CN114098809A - Ultrasonic diagnostic apparatus transmitting system and rapid optimization method thereof - Google Patents
Ultrasonic diagnostic apparatus transmitting system and rapid optimization method thereof Download PDFInfo
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- CN114098809A CN114098809A CN202111436223.9A CN202111436223A CN114098809A CN 114098809 A CN114098809 A CN 114098809A CN 202111436223 A CN202111436223 A CN 202111436223A CN 114098809 A CN114098809 A CN 114098809A
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000005457 optimization Methods 0.000 title claims abstract description 10
- 239000000523 sample Substances 0.000 claims abstract description 56
- 238000012360 testing method Methods 0.000 claims abstract description 33
- 230000005540 biological transmission Effects 0.000 claims description 25
- 238000013461 design Methods 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 238000005259 measurement Methods 0.000 claims description 9
- 238000012937 correction Methods 0.000 claims description 7
- 230000001419 dependent effect Effects 0.000 claims description 3
- 230000035945 sensitivity Effects 0.000 claims description 3
- 238000012545 processing Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/54—Control of the diagnostic device
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/58—Testing, adjusting or calibrating the diagnostic device
Abstract
The invention relates to the technical field of sound field testing, in particular to an ultrasonic diagnostic apparatus transmitting system and a rapid optimization method thereof; the method comprises the following steps: the device comprises a control unit, a transmitting unit, an array probe and a sound field measuring device; the control unit is electrically connected with the transmitting unit, the array probe and the sound field measuring device in sequence, and meanwhile, the sound field measuring device is electrically connected with the control unit; the transmitting unit includes: the device comprises a parameter setting unit and a transmitting channel circuit; wherein the parameter setting unit includes: the system can solve the problem of matching of a transmitting circuit of the ultrasonic diagnostic apparatus and various array probes with different electroacoustic performances, automatically debug and optimize to obtain the optimal transmitting state of the system, particularly realize the multi-focus requirement on the transmitting system (with the probe), and ensure to obtain the optimal beam focusing performance and acoustic output characteristic.
Description
Technical Field
The invention relates to the technical field of medical electronic scanning ultrasonic diagnostic apparatuses, in particular to an ultrasonic diagnostic apparatus transmitting system and a rapid optimization method thereof.
Background
An electronic scanning ultrasonic diagnostic apparatus is essentially a medical device which transmits ultrasonic beams into a human body, receives ultrasonic waves reflected by human tissues, processes, displays and images. Specifically, a transmitted pulse electrical signal is converted into ultrasonic waves through a probe and enters human tissues, ultrasonic reflected waves are generated due to different acoustic impedances of the human tissues, and the ultrasonic reflected waves are converted into tissue echo signals through the energy of the probe to be processed and developed. In order to ensure the image quality, a multi-channel pulse circuit is generally adopted and matched with a multi-array element high-density probe to generate very fine transmitted ultrasonic beams in a certain scanning section, and the scanning is finished in a certain mode. The scanning beam line spacing and the transmitted ultrasound pulse beamwidth must be strictly matched to achieve the best results. The stronger the transmitted signal, the higher the signal-to-noise ratio, but in human body application, the requirements of safe use should be considered, and GB9706.9 has a definite regulation on the acoustic output of the ultrasonic diagnostic apparatus, for this reason, the multichannel transmitting circuit automatically optimizes acoustic matching with various array probes, and on the premise of not exceeding the acoustic output requirement, generating the optimal acoustic beam is one of the current major design works.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides an ultrasonic diagnostic apparatus transmitting system and a rapid optimization method thereof, the system can solve the problem of matching of an ultrasonic diagnostic apparatus transmitting circuit with various array probes (electric matching and acoustic matching) with different electroacoustic performances, automatically debugs and optimizes to obtain the optimal transmitting state of the system, particularly meets the multi-focus requirement of the transmitting system (with a probe), ensures that the optimal beam focusing performance and acoustic output characteristic are obtained, simultaneously ensures the beginning of system design, ensures that the system meets the GB9706.9 acoustic output requirement, and provides high-quality original data for various subsequent processing of received signals.
