CN106264600B - Elasticity distribution video generation system - Google Patents
Elasticity distribution video generation system Download PDFInfo
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- CN106264600B CN106264600B CN201510252550.7A CN201510252550A CN106264600B CN 106264600 B CN106264600 B CN 106264600B CN 201510252550 A CN201510252550 A CN 201510252550A CN 106264600 B CN106264600 B CN 106264600B
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Abstract
The present invention provides a kind of elasticity distribution video generation system, a spatial elastic to establish out an organic media is distributed image, comprising sending and receiving system and processing module, the sending device for sending and receiving system sends out a ultrasonic to a transmission position of organic media, make to generate a shear wave in organic media, generates a displacement signal so as to receiving location triggered in the one of organic media.Reception device sends out a trigger signal according to displacement signal.Processing module, which receives trigger signal, foundation transmitting and received time and sends and receives position, calculates separately out shear wave traveling time and alternate position spike, so as to calculating shear wave travel speed.It sends and receives system and is executed above-mentioned steps by different location of the triggering to organic media, establish out spatial elastic distribution image so as to the shear wave travel speed according to distinct locations.The hardness situation of entire organic media inner space can be thus learnt really, and then is increased and made a definite diagnosis accuracy.
Description
Technical field
The present invention relates to a kind of elasticity distribution video generation system, in particular to a kind of different location in organic media is sent out
It penetrates ultrasonic and receives displacement signal and establish out the elasticity distribution video generation system of elasticity distribution image.
Background technique
Due to the development and the progress in epoch of science and technology, it has been widely used in people's by the technology that ultrasonic generates image
In life, for example, image, ultrasonic shadow are cured compared to clinically used Medical Imaging System such as X-ray, CT, MRI or core
As have low price, non-intrusion type, radiationless property danger, instant video, secondary millimeter (sub mm) grade aerial image resolution,
Portability and the advantages that flow velocity detecting can be carried out, therefore ultrasound video is almost widely used in the diagnosis of clinical departments
On.
Ultrasonic image-forming principle is that the image of body to be measured is rebuild using the characteristic of sound scattering and reflection, specific next
It says, ultrasonic imaging is mainly entered in human body using probe transmitting sound wave, and interacts work with the intracorporal various media of people
With, and using the signal returned as the foundation for rebuilding image in human body.
However, the illness of such as cancer, cirrhosis, vascular diseases, is formed by scattering and reflection is poor with health tissues
Different very little causes often to have in the case where ultrasonic is imaged and fails to pinpoint a disease in diagnosis, mistaken diagnosis or is difficult to the situation made a definite diagnosis.In order to which the diagnosis for improving cancer is accurate
Degree, the prior art propose the imaging method of elastic image, and ultrasound scanner head is mainly urged to organic media (as organized by it
Cell) surface oppressed, be subjected to displacement the tissue inside organic media, and according to because compressing caused by organic media exist
The echo-signal of front and back is compressed to estimate the displacement of compression direction, seeks space differentiation amount and the deformation of displacement to carry out image
Change, and then generate above-mentioned elastic image, can be seen that hardness (such as deformation, elasticity system of organic media using this elasticity image
Number), and then increase the accuracy made a definite diagnosis.
However, the prior art and a kind of device that can carry out elastogram to organic media completely can not be provided, thus nothing
Method learns the hardness situation of entire organic media, therefore the prior art still has improved space.
Summary of the invention
In view of the framework for being limited to existing elastogram device, generally there is the hardness that can not learn entire organic media
The problem of situation.Edge this, present invention generally provides a kind of elasticity distribution video generation systems, mainly in the different positions of organic media
It sets transmitting ultrasonic and receives displacement signal and establish out elasticity distribution image, to solve the above problem.
Based on above-mentioned purpose, technical way of the present invention provides a kind of elasticity distribution video generation system,
To establish out an organic media a spatial elastic be distributed image, and include one send and receive system and one processing mould
Block.Sending and receiving system includes a sending device and a reception device, and sending device is for a first time to organic Jie
One first transmission position of matter sends out a ultrasonic, so as to making to generate a shear wave in organic media, and shear wave Yu Yi
Two times received location triggered in the one first of organic media and generate one first displacement signal.Reception device is for receiving the first displacement
Signal, and a trigger signal is sent out according to the first displacement signal.Processing module is electrically connected at the hair for the system of sending and receiving
Device and reception device are sent, to receive trigger signal, calculates one first shear wave row with the second time according to first time
Sending position into the time and according to first, with the first reception position to calculate a first position poor, so as to according to the first shearing
Wave traveling time and first position difference calculate one first shear wave travel speed.
