute
The amount of stored heat for stating the radioactive ray irradiation portion that selection is calculated by the amount of stored heat calculating part in the 4th camera chain small is taken the photograph
Shadow system.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610927350.1A CN108013885B (en) | 2016-10-31 | 2016-10-31 | Radioscopy apparatus |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610927350.1A CN108013885B (en) | 2016-10-31 | 2016-10-31 | Radioscopy apparatus |
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Cited By (1)
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|---|---|---|---|---|
| EP4171384A4 (en) * | 2020-06-25 | 2024-03-06 | Australian Lung Health Initiative Pty Ltd | Imaging device and method for multiple image acquisition |
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