The invention is realized by the following technical scheme:
an ultrasonic diagnostic apparatus transmission system comprising: the device comprises a control unit, a transmitting unit, an array probe and a sound field measuring device; the control unit is electrically connected with the transmitting unit, the array probe and the sound field measuring device in sequence, and meanwhile, the sound field measuring device is electrically connected with the control unit;
the transmitting unit includes: the device comprises a parameter setting unit and a transmitting channel circuit; wherein the parameter setting unit includes: the array element delay time correction unit, the array compensation and weighting unit and the pulse waveform and bottom width setting unit;
when the transmitting system is used, the pulse waveform and bottom width setting unit, the array compensation and weighting unit and the array element delay time correction unit which are electrically excited are used as independent variables to generate actual measured values of a pulse sound field as dependent variables, automatic control optimization is carried out to ensure that the final transmitting system and the array probe are in acoustic matching to reach the optimal state, the optimal transmitting ultrasonic focusing characteristic is obtained, meanwhile, the preset value in the transmitting system is corrected to influence the electroacoustic performance of the probe of a transmitting result, and the final generated pulse sound field is ensured to have the optimal response and focusing characteristic.
Preferably, the sound field measuring apparatus includes: a water tank, a front water discharge hydrophone, a sound field testing and calculating unit and an interface unit.
Preferably, the transmitting unit further comprises a high voltage generator.
Preferably, the electroacoustic performance of the array probe includes, but is not limited to, sensitivity uniformity and phase uniformity.
Preferably, the method further comprises the following steps:
a control unit is arranged in an ultrasonic diagnostic apparatus, the control unit is combined with electroacoustic parameters of an array probe to carry out pre-compensation setting, design parameters are downloaded to a transmitting unit, meanwhile, the control unit issues a measurement command to the measurement setting of a pulse sound field through a USB interface unit, the pulse sound field of a system is tested, data after the test is finished are transmitted to the control unit through the USB interface unit to be evaluated, the transmission design parameters are modified through the parameter setting unit, and the measurement and channel signal compensation are carried out repeatedly until the pulse sound field data achieve the optimal purpose.
The invention also provides the following technical scheme: the method for quickly optimizing the transmitting system of the ultrasonic diagnostic apparatus comprises the following steps:
according to the system design, combining the electro-acoustic parameters and the probe geometric parameters of the array probe, determining and designing transmission parameters to a parameter setting unit, transmitting the transmission parameters to a transmission channel circuit by the parameter setting unit, adding an array pulse signal to the array probe by the transmission channel circuit, and transmitting the synthesized pulse ultrasonic beam to a test water tank by the array probe;
the control unit sends a test command to the sound field tester, returns to the focus position after the test is automatically completed, and transmits test data to the control unit;
the control unit adjusts the transmitting parameters according to the test data, sends the parameters to the parameter setting unit, repeats the process, transmits ultrasonic pulse beams, finds the optimal parameters of the transmitting system of the ultrasonic diagnostic apparatus through sound field test and N times of repeated operation of the process, automatically configures the transmitting system, verifies the sound field test and achieves the purpose of automatically optimizing the transmitting system.
The invention has the beneficial effects that:
the system can solve the problem of matching of the transmitting circuit of the ultrasonic diagnostic apparatus with various array probes with different electroacoustic performances, automatically debug and optimize to obtain the optimal transmitting state of the system, particularly meet the requirement of realizing multi-focus of the transmitting system (with the probe), ensure to obtain the optimal beam focusing performance and sound output characteristic, ensure the system to meet the GB9706.9 sound output requirement at the beginning of system design, and provide high-quality original data for various subsequent processing of received signals.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a circuit block diagram of the present invention;
FIG. 2 is a control block diagram of a pulse transmission circuit according to the present invention;
fig. 3 is a flow chart of the system of the present invention.