Wherein, this sends and receives system and is sent position biography to the one second of the organic media in the third time by triggering
It sends out the ultrasonic, and is received in one the 4th time by triggering the one second of the organic media and receives caused by position one the
Two displacement signals, so as to making the processing module calculate resulting one second shear wave row according to the third time and the 4th time
A second position difference into time and the second transmission position and the second reception position calculates the traveling of one second shear wave
Speed, and spatial elastic distribution shadow is established out according to the first shear wave travel speed and the second shear wave travel speed
Picture.
Wherein, in the preferred embodiment of the attached technological means of above-mentioned elasticity distribution video generation system, also comprising a rotation
Rotary device, rotating device are electrically connected at processing module, and the system of sending and receiving is set to rotating device, and at rotating device
Reason module triggering rotates angle along a direction of rotation and makes the sending device for sending and receiving system and reception device point
It is not moved to the second transmission position and receives position with second.
In addition, sending and receiving system is an one-dimensional array probe, sending device and reception device are respectively one-dimensional array
The ultrasonic of probe sends probe and ultrasonic receiving transducer.
In addition, processing module repeated trigger rotating device rotates N number of rotation angle along direction of rotation, so as to being somebody's turn to do according to N number of
First shear wave travel speed and N number of second shear wave travel speed establish out spatial elastic distribution image.
Wherein, shear wave wavelength of the first position difference less than one times, shear wave wavelength of the second position difference less than one times.
Wherein, it in the preferred embodiment of the attached technological means of above-mentioned elasticity distribution video generation system, sends and receives
System is a two-dimensional array probe, and sends and receives system and be subject to processing module triggering with different probes in the second transmission position
Ultrasonic is sent out, and position is received in second with different probes and receives second displacement signal.
In addition, two-dimensional array probe is a cross array probe.
Wherein, shear wave wavelength of the first position difference less than one times, shear wave wavelength of the second position difference less than one times.
Wherein, in the preferred embodiment of the attached technological means of above-mentioned elasticity distribution video generation system, sending device with
Reception device is all a two-dimensional array probe, and sending device is subject to processing module triggering and sends position hair in second with different probes
Ultrasonic is sent out, reception device is subject to processing module triggering and receives position reception second displacement signal in second with different probes.
Wherein, shear wave wavelength of the first position difference less than one times, shear wave wavelength of the second position difference less than one times.
Through the invention after the technical way of used elasticity distribution video generation system, due to can be in organic Jie
The different location transmitting ultrasonic and reception displacement signal of matter, thus the hardness of entire organic media inner space can be learnt really
Situation, and then increase and make a definite diagnosis accuracy, thus can effectively solve problem of the prior art.
Specific embodiment of the present invention will be further described by examples and drawings below.
Detailed description of the invention
Fig. 1 is the block schematic diagram for showing the elasticity distribution video generation system of the first preferred embodiment of the invention；
Fig. 2 is the stereoscopic schematic diagram for showing the elasticity distribution video generation system of the first preferred embodiment of the invention；
Fig. 3 is to show the elasticity distribution video generation system of the first preferred embodiment of the invention adjacent to the upper of organic media
View；
Fig. 4 is to show the elasticity distribution video generation system of first preferred embodiment of the invention adjacent to the of organic media
One sends the side view that position receives position with first；
Fig. 5 is to show the elasticity distribution video generation system of first preferred embodiment of the invention adjacent to the of organic media
Two send the side view that position receives position with second；
Fig. 6 is the schematic diagram for showing the image reconstruction of the first preferred embodiment of the invention；
Fig. 6 A is the schematic diagram for showing the spatial elastic distribution image of the first preferred embodiment of the invention；
Fig. 7 is the top view for showing the elasticity distribution video generation system of the second preferred embodiment of the invention；
Fig. 8 is the schematic diagram for showing the elasticity distribution video generation system of third preferred embodiment of the present invention；
Fig. 9 is the schematic diagram for showing the elasticity distribution video generation system of the 4th preferred embodiment of the invention；
Figure 10 is the schematic diagram for showing the elasticity distribution video generation system of the 5th preferred embodiment of the invention；And
Figure 11 is the schematic diagram for showing the elasticity distribution video generation system of the 6th preferred embodiment of the invention.
