CN114755311B - Method and measuring device for detecting consistency of array elements of ultrasonic probe - Google Patents
Method and measuring device for detecting consistency of array elements of ultrasonic probe Download PDFInfo
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Abstract
The invention provides a method and a measuring device for detecting the consistency of array elements of an ultrasonic probe, wherein the method comprises the following steps: the ultrasonic probe is coupled with the acoustic test standard component; the ultrasonic host sends a pulse signal to a transmission channel where a specific array element in the ultrasonic probe is located, then opens an acquisition channel and transmits a reflected wave signal recorded by the array element to an ultrasonic host storage module. The ultrasonic host sends the data stored in the ultrasonic host storage module to an upper computer; the upper computer extracts a reflected wave time domain signal and executes a spectrum analysis operation to obtain the maximum value of a reflected wave spectrum; calculating to obtain the sensitivity of each array element of the ultrasonic probe and the average sensitivity value of all the array elements; and obtaining the relative sensitivity of each array element and giving the result of the detection and evaluation of the consistency of the array elements of the probe. The method improves the convenience and accuracy of the consistency evaluation of the array elements of the ultrasonic probe, and reduces the difficulty of later-stage management and maintenance of the probe.
Description
Technical Field
The invention relates to the technical field of ultrasonic diagnosis imaging, in particular to a method and a measuring device for detecting the consistency of array elements of an ultrasonic probe.
Background
Due to the unique advantages of real-time property, low cost and the like, the ultrasonic imaging technology is widely applied to the fields of tissue imaging and clinical diagnosis.
The ultrasonic probe is a front-end otoocular in an ultrasonic imaging system, and the main principle of the ultrasonic probe is to realize conversion between a high-frequency acoustic signal and a high-frequency electric signal through a piezoelectric effect, so the ultrasonic probe is a basic component of ultrasonic imaging. The performance of the ultrasound probe directly determines the image quality of the ultrasound, thereby directly affecting the clinical diagnosis results. In the process of long-term repeated use of the ultrasonic probe, the working performance of the ultrasonic probe is easy to degrade to a certain extent. Therefore, the ultrasound device administrator needs to perform self-test inspection on the ultrasound probe periodically, so as to reduce misdiagnosis and missed diagnosis caused by abnormal performance or failure of vulnerable parts inside the probe.
The detection of the ultrasonic probe relates to appearance, electrical performance parameters and array element sensitivity, wherein the array element sensitivity in the ultrasonic probe is a key index of detection. The array elements in the ultrasonic probe are usually elements for realizing electroacoustic energy conversion, and have the dual functions of transmitting and receiving ultrasonic waves, and the electroacoustic conversion performance (sensitivity) of each independent array element determines the quality of an ultrasonic echo signal of an independent channel. The difference of the electroacoustic conversion performance (sensitivity difference) of all array elements on the ultrasonic probe has a direct influence on the image quality of ultrasonic imaging. Therefore, in order to obtain high quality ultrasound images clinically, the array element performance of the ultrasound array transducer is required to have high consistency.
The clinical ultrasound technician generally makes subjective judgments on the consistency of the array elements by visually checking the nonuniformity of the horizontal brightness of the clinical ultrasound images, and the visual evaluation method has certain artificial differences and cannot accurately obtain quantitative evaluation on the consistency of the array elements. There are related technical solutions (publication number: CN110236591A) that attempt to perform statistical analysis on gray scale brightness values of a specific image region to obtain consistency detection of an array element, but on one hand, this test method requires that a probe is fixed on the same position of an ultrasound body membrane before testing, which has certain operation difficulty, and on the other hand, the statistical analysis result of the image fixing region selected by this method is difficult to form a direct correspondence with the performance of the array element in the specific position, so that the array element with performance defects is not easily locked, and the management complexity of ultrasound device administrators and the difficulty in evaluating the quality of the ultrasound probe are improved to a certain extent.
Disclosure of Invention
The invention aims to provide a method and a device for detecting the consistency of array elements of an ultrasonic probe, which are used for overcoming the defects in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme:
the invention discloses a method for detecting consistency of array elements of an ultrasonic probe, which comprises the following steps:
s1, coupling and connecting the ultrasonic probe with the acoustic test standard part matched with the ultrasonic probe;
s2, the ultrasonic host sends a pulse signal to a transmission channel where a specific array element in the ultrasonic probe is located; after the pulse signal is sent, the ultrasonic host starts an acquisition channel to acquire reflected wave signal data recorded by the specific array element and transmits the reflected wave signal data to a storage module of the ultrasonic host;
s3, after the acquisition channel of the ultrasonic host finishes acquisition, the reflected wave signal data stored in the storage module of the ultrasonic host is sent to an upper computer;
s4, the upper computer performs spectrum analysis operation on the reflected wave signal data to obtain the maximum value of the reflected wave spectrum;
s5, calculating the sensitivity of the specific array element according to the maximum value of the reflected wave frequency spectrum and the maximum value of the specific array element input signal frequency spectrum;
s6, circulating the steps S2-S5, and obtaining the sensitivity of each array element of the ultrasonic probe and the sensitivity average value of all the array elements;
and S7, obtaining the relative sensitivity standard deviation of each array element, comparing the relative sensitivity standard deviation with a reference value, and giving the result of the consistency detection evaluation of the array elements of the ultrasonic probe according to the comparison result.
