CN102908166A - Scanning device and method for three-dimensional ultrasound elasticity imaging - Google Patents
Scanning device and method for three-dimensional ultrasound elasticity imaging Download PDFInfo
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- CN102908166A CN102908166A CN2012103115135A CN201210311513A CN102908166A CN 102908166 A CN102908166 A CN 102908166A CN 2012103115135 A CN2012103115135 A CN 2012103115135A CN 201210311513 A CN201210311513 A CN 201210311513A CN 102908166 A CN102908166 A CN 102908166A
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Abstract
The invention discloses a scanning device and method for three-dimensional ultrasound elasticity imaging. The scanning device comprises a support, a linear slide rail, a fine-tuning cradle head, an ultrasonic probe, a displacement sensor, a signal transmission module and a data processing device. The scanning method comprises the following steps that: a slider on the the linear slide rail drives the fine-tuning cradle head and the ultrasonic probe to move to collect ultrasound radio-frequency signals and positional information thereof; after the scanning is performed once, the position of the ultrasonic probe is adjusted, so that the ultrasonic probe compresses a part to be detected and scans again to obtain ultrasound radio-frequency signals and positional information of a scanned object before and after compression; and a frame matching sequence of the two frames of ultrasound radio-frequency signals before and after compression is extracted according to the positional information and used for calculating a two-dimensional deformation image sequence for the three-dimensional ultrasound elasticity imaging. The scanning device avoids high cost and inconvenience caused by the huge size of a mechanical positional system, is high in anti-jamming capability and practical applicability and low in cost, and can effectively improve the operation convenience of a three-dimensional ultrasound elasticity imaging technology.
Description
Technical field
The present invention relates to the computer-aided medical science technical field of imaging, particularly a kind of scanning equipment and method for the three-D ultrasonic elastogram.
Background technology
Ultrasonic elastograph imaging is a kind of Novel ultrasonic diagnostic techniques, can the ultrasonic tumor that can't survey of research tradition and the imaging of diffusion disease, can be applicable to the aspects such as mammary gland, thyroid, prostate.The elasticity of tissue depends on its molecule and microstructure, and the clinician is by palpation qualitative evaluation and Diagnosis of Breast Tumor, and its basis is to organize the histopathology of hardness or elasticity and pathological changes closely related.New elastogram technology provides the image of organizing hardness, namely about the information of the tissue signature of pathological changes.Different according to coefficient of elasticity between different tissues, the degree that tissue deforms after being subject to external force pressure is different, the variation of echo signal mobile range before and after the pressurized is converted into the real-time color image, coefficient of elasticity is little, the large tissue of change in displacement is shown as blueness behind the pressurized, coefficient of elasticity is large, behind the pressurized change in displacement little organize shown in red, organizing that coefficient of elasticity is medium is shown in green, borrows the hardness of image color reflection tissue.The elastogram technology is widened ultrasonoscopy, has remedied the deficiency of conventional Ultrasound, can more vivo show and locate pathological changes.
At present, in the medical 3 D ultrasonic elastograph imaging there be checking method commonly used: machinery location scanning, two-dimensional array probe scanning, three kinds of modes of free arm (Free-Hand) scanning.Wherein, mechanical navigation system is huger and complex structure often, and also there is certain restriction at the scanning position; Because the array element enormous amount of two-dimensional array, each array element will configure corresponding acquisition channel based on the scanning mode of two-dimensional array probe, therefore no matter on the complexity of technology, or on the cost of system, all also has many problems to research and solve; The free arm system adopts the electromagnetic position sensor location based on 6 degree of freedom, and its position sensor is made of emitter, receptor and corresponding electronic installation.The shortcoming of this system is the interference that easily is subject to the ferromagnetic material etc. in electromagnetism (such as CRT monitor etc.), the environment for use, make the magnetic field distorted of measurement and cause position error, and system cost is higher.
Therefore, need to provide that a kind of system rejection to disturbance ability is strong, cost is low, three-D ultrasonic elastogram scanning equipment and the method for simple in structure, simple operation.