Description of symbols:
1,1a, 1b, 1c, 1d, 1f elasticity distribution video generation system
11,11a, 11d, 11f send and receive system
111,111a, 111b, 111c, sending device
111d、111e、111f
1111b, 1111f, 1112f probe
112,112a, 112b, 112c, reception device
112d、112e、112f
1121b, 1121f, 1122f probe
12,12d, 12f processing module
13 rotating devices
131 rotation accommodating devices
132 rotating bodies
2 organic medias
The first position d1, d2, d3, d5 is poor
The second position d4, d6 is poor
W1 ultrasonic
W2 shear wave
The first displacement signal of W3
W4 ultrasonic
W5 second displacement signal
S1 trigger signal
P1 first sends position
P2 first receives position
P3 second sends position
P4 second receives position
The direction of rotation L1, L2, L3, L4
Specific embodiment
Since in elasticity distribution video generation system provided by the present invention, a combination thereof embodiment is too numerous to enumerate, therefore
This is no longer repeated one by one, is only enumerated four preferred embodiments and is illustrated.
It is the elasticity distribution video generation system for showing the first preferred embodiment of the invention also referring to Fig. 1 to Fig. 5, Fig. 1
The block schematic diagram of system, Fig. 2 are the three-dimensional signal for showing the elasticity distribution video generation system of the first preferred embodiment of the invention
Figure, Fig. 3 are top view of the elasticity distribution video generation system adjacent to organic media for showing the first preferred embodiment of the invention,
Fig. 4 is to show that the elasticity distribution video generation system of the first preferred embodiment of the invention sends position adjacent to the first of organic media
The side view for receiving position with first is set, Fig. 5 is the elasticity distribution video generation system for showing the first preferred embodiment of the invention
The side view that position receives position with second is sent adjacent to the second of organic media.
As shown, the elasticity distribution video generation system 1 of present pre-ferred embodiments is to establish out an organic media 2
A spatial elastic be distributed image, and this organic media 2 may be, for example, histocyte, blood vessel or organ (such as the liver of organism
It is dirty), but it is not limited to this.
Elasticity distribution video generation system 1 sends and receives system 11, a processing module 12 and a rotating dress comprising one
13 are set, system 11 is sent and received adjacent to organic media 2 and (as shown in Figure 4) is set, and includes a sending device 111 and one
Reception device 112, furthermore, it is understood that the first preferred embodiment of the invention only includes that a sending device 111 and a reception fill
112 are set, and sending device 111 is a ultrasonic transmitting probe, reception device 112 is then receiving transducer, and preferably, transmission fill
The centre frequency for setting 111 is 20MHz, and the centre frequency of reception device 112 is 40MHz, and reception device 112 generally can again electrically
It is connected to a ultrasonic system (not shown).
Processing module 12 is electrically connected at the sending device 111 and reception device 112 of the system of sending and receiving 11, can be upper
The ultrasonic system stated, general circuit or chip with processing function, may be, for example, central processing unit (Central
Processing Unit, CPU), graphics processor (Graphics Processing Unit, GPU) or OverDrive Processor ODP
(Accelerated Processing Unit, APU), and processing module 12 can be integrated in reception device 112, but can also be another
It is set in such as tablet computer, desktop computer electronic device outside.
Rotating device 13 is electrically connected at processing module, rotates accommodating device 131 and a rotating body 132 comprising one,
Rotating body 132 is rotatably received in rotation accommodating device 131, and is linked to the horse being equipped in rotation accommodating device 131
It reaches, and above-mentioned sending device 111 and reception device 112 are set to rotating body 132, such as chimeric mode can be used,
But it is without being limited thereto in other embodiments.