In the figure: the device comprises a 1-control unit, a 2-transmitting unit, a 21-parameter setting unit, a 211-array element delay time correcting unit, a 212-array compensation and weighting unit, a 213-pulse waveform and bottom width setting unit, a 22-transmitting channel circuit, a 23-high voltage generator, a 3-array probe, a 4-sound field measuring device, a 41-water tank and front-belt water discharge listener, a 42-sound field testing and calculating unit and a 43-interface unit.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
referring to fig. 1 to 3, the present embodiment specifically discloses a technical solution of an ultrasonic diagnostic apparatus transmitting system, including: the device comprises a control unit 1, a transmitting unit 2, an array probe 3 and an acoustic field measuring device 4; the control unit 1 is electrically connected with the transmitting unit 2, the array probe 3 and the sound field measuring device 4 in sequence, and meanwhile, the sound field measuring device 4 is electrically connected with the control unit 1;
the transmitting unit 2 includes: a parameter setting unit 21 and a transmission channel circuit 22; wherein the parameter setting unit 21 includes: an array element delay time correction unit 211, an array compensation and weighting unit 212, and a pulse waveform and bottom width setting unit 213; and meanwhile, the transmitting unit 2 controls the array probe 3 through a probe control switch.
When the transmitting system is used, the pulse waveform and bottom width setting unit 213, the array compensation and weighting unit 212 and the array element delay time correction unit 211 which are electrically excited are used as independent variables to generate actual measured values of a pulse sound field as dependent variables, automatic control and optimization are carried out to ensure that the final transmitting system and the array probe 3 are in acoustic matching to reach the optimal state, the optimal transmitting ultrasonic focusing characteristic is obtained, meanwhile, the preset value in the transmitting system is corrected to ensure that the finally generated pulse sound field has the optimal response and focusing characteristic.
Specifically, the sound field measuring apparatus 4 includes: a water tank and a front hydrophone 41, a sound field testing and calculating unit 42 and an interface unit 43.
Specifically, the transmitting unit 2 further includes a high voltage generator 23.
In particular, the electroacoustic performance of the array probe 3 includes, but is not limited to, sensitivity uniformity and phase uniformity.
Specifically, the method further comprises the following steps:
a control unit 1 is arranged in an ultrasonic diagnostic apparatus, the control unit 1 is combined with electroacoustic parameters of an array probe 3 to carry out pre-compensation setting, design parameters are downloaded to a transmitting unit 2, meanwhile, the control unit 1 issues a measurement command to the measurement setting of a pulse sound field through a USB interface unit 43 to test the pulse sound field of the system, data after the test is finished are transmitted to the control unit 1 through the USB interface unit 43 to be evaluated, the transmission design parameters are modified through a parameter setting unit 21, and measurement and channel signal compensation are carried out repeatedly until the pulse sound field data achieve the optimal purpose.
The embodiment also provides the following technical scheme: the method for quickly optimizing the transmitting system of the ultrasonic diagnostic apparatus comprises the following steps:
according to the system design, combining the electro-acoustic parameters and the probe geometric parameters of the array probe 3, establishing and designing transmission parameters to a parameter setting unit 21, transmitting the transmission parameters to a transmission channel circuit 22 by the parameter setting unit 21, adding an array pulse signal to the array probe 3 by the transmission channel circuit 22, and transmitting the synthesized pulse ultrasonic beam to a test water tank by the array probe 3;
the control unit 1 sends a test command to the sound field tester, returns to the focus position after the test is automatically completed, and transmits test data to the control unit 1;
the control unit 1 adjusts the transmitting parameters according to the test data, sends the parameters to the parameter setting unit 21, repeats the above process, transmits ultrasonic pulse beams, finds the optimal parameters of the transmitting system of the ultrasonic diagnostic apparatus through sound field test and N times of repeated operation of the above process, and automatically configures the transmitting system, verifies the sound field test and achieves the purpose of automatically optimizing the transmitting system.
The present embodiment further includes a system operation process, which is specifically shown in fig. 3.
The invention relates to a method for automatically setting, testing and correcting emission parameters by taking actual test of an emission pulse sound field of an ultrasonic diagnostic apparatus as a standard and associating emission pulse width, the number of array elements participating in emission of a probe, a probe array weighting coefficient, probe array delay focusing time, probe electroacoustic performance, acoustic output parameter wave beam focusing width, acoustic working frequency, focus sound pressure characteristic and safety index, and finally achieves the purpose of quickly optimizing an emission system of the ultrasonic diagnostic apparatus. The method and the device can be suitable for optimizing the transmitting system of the complex ultrasonic diagnostic apparatus matched with a plurality of probes. Especially for a multi-focus even whole-course focusing emission system, the purpose of quick optimization is realized.