Summary of the invention
Main purpose of the present invention is to overcome the shortcoming of prior art with not enough, and a kind of scanning equipment for the three-D ultrasonic elastogram is provided, and this apparatus structure is simple, simple operation and capacity of resisting disturbance are strong.The present invention also provides a kind of checking method based on above-mentioned scanning equipment for the three-D ultrasonic elastogram.
Purpose of the present invention realizes by following technical scheme: a kind of scanning equipment for the three-D ultrasonic elastogram, comprise support, linear type slide rail, fine-adjustment tripod head, ultrasonic probe, displacement transducer, signal transmission module and data processing equipment, described linear type slide rail is fixed on the support, fine-adjustment tripod head is fixed on the slide block of linear type slide rail, ultrasonic probe is arranged on the fine-adjustment tripod head, the linear type slide rail is used for driving fine-adjustment tripod head and ultrasonic probe moves horizontally along the slide rail direction, and the position of ultrasonic probe on the fine-adjustment tripod head vertical direction is adjustable; Displacement transducer is used for gathering the position of current ultrasonic probe on linear type slide rail and fine-adjustment tripod head, then positional information is sent to data processing equipment by signal transmission module; Ultrasonic probe is connected with data processing equipment, and gathers ultrasonic radiofrequency signal by data processing equipment operation driver control ultrasonic probe.
Preferably, described displacement transducer and signal transmission module all are built in the slide block of linear type slide rail.Thereby namely can the guard bit displacement sensor and signal transmission module avoid external influence, also can simplify the external structure of whole system.
Further, described signal transmission module adopts wireless transport module.Adopt the further circuit structure of simplified system of this structure, it is more convenient to use.
A kind of checking method that is used for the three-D ultrasonic elastogram based on said apparatus may further comprise the steps:
(1) regulates the position of ultrasonic probe on fine-adjustment tripod head, and ultrasonic probe moved to position to be detected, position and ultrasonic probe the position on fine-adjustment tripod head of current slide on the linear type slide rail is sent to data processing equipment, then open ultrasonic probe by data processing equipment operation probe driver, and the driving ultrasonic probe gathers ultrasonic radiofrequency signal;
(2) change the position of ultrasonic probe on the fine-adjustment tripod head vertical direction, ultrasonic probe is moved to position to be detected, mineralization pressure makes position to be detected compressed, repeating step (1);
(3) ultrasonic series of radio frequency signals and location information data after front the ultrasonic series of radio frequency signals of compression that gathers according to step (1) and the compression of positional information and step (2) collection, searching ultrasonic radiofrequency signal of two frames of position arest neighbors in the two framing sequences that collect before compressed and after compressed (respectively from before the compression and the ultrasonic RF frame sequence after the compression), as the coupling frame, and then calculate two-dimentional deformation image sequence, then obtain the three-D ultrasonic elastic image through three-dimensional reconstruction.
The present invention compared with prior art has following advantage and beneficial effect:
The present invention adopts fine-adjustment tripod head and linear type slide rail, thereby can be on both direction mobile ultrasonic probe, simple in structure, easy to operation, greatly simplified existing three-D ultrasonic elastogram system, overcome the bulky expensive and inconvenience that brings of mechanical navigation system, the system rejection to disturbance ability is strong, cost is low, and is practical.
Description of drawings
Fig. 1 is the structural representation of apparatus of the present invention;
Fig. 2 is apparatus of the present invention use procedure schematic diagram.
Fig. 3 (a) is the normal surface section displayed map of three-D ultrasonic elastogram reconstructed results among the embodiment 1;
Fig. 3 (b) is that three-dimensional deformation shown in Fig. 3 (a) is rebuild design sketch.
The specific embodiment
The present invention is described in further detail below in conjunction with embodiment and accompanying drawing, but embodiments of the present invention are not limited to this.