When user is intended to using elasticity distribution video generation system 1 provided by the first preferred embodiment of the invention, it can lead to
Cross processing module 12 send and receive system 11 sending device 111 send out a ultrasonic W1 (can by key or its
He triggers mode), in first preferred embodiment of the invention, sending device 111 is adjacent to the surface of organic media 2, and in one
It is triggered at the first time and sends out ultrasonic W1, that is to say, that sending device 111 is in first time to the 1 of organic media 2 the
One transmission position P1 sends out ultrasonic W1 (longitudinal transmitting), makes to generate a shear wave W2 (lateral transport) in organic media 2, and
Shear wave W2 receives position P2 triggering in one first in organic media 2 in one second time and generates one first displacement signal W3
(longitudinal transmitting).
And reception device 112 is adjacent to sending device 111, and in fact reception device 112 is to be located at above-mentioned first to receive
It (is received on the same vertical plane of position P2 with first) on the P2 of position, therefore receives position P2 with first in the second time and receive first
Displacement signal W3, and a trigger signal S1 is sent out according to the first displacement signal W3.
Wherein, one is needed to be mentioned that herein, sending device 111 is set to the first transmission position P1, and reception device 112 is arranged
Position P2 is sent in second, and first sends the transmission position P2 of position P1 and second at a distance of a first position difference d1, in addition, shearing
Wave W2 has a shear wave wavelength (not shown), and shear wave wavelength is defined as λ, and in all preferred embodiments of the present invention, the
One alternate position spike d1 is both less than one times of shear wave wavelength X, that is, d1 < λ, and more precisely, set by sending device 111
Alternate position spike between position set by position and reception device 112 is all necessarily less than one times of shear wave wavelength, and upper rheme
The definition for setting difference is linear distance, and is only illustrated in present pre-ferred embodiments with two-dimensional surface.
After processing module 12 receives trigger signal S1, position P1 is sent according to first time and the second time and first
One first shear wave traveling time is calculated separately out with the first reception position P2 and a first position is poor, and specifically, first cuts
Reeb traveling time is to subtract the second time at the first time, and first position difference d1 refers to that coordinate where the first reception position P2 subtracts
First sends coordinate where the P1 of position, and the distance so as to calculating, and the first reception position P2 and the first transmission position P1 is
Position is in same level, so that the calculated alternate position spike of institute is to move horizontally distance.First is calculated in processing module 12 to cut
Reeb traveling time calculates one first according to the first shear wave traveling time and first position difference d1 with after first position difference d1
Shear wave travel speed, calculation are, for example, first position difference d1 divided by the first shear wave traveling time.
After processing module 12 calculates the first shear wave traveling time, the first shear wave traveling time can be first kept in, and
The motor rotation of the rotation accommodating device 131 of rotating device 13 is triggered, so that rotating body 132 is along direction of rotation L rotation one
It rotates angle (direction of rotation in present pre-ferred embodiments refers to spin, but without being limited thereto in other embodiments), so that sending
One second transmission position P3 and one second is respectively moved to the sending device 111 and reception device 112 of reception system 11 to receive
Position P4, and in the first preferred embodiment of the invention, direction of rotation L is clockwise direction (as shown in Figure 3), and rotates angle and be
90 degree.In addition, second sends position since sending device 111 and reception device 112 are to be fixed on rotating body 132
Second position difference (not shown) where P3 receives position P4 with second is equal with first position difference d1, so that second position difference
Shear wave wavelength less than one times.
It is finished in the rotation of rotating body 132 and sending device 111 and reception device 112 is made to be respectively moved to the second transmission position
After setting the reception of P3 and second position P4, processing module 12 sends and receives the sending device 111 of system 11 when a third
Between ultrasonic W4 is sent out to the second of organic media 2 the transmission position P3, and trigger reception device 112 and received in one the 4th time
(the displacement of second displacement signal W5 and first of a second displacement signal W5 caused by the P4 of position is received in the second of organic media 2
The producing method of signal W3 is identical, repeats no more), so as to making processing module 12 calculate gained according to third time and the 4th time
One second shear wave traveling time and a second position difference of the second transmission position and the second reception position calculate one the
Two shear wave travel speeds (identical as the calculation of the first shear wave travel speed, to repeat no more), and calculating second
After shear wave travel speed, processing module 12 calls the first shear wave travel speed, so as to according to the first shear wave travel speed
Distribution of the above-mentioned shear wave travel speed in organic media 2 in space is established out with the second shear wave travel speed, goes forward side by side one
Step is converted to the spatial distribution of coefficient of elasticity, and then establishes out spatial elastic distribution image (namely spatial elastic distribution image
For the spatial distribution image of coefficient of elasticity).