The pulse waveform and pulse width are properly transmitted, so that the system achieves the optimal probe transmitting efficiency and response. The method participates in array element number, array element delay time correction and probe electro-acoustic performance compensation of the probe, directly influences focusing characteristics and beam bandwidth of sound waves emitted by the probe, and influences focusing characteristics of near, middle and far fields of a sound field. The system multi-focus setting optimization meets the actual use requirement of the system.
The simulation results of the single parameter experiment of this example are shown in the following table:
the method for optimizing the self-adjusting transmitting system through the sound field detection result comprises the following steps: when a nominal 7.8 MHz high-frequency probe is matched with an ultrasonic diagnostic apparatus, the emission bottom width is changed, and through sound field test, the result shows that the emission pulse bottom width is 0.13 microsecond emission, and the electroacoustic performance is optimal.
The system can solve the problem that the transmitting circuit of the ultrasonic diagnostic apparatus is matched with the array probes 3 with different electroacoustic performances, automatically debugs and optimizes to obtain the optimal transmitting state of the system, particularly meets the requirement of the transmitting system with the probes on realizing multiple focuses, ensures to obtain the optimal beam focusing performance and the optimal sound output characteristic, ensures the system to meet the GB9706.9 sound output requirement at the beginning of the system design, and provides high-quality original data for various subsequent processing of received signals.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (6)
1. An ultrasonic diagnostic apparatus transmission system, comprising: the device comprises a control unit (1), a transmitting unit (2), an array probe (3) and an acoustic field measuring device (4); the control unit (1) is electrically connected with the transmitting unit (2), the array probe (3) and the sound field measuring device (4) in sequence, and meanwhile, the sound field measuring device (4) is electrically connected with the control unit (1);
the transmitting unit (2) comprises: a parameter setting unit (21) and a transmission channel circuit (22); wherein the parameter setting unit (21) comprises: an array element delay time correction unit (211), an array compensation and weighting unit (212), and a pulse waveform and bottom width setting unit (213);
when the transmitting system is used, the pulse waveform and bottom width setting unit (213), the array compensation and weighting unit (212) and the array element delay time correction unit (211) which are electrically excited are used as independent variables to generate actual measured values of a pulse sound field as dependent variables, automatic control optimization is performed, the final transmitting system is ensured to be in an optimal state in acoustic matching with the array probe (3), the optimal transmitting ultrasonic focusing characteristic is obtained, meanwhile, the electroacoustic performance of the probe influencing a transmitting result is corrected through preset values in the transmitting system, and the final generated pulse sound field is ensured to have optimal response and focusing characteristic.
2. The ultrasonic diagnostic apparatus transmission system according to claim 1, wherein the sound field measuring device (4) comprises: a water tank, a front hydrophone (41) with a water discharge function, a sound field testing and calculating unit (42) and an interface unit (43).
3. The transmission system of the ultrasonic diagnostic apparatus according to claim 2, wherein the transmission unit (2) further comprises a high voltage generator (23).
4. An ultrasonic diagnostic apparatus transmission system as claimed in claim 3, characterized in that the electro-acoustic properties of the array probe (3) include but are not limited to sensitivity consistency and phase consistency.
5. The ultrasonic diagnostic apparatus transmitting system according to claim 4, further comprising the steps of:
a control unit (1) is arranged in an ultrasonic diagnostic apparatus, the control unit (1) is combined with electroacoustic parameters of an array probe (3) to carry out pre-compensation setting, design parameters are downloaded to a transmitting unit (2), meanwhile, the control unit (1) issues a measurement command to pulse sound field measurement setting through a USB interface unit (43), a pulse sound field of a system is tested, data after the test is finished are transmitted to the control unit (1) through the USB interface unit (43) to be evaluated, the transmission design parameters are modified through a parameter setting unit (21), and multiple round-trip measurement and channel signal compensation are carried out until the pulse sound field data reach the optimal purpose.