As shown in Figure 1, the present invention is used for checking method and the device of three-D ultrasonic elastogram, comprises support, data processing equipment 1, signal transmission module, ultrasonic probe 2, linear type slide rail 3, slide block 4 and fine-adjustment tripod head 5.Described linear type slide rail 3 is fixed on the support, and fine-adjustment tripod head 5 is fixed on the slide block 4 of linear type slide rail 3, and ultrasonic probe 2 is arranged on the fine-adjustment tripod head 5, and the position of ultrasonic probe 2 on fine-adjustment tripod head 5 vertical direction is adjustable.Slide block 4 is slidingly connected with linear type slide rail 3.Linear type slide rail 3 is used for driving fine-adjustment tripod head 5 and ultrasonic probe 2 moves horizontally along the slide rail direction.Be provided with Linear displacement transducer and built-in signal transport module in the slide block 4, signal transmission module adopts wireless transport module, Linear displacement transducer is connected with data processing equipment 1 by wireless transport module, be used for gathering the position of current ultrasonic probe on linear type slide rail and fine-adjustment tripod head, then positional information sent to data processing equipment 1 by signal transmission module.Ultrasonic probe 2 is connected with data processing equipment 1, and data processing equipment 1 operation probe driver is opened ultrasonic probe 2, and drives the ultrasonic radiofrequency signal of ultrasonic probe 2 collections.
Fig. 2 has showed the scanning process of said apparatus, and the checking method that is used for the three-D ultrasonic elastogram based on said apparatus may further comprise the steps:
(1) supposes that position to be detected is positioned at linear type slide rail 3 belows, slide block 4 on the mobile linear type slide rail 3 drives fine-adjustment tripod head 5 and ultrasonic probe 2 moves, ultrasonic probe 2 is moved to position to be detected, with current slide 4 in the position on the linear type slide rail 3 and the position of ultrasonic probe 2 on fine-adjustment tripod head 5 be sent to data processing equipment 1, then open ultrasonic probe 2 by data processing equipment 1 operation probe driver, and drive the ultrasonic radiofrequency signal of ultrasonic probe 2 collections;
(2) after the scanning one time, regulate fine-adjustment tripod head 5, change the position of ultrasonic probe 2 on linear type slide rail 3 vertical direction, ultrasonic probe 2 is moved to position to be detected, mineralization pressure makes position to be detected compressed, repeating step (1), and scanning is one time again;
(3) ultrasonic series of radio frequency signals (as shown in Figure 8) and location information data after front the ultrasonic series of radio frequency signals of compression (as shown in Figure 7) that gathers according to step (1) and the compression of positional information and step (2) collection, the ultrasonic radiofrequency signal of two frames of searching position arest neighbors before compressed and in the two framing sequences that collect after compressed is as the coupling frame, and then calculate two-dimentional deformation image sequence, then obtain the three-D ultrasonic elastic image through three-dimensional reconstruction.
The present embodiment adopt a kind of ultrasonic elasticity imitate Type IV diameter in the body (model C IRS 049, Norfolk, VA, the U.S.) be 10 millimeters ball as the detection of a target, its elastic modelling quantity is 80kPa, the elastic modelling quantity of background material is 25kPa.Ultrasonic probe is selected the L14-5/38 linear array probe, mid frequency 10MHz, 38 millimeters of probe detection width, 40 millimeters of the degree of depth.As shown in Figure 3, figure (a) is that the normal surface section of three-D ultrasonic elastogram reconstructed results shows, wherein the two-dimentional deformation map image planes of p plane for being calculated by RF coupling frame data; Figure (b) rebuilds design sketch for three-dimensional deformation.
Above-described embodiment is the better embodiment of the present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not deviate from change, the modification done under spirit of the present invention and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (4)
1. scanning equipment that is used for the three-D ultrasonic elastogram, it is characterized in that, comprise support, linear type slide rail, fine-adjustment tripod head, ultrasonic probe, displacement transducer, signal transmission module and data processing equipment, described linear type slide rail is fixed on the support, fine-adjustment tripod head is fixed on the slide block of linear type slide rail, ultrasonic probe is arranged on the fine-adjustment tripod head, the linear type slide rail is used for driving fine-adjustment tripod head and ultrasonic probe moves horizontally along the slide rail direction, and the position of ultrasonic probe on the fine-adjustment tripod head vertical direction is adjustable; Displacement transducer is used for gathering the position of current ultrasonic probe on linear type slide rail and fine-adjustment tripod head, then positional information is sent to data processing equipment by signal transmission module; Ultrasonic probe is connected with data processing equipment, and gathers ultrasonic radiofrequency signal by data processing equipment operation driver control ultrasonic probe.