One is needed to be mentioned that herein, above-mentioned first sends position P1, first receive position P2, second send position P3 and the
Refer to position in organic media 2 for two reception position P4 narrow senses, but it is outer perpendicular to having also to can refer to organic media 2 in broad terms
Position in machine medium 2 is chatted bright hereby.In addition, although rotation angle is 90 degree, true in the first preferred embodiment of the invention
On can also be 1 degree or other angles, and the lasting rotation of repeated trigger rotating device 13, that is to say, that in other embodiments, can hold
360 degree of complete circular scans of row, and then 360 degree of spatial elastic distribution image is established out, and above-mentioned technology can be in processing mould
It is equipped with a rotation program in block 12, realizes that (such as 1 degree of every rotation is touched for the purpose of control rotation angle by setting rotation program
Hair sending device 111 and reception device 112 send ultrasonic respectively and receive displacement signal, until rotation just stops to original position
Triggering rotation, generates N group data so as to doing the measurement of N number of angle to organic media 2, and is to have N number of first in N group data
Shear wave travel speed and N number of second shear wave travel speed, and built according to the distribution of above-mentioned data reconstruction coefficient of elasticity
Vertical spatial elastic out is distributed image).
In addition, repeating in other embodiments and sending ultrasonic W1 in same position and receive the first displacement signal W3, example
It is repeated after receiving the first displacement signal W3 40 times with the frequency of 2000Hz in this way, just triggers rotating device 13 and rotate to preset
Next angle.In addition, other than above-mentioned round spin-scan mode can be performed, track can also be used in other embodiments
Reach and advance along track and be scanned in a manner of rectangular, round or other polygons travelings, and may be set to every movement
One distance triggers and sends ultrasonic, that is, may be set to execute and send and receive for M times that (sending and receiving for this M times can be one
Completion is executed in total distance), and then spatial elastic distribution shadow is established out according to the distribution of above-mentioned data reconstruction coefficient of elasticity
Picture.
It is the signal for showing the image reconstruction of the first preferred embodiment of the invention further referring to Fig. 6 and Fig. 6 A, Fig. 6
Figure, Fig. 6 A are the schematic diagram for showing the spatial elastic distribution image of the first preferred embodiment of the invention.As shown, being cut with first
For the travel speed of Reeb, after processing module 12 receives trigger signal S1, the target of the first shear wave travel speed will be calculated
After range lattice point, the velocity amplitude of each lattice point can be solved in the way of matrix, wherein L* Δ s=Δ t, L is each
Under a angle, the length of each lattice point of the path traversal of shear wave W2 traveling, that is,
The distance that position P1 to first receives position P2, and line segment are sent for firstLength can disassemble into its pass through it is each
The length summation of a lattice point.
Δ s is the inverse of each lattice point velocity amplitude, and Δ t is to calculate time difference ranging (Time- by the shear wave signal received
Of-flight the time value (at the first time with the time difference of the second time, i.e. the first shear wave traveling time)) obtained.Therefore
Assuming that K angle of scanning, and target zone is divided into M*N lattice, then L can be the matrix of a K*MN, and Δ s can be the row of MN*1
Vector, Δ t can be the row vectors of K*1.
In other preferred embodiments, if every degree run-down, that is, K is 360, and due to sending device 111 with
Reception device 112 is to make rotary scanning around the fixed center of circle, and the path that shear wave W2 advances is the diameter of different angle, because
This L can be acquired directly by calculating geometrically, and Δ t can be acquired by the data tested, so calculating via inverse matrix
It obtains Δ s, also just learns that shear wave speed in the distribution in scanning range, that is, as shown in Figure 6A, reconstructs the speed point come
In Butut (spatial elastic distribution image), it can be seen that the shear wave VELOCITY DISTRIBUTION in the circular scope of scanning, illuminometer therein
Show to be speed, brighter expression speed is faster (whiter table is brighter in figure), that is, the elasticity number in the region is bigger.