6. The method for rapidly optimizing the transmission system of the ultrasonic diagnostic apparatus according to any one of claims 1 to 5, comprising the steps of:
according to system design, electro-acoustic parameters and probe geometric parameters of the array probe (3) are combined, transmission parameters are determined and designed to be sent to a parameter setting unit (21), the parameter setting unit (21) sends the transmission parameters to a transmission channel circuit (22), the transmission channel circuit (22) adds array pulse signals to the array probe (3), and the array probe (3) sends synthesized pulse ultrasonic beams to a test water tank;
the control unit (1) issues a test command to the sound field tester, returns to the focus position after the test is automatically completed, and transmits test data to the control unit (1);
the control unit (1) adjusts the transmitting parameters according to the test data, gives a parameter setting unit (21), repeats the process, transmits ultrasonic pulse beams, finds the optimal parameters of the transmitting system of the ultrasonic diagnostic apparatus through sound field test and N times of repeated operation of the process, automatically configures the transmitting system, verifies the sound field test and achieves the purpose of automatically optimizing the transmitting system.
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4691569A (en) * | 1983-09-13 | 1987-09-08 | Fujitsu Limited | Apparatus for observing sound field of ultrasonic wave |
| JP2006234665A (en) * | 2005-02-25 | 2006-09-07 | Hitachi Kenki Fine Tech Co Ltd | Ultrasonic inspection device |
| US20080125660A1 (en) * | 2006-11-28 | 2008-05-29 | Shenzhen Mindray Bio-Medical Electronics Co., Ltd | Method and device for transmission of wide-beam in an ultrasonic diagnostic system |
| CN102028499A (en) * | 2010-12-24 | 2011-04-27 | 飞依诺科技(苏州)有限公司 | Ultrasonic probe adaptive imaging system |
| CN102151151A (en) * | 2011-04-14 | 2011-08-17 | 武汉超信电子工程有限公司 | Ultrasonic diagnostic apparatus with function of correcting machine parameters |
| CN104997533A (en) * | 2015-06-23 | 2015-10-28 | 武汉超信电子工程有限公司 | Ultrasonic probe geometric parameter automatic correction method and apparatus |
| US20150320398A1 (en) * | 2014-05-08 | 2015-11-12 | Kabushiki Kaisha Toshiba | Ultrasonic diagnostic apparatus and control method |
| CN107328866A (en) * | 2017-02-27 | 2017-11-07 | 陕西师范大学 | A kind of reparation bearing calibration of ultrasonic phase array linear transducer array |
-
2021
- 2021-11-29 CN CN202111436223.9A patent/CN114098809A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4691569A (en) * | 1983-09-13 | 1987-09-08 | Fujitsu Limited | Apparatus for observing sound field of ultrasonic wave |
| JP2006234665A (en) * | 2005-02-25 | 2006-09-07 | Hitachi Kenki Fine Tech Co Ltd | Ultrasonic inspection device |
| US20080125660A1 (en) * | 2006-11-28 | 2008-05-29 | Shenzhen Mindray Bio-Medical Electronics Co., Ltd | Method and device for transmission of wide-beam in an ultrasonic diagnostic system |
| CN102028499A (en) * | 2010-12-24 | 2011-04-27 | 飞依诺科技(苏州)有限公司 | Ultrasonic probe adaptive imaging system |
| CN102151151A (en) * | 2011-04-14 | 2011-08-17 | 武汉超信电子工程有限公司 | Ultrasonic diagnostic apparatus with function of correcting machine parameters |
| US20150320398A1 (en) * | 2014-05-08 | 2015-11-12 | Kabushiki Kaisha Toshiba | Ultrasonic diagnostic apparatus and control method |
| CN104997533A (en) * | 2015-06-23 | 2015-10-28 | 武汉超信电子工程有限公司 | Ultrasonic probe geometric parameter automatic correction method and apparatus |
| CN107328866A (en) * | 2017-02-27 | 2017-11-07 | 陕西师范大学 | A kind of reparation bearing calibration of ultrasonic phase array linear transducer array |
Non-Patent Citations (4)
| Title |
|---|
| LI, Y, IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL, vol. 53, no. 8, 7 August 2006 (2006-08-07) * |
| 周真祥: "超声换能器声场特性自动化检测技术的研究", 中国优秀硕士学位论文全文数据库（工程科技Ⅱ辑）, no. 7, 15 July 2016 (2016-07-15) * |
| 戴敏达: "高强度聚焦超声换能器声功率测量方法研究", 中国优秀硕士学位论文全文数据库（工程科技Ⅱ辑）, no. 2, 15 February 2021 (2021-02-15) * |
| 韩冥生,杨平: "脉冲回波法与水听器法测量超声探头声场参数比较研究", 计量学报, no. 2 * |
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