2. the scanning equipment for the three-D ultrasonic elastogram according to claim 1 is characterized in that, described displacement transducer and signal transmission module all are built in the slide block of linear type slide rail.
3. the scanning equipment for the three-D ultrasonic elastogram according to claim 2 is characterized in that, described signal transmission module adopts wireless transport module.
4. the checking method that is used for the three-D ultrasonic elastogram based on the described device of claim 1 is characterized in that, may further comprise the steps:
(1) regulates the position of ultrasonic probe on fine-adjustment tripod head, and ultrasonic probe moved to position to be detected, position and ultrasonic probe the position on fine-adjustment tripod head of current slide on the linear type slide rail is sent to data processing equipment, then open ultrasonic probe by data processing equipment operation probe driver, and the driving ultrasonic probe gathers ultrasonic radiofrequency signal;
(2) change the position of ultrasonic probe on the fine-adjustment tripod head vertical direction, ultrasonic probe is moved to position to be detected, mineralization pressure makes position to be detected compressed, repeating step (1);
(3) ultrasonic series of radio frequency signals and location information data after front the ultrasonic series of radio frequency signals of compression that gathers according to step (1) and the compression of positional information and step (2) collection, the ultrasonic radiofrequency signal of two frames of searching position arest neighbors before compressed and in the two framing sequences that collect after compressed is as the coupling frame, and then calculate two-dimentional deformation image sequence, then obtain the three-D ultrasonic elastic image through three-dimensional reconstruction.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103735284A (en) * | 2013-12-26 | 2014-04-23 | 华南理工大学 | Linear scanning based RF (Radio Frequency) signal estimation method in three-dimensional ultrasound elastography |
| CN104000622A (en) * | 2014-05-28 | 2014-08-27 | 华南理工大学 | Multiple-free-scanning three-dimensional ultrasound quasi-static imaging method |
| CN104337550A (en) * | 2014-10-21 | 2015-02-11 | 无锡海斯凯尔医学技术有限公司 | Method, device and system for detecting elasticity |
| CN106580367A (en) * | 2016-11-14 | 2017-04-26 | 吉林大学 | Ultrasonic assembled type examination and diagnosis device |
| CN109316207A (en) * | 2018-10-15 | 2019-02-12 | 聚融医疗科技(杭州)有限公司 | A kind of breast ultrasound scanning system and method |
| CN110477949A (en) * | 2019-08-26 | 2019-11-22 | 东软医疗系统股份有限公司 | Ultrasonic imaging method, device and supersonic imaging apparatus |
| CN111803128A (en) * | 2020-07-15 | 2020-10-23 | 深圳大学 | Mammary tissue elastography method, device, equipment and medium |
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| CN102508256A (en) * | 2011-11-23 | 2012-06-20 | 中国科学院微电子研究所 | Non-contact real-time physiological signal monitoring system |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103735284A (en) * | 2013-12-26 | 2014-04-23 | 华南理工大学 | Linear scanning based RF (Radio Frequency) signal estimation method in three-dimensional ultrasound elastography |
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| CN104000622A (en) * | 2014-05-28 | 2014-08-27 | 华南理工大学 | Multiple-free-scanning three-dimensional ultrasound quasi-static imaging method |
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| CN104337550A (en) * | 2014-10-21 | 2015-02-11 | 无锡海斯凯尔医学技术有限公司 | Method, device and system for detecting elasticity |
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| CN106580367A (en) * | 2016-11-14 | 2017-04-26 | 吉林大学 | Ultrasonic assembled type examination and diagnosis device |
| CN109316207A (en) * | 2018-10-15 | 2019-02-12 | 聚融医疗科技(杭州)有限公司 | A kind of breast ultrasound scanning system and method |
| CN109316207B (en) * | 2018-10-15 | 2023-08-11 | 聚融医疗科技(杭州)有限公司 | Mammary gland ultrasonic scanning system and method |
| CN110477949A (en) * | 2019-08-26 | 2019-11-22 | 东软医疗系统股份有限公司 | Ultrasonic imaging method, device and supersonic imaging apparatus |
| CN111803128A (en) * | 2020-07-15 | 2020-10-23 | 深圳大学 | Mammary tissue elastography method, device, equipment and medium |
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