Referring to Fig. 7, Fig. 7 is the upper view for showing the elasticity distribution video generation system of the second preferred embodiment of the invention
Figure, as shown in fig. 7, in elasticity distribution video generation system 1a, the place different from the first preferred embodiment be only that transmission with
Reception system 11a is an one-dimensional array probe, and sending device 111a and reception device 112a are respectively the super of one-dimensional array probe
Sound wave sends probe and ultrasonic receiving transducer, such as sending device 111a is the probe of the leftmost side in figure, reception device 112a
It is then the probe of the rightmost side, but the first position difference d2 where sending device 111a and reception device 112a must be less than one times
Shear wave wavelength, in addition, second position difference (not shown) also needs the shear wave wavelength less than one times (with sending device 111a in figure
Centre distance difference with reception device 112a is first position difference d2, can be the range difference of most two sides in other embodiments), remaining
It is identical as the first preferred embodiment, it repeats no more.Although in addition, the first preferred embodiment of the invention and the second preferred embodiment
By the way of triggering motor rotation, that is, by the way of mechanical scan, but electron scanning can be used in other embodiments
Mode, will be described under.
Referring to Fig. 8, Fig. 8 is the signal for showing the elasticity distribution video generation system of third preferred embodiment of the present invention
Figure, as shown in figure 8, the place different from the first preferred embodiment is, in elasticity distribution video generation system 1b, sending device
111b and reception device 112b is one-dimensional array probe, and can all be rotated along direction of rotation L2, and the spy in sending device 111b
Head 1111b can be used to send out ultrasonic, and the probe 1121b in reception device 112b can be used to receive second displacement signal,
The first preferred embodiment of Yu Junyu is identical, repeats no more.
Referring to Fig. 9, Fig. 9 is the signal for showing the elasticity distribution video generation system of the 4th preferred embodiment of the invention
Figure, as shown in figure 9, sending device 111c and reception device 112c are similarly single probe, it is different from the first preferred embodiment
Place is, in elasticity distribution video generation system 1c, sending device 111c be controlled to it is static in the original location, and receive dress
Setting 112c can move along direction of rotation L3 or direction of rotation L4, preferably, reception device 112c can have with sending device 111c
Moving in rotation is (after linear distance and reception device 112c are mobile between reception device 112c and sending device 111c under the angle of limit
Position and sending device 111c between linear distance angle), and be individually controlled send ultrasonic and receive second displacement letter
Number, in addition, sending device 111c can also still be moved along direction of rotation L4 and be rotated by 360 ° (reception device 112c also synchronize with
Sending device 111c is so mobile).
Referring to Fig. 10, Figure 10 is the signal for showing the elasticity distribution video generation system of the 5th preferred embodiment of the invention
Figure, as shown in Figure 10, the place different from the first preferred embodiment is, in elasticity distribution video generation system 1d and does not include
Rotating device, and sending and receiving system 11d is a two-dimensional array probe, and the system 11d of sending and receiving is subject to processing module 12d
Triggering and ultrasonic (not shown) is sent out in the second transmission position (not shown) with different probes, and with different probes
Position (not shown) is received in second and receives second displacement signal (not shown), that is to say, that first sends position (not shown)
Ultrasonic is sent with the sending device 111d of the leftmost side, the first reception position (not shown) is connect with the reception device 112d of the rightmost side
Second displacement signal is received, second, which sends position (not shown), sends ultrasonic with sending device 111e, and second receives position, and (figure is not
Show) second displacement signal is received with reception device 112e, that is to say, that in the third embodiment not by the way of mechanical scanning
But by the way of electron scanning, in addition, the first position difference d3 of sending device 111d and reception device 112d is less than one times
Shear wave wavelength (the centre distance difference in figure using sending device 111d and reception device 112d as first position difference d3, other
Can be the range difference of most two sides in embodiment), the second position difference d4 of sending device 111e and reception device 112e are less than one times
Shear wave wavelength (the centre distance difference in figure using sending device 111e and reception device 112e as second position difference d4, other
Can be the range difference of most two sides in embodiment), remaining is identical as the first preferred embodiment, therefore repeats no more.In addition, above-mentioned
The system 11d of sending and receiving may further be cross array probe (not shown, i.e. two one-dimensional arrays probe in Fig. 7
Right-angled intersection each other), but it is not limited to this.
In addition, needing one to be mentioned that herein, a transmitting/receiving program, that is, processing module can be equipped in processing module 12d
After reception device 112d receives displacement signal, processing module 12d sends and receives according to transmitting/receiving program is 12d
A probe in system 11d sends ultrasonic as sending device 111e, and sends and receives the probe in system 11d
Displacement signal is received as reception device 112e, and then establishes out the travel speed of shear wave in each space, and establish out
Spatial elastic is distributed image.
Figure 11 is please referred to, Figure 11 is the signal for showing the elasticity distribution video generation system of the 6th preferred embodiment of the invention
Figure, as shown in figure 11, the place different from the first preferred embodiment is, does not wrap equally in elasticity distribution video generation system 1f
Containing rotating device, and the sending device 111f and reception device 112f that send and receive system 11f are a two-dimensional array probe,
And the first transmission position can be by spy different in sending device 111f from ultrasonic (not shown) transmitted by the second transmission position
(such as probe 1111f, 1112f respectively in figure) transmitted by head, similarly, first receives position can with the second reception position
First displacement signal (not shown) and the is received by different probe (such as be respectively probe 1121f, 1122f) in figure respectively
Two displacement signal (not shown), that is to say, that the place different from the first preferred embodiment is to send and receive probe not
With (but send the first position difference d5 where probe 1111f and receiving transducer 1112f must shear wave wavelength less than one times,
Send second position difference d6 where probe 1112f and receiving transducer 1122f must shear wave wavelength less than one times, and in figure
Using the centre distance difference for sending probe 1111f and receiving transducer 1112f as first position difference d5, sends probe 1112f and receive
The centre distance difference of probe 1122f is second position difference d6, can be the range difference of most two sides in other embodiments), first preferably
It is same (being all sending device 111) that embodiment first, which sends position and sends probe used by position with second, and first connects
Receiving position and receiving probe used by position with second is also same (being all reception device 112).
In addition, needing one to be mentioned that herein, a transmitting/receiving program, that is, processing module can be equipped in processing module 12f
12f often in reception device 112f in one probe receive displacement signal after, according to transmitting/receiving program triggering send dress
Another probe set in 111f sends ultrasonic, and triggers another probe in reception device 112f to receive displacement letter
Number, and then the travel speed of shear wave in each space is established out, and establish out spatial elastic distribution image.
In summary, using after elasticity distribution video generation system provided by the present invention, due to can Yu Youji
The different location transmitting ultrasonic and reception displacement signal of medium, thus the hard of entire organic media inner space can be learnt really
Degree situation, and then increase and make a definite diagnosis accuracy, thus can effectively solve problem of the prior art.
Pass through the above detailed description of preferred embodiments, it would be desirable to feature and spirit of the invention are more clearly described, and
Not scope of the invention is limited with above-mentioned disclosed preferred embodiment.On the contrary, the purpose is to wish
Various changes can be covered and have being arranged in the scope of the scope of the patents to be applied of the invention of equality.
Claims (10)
1. a kind of elasticity distribution video generation system, the spatial elastic to establish out an organic media is distributed image, special
Sign is, includes:
One sends and receives system, includes:
One sending device sends out a ultrasonic for one first transmission position of the first time to the organic media, so as to
Make to generate a shear wave with a shear wave wavelength in the organic media, and the shear wave in one second time in organic Jie
The one first of matter receives location triggered and generates one first displacement signal；And a reception device, for receiving first displacement signal,
And a trigger signal is sent out according to first displacement signal；And
One processing module is electrically connected at the sending device for sending and receiving system and the reception device, to receive this
Trigger signal, calculated at the first time with second time according to this one first shear wave traveling time and according to this first
Send position and to calculate a first position poor for the first reception position, so as to according to the first shear wave traveling time with this
One alternate position spike calculates one first shear wave travel speed；
Wherein, this sends and receives system and is sent out by triggering in one second transmission position of the third time to the organic media
The ultrasonic, and be received in the one second of the organic media in one the 4th time by triggering and receive a second caused by position
Shifting signal, when advancing so as to making the processing module calculate resulting one second shear wave according to the third time and the 4th time
Between and this second transmission position and this second reception position a second position difference calculate one second shear wave advance speed
Degree, and spatial elastic distribution image is established out according to the first shear wave travel speed and the second shear wave travel speed.
2. elasticity distribution video generation system as described in claim 1, which is characterized in that also include a rotating device, the rotation
Rotary device is electrically connected at the processing module, this sends and receives system and is set to the rotating device, and the rotating device is by this
Processing module triggering rotates angle along a direction of rotation and connects the sending device for sending and receiving system with this
Receiving apparatus is respectively moved to the second transmission position and the second reception position.
3. elasticity distribution video generation system as claimed in claim 2, which is characterized in that it is one by one that this, which sends and receives system,
Array probe is tieed up, the sending device and the reception device are respectively that the ultrasonic of one-dimensional array probe sends probe and ultrasonic
Receiving transducer.
4. elasticity distribution video generation system as claimed in claim 2, which is characterized in that the processing module repeated trigger rotation
Rotary device rotates the N number of rotation angle along the direction of rotation, so as to according to N number of first shear wave travel speed and it is N number of this
Two shear wave travel speeds establish out spatial elastic distribution image.
5. elasticity distribution video generation system as claimed in claim 2, which is characterized in that the first position difference is less than one times
The shear wave wavelength, the shear wave wavelength of the second position difference less than one times.
6. elasticity distribution video generation system as described in claim 1, which is characterized in that it is a packet that this, which sends and receives system,
Two-dimensional array probe containing multiple sub- probes, and this sends and receives system and is triggered by the processing module with the multiple sub- probe
One of send out the ultrasonic in the second transmission position, and second connect with the other of the multiple sub- probe in this
It receives position and receives the second displacement signal.
7. elasticity distribution video generation system as claimed in claim 6, which is characterized in that the two-dimensional array probe is a cross
Type array probe.
8. elasticity distribution video generation system as claimed in claim 6, which is characterized in that the first position difference is less than one times
The shear wave wavelength, the shear wave wavelength of the second position difference less than one times.
9. elasticity distribution video generation system as described in claim 1, which is characterized in that the sending device and the reception device
The two-dimensional array probe for including multiple sub- probes for one, the sending device are triggered in the multiple sub- probe by the processing module
One of in this second transmission position send out the ultrasonic, the reception device by the processing module trigger with the multiple sub- spy
The other of head receives the second displacement signal in the second reception position.
10. elasticity distribution video generation system as claimed in claim 9, which is characterized in that the first position difference is less than one times
The shear wave wavelength, the shear wave wavelength of the second position difference less than one times.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5038787A (en) * | 1988-08-10 | 1991-08-13 | The Board Of Regents, The University Of Texas System | Method and apparatus for analyzing material properties using reflected ultrasound |
| KR20120008218A (en) * | 2010-07-16 | 2012-01-30 | 대진대학교 산학협력단 | Method for providing an elastic image |
| CN102686165A (en) * | 2010-10-21 | 2012-09-19 | 松下电器产业株式会社 | Ultrasonic testing device and ultrasonic testing method |
| WO2014103511A1 (en) * | 2012-12-25 | 2014-07-03 | 日立アロカメディカル株式会社 | Ultrasound diagnostic device and elasticity analysis method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998012667A2 (en) * | 1996-08-29 | 1998-03-26 | Johnson Steven A | Wavefield imaging using inverse scattering techniques |
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2015
- 2015-05-18 CN CN201510252550.7A patent/CN106264600B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5038787A (en) * | 1988-08-10 | 1991-08-13 | The Board Of Regents, The University Of Texas System | Method and apparatus for analyzing material properties using reflected ultrasound |
| KR20120008218A (en) * | 2010-07-16 | 2012-01-30 | 대진대학교 산학협력단 | Method for providing an elastic image |
| CN102686165A (en) * | 2010-10-21 | 2012-09-19 | 松下电器产业株式会社 | Ultrasonic testing device and ultrasonic testing method |
| WO2014103511A1 (en) * | 2012-12-25 | 2014-07-03 | 日立アロカメディカル株式会社 | Ultrasound diagnostic device and elasticity analysis method |
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