Preferably, in S1, the acoustic test standard is coupled to the ultrasonic probe by an ultrasonic coupling agent, the acoustic test standard is a passive device that reflects the pulse signal through an interface to form the reflected wave signal, and an acoustic impedance of a matching material of the acoustic test standard is less than 4 MRayls.
Preferably, the specific array element is an independent array element or a set consisting of a plurality of independent array elements.
Preferably, the pulse signal is an electrical signal having a single fixed center frequency, and the transmission channel is an electrical signal path.
Preferably, the spectral analysis operation comprises signal filtering and fast fourier transformation.
Preferably, the result of the consistency detection evaluation of the array elements of the ultrasonic probe given in S7 specifically includes the following operations: judging whether the relative sensitivity standard deviation of each array element is smaller than a reference value or not; if the array element consistency is less than the standard matrix element consistency, the array element consistency is qualified; otherwise, the consistency of the array elements is unqualified.
The invention also discloses a measuring device for detecting the consistency of the array elements of the ultrasonic probe, which comprises: the ultrasonic host is used for transmitting the high-frequency electric signal to the ultrasonic probe, receiving the high-frequency electric signal returned by the ultrasonic probe, converting the high-frequency electric signal into a digital signal for storage and carrying out data communication with an upper computer; the ultrasonic probe is used for converting the electric signal transmitted by the ultrasonic host machine into an ultrasonic signal or converting the ultrasonic signal into a high-frequency electric signal; the upper computer is used for processing the signals transmitted by the ultrasonic host storage module and analyzing and displaying data; an acoustic test standard having one of its surfaces coincident with an acoustic transceiver surface of the ultrasound probe.
Preferably, the ultrasound host comprises a transmitting module for transmitting the high-frequency electric signal to the ultrasound probe, a receiving module for receiving the high-frequency electric signal returned by the ultrasound probe, a storage module for recording the digital signal, and a control and communication module for transmitting data with the upper computer.
Preferably, the ultrasound probe comprises a single continuous transducer array or a plurality of transducer arrays.
The invention has the beneficial effects that:
compared with the prior art, the invention has the beneficial effects that: the ultrasonic probe array element consistency detection method and the ultrasonic probe array element consistency measurement device are characterized in that the ultrasonic probe is coupled with an acoustic test standard component, an ultrasonic host executes a receiving and sending sequence of single transmission and single reception, and sequentially collects reflected wave signals of all array elements and executes array element consistency analysis; furthermore, the problems of low automation degree of array element detection of the ultrasonic probe, inaccurate quantitative evaluation of array element consistency, fuzzy positioning of bad array elements and the like in the traditional test technology are solved, convenience and accuracy of evaluation of the ultrasonic probe array element consistency are improved, and the difficulty of later-stage management and maintenance of the probe is reduced.
The features and advantages of the present invention will be described in detail by embodiments in conjunction with the accompanying drawings.
Drawings
FIG. 1 is a schematic structural diagram of a measuring device for consistency detection of an array element of an ultrasonic probe according to the present invention;
FIG. 2 is a schematic flow chart of a method for detecting consistency of array elements of an ultrasonic probe according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of the present invention for performing array element consistency detection on an ultrasonic linear array probe;
wherein: 1-acoustic test standard, 2-ultrasonic probe.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood, however, that the description herein of specific embodiments is only intended to illustrate the invention and not to limit the scope of the invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
Referring to fig. 1, the schematic block diagram of an apparatus for detecting and measuring the consistency of array elements of an ultrasonic probe provided by the invention is shown. As shown in fig. 1, an ultrasonic probe array element consistency detection measuring device is composed of an upper computer 110 equipped with ultrasonic probe array element consistency detection software, an ultrasonic host computer 120, an ultrasonic probe 130 and an acoustic test standard 140. Wherein the ultrasound host 120 comprises a storage module 124, a transmission module 122, a reception module 123 and a control and communication module 121. The ultrasonic host 120 is used for transmitting the high-frequency electric signal to the ultrasonic probe 130 and receiving the high-frequency electric signal returned by the ultrasonic probe 130, and is provided with a storage module 124 for storing the electric signal as a digital signal and a control and communication module 121 for performing data interaction with the upper computer 110; the ultrasonic probe 130 is used for converting the electric signal emitted by the ultrasonic host 120 into an ultrasonic signal or converting the ultrasonic signal into a high-frequency electric signal; the upper computer 110 is used for processing the ultrasonic signals uploaded by the storage module 124 in the ultrasonic host computer 120 and performing data processing and result display.
In the process of acquiring the ultrasound signal by the ultrasound host 120, the acquisition sequence is executed according to the ultrasound acquisition program on the upper computer 110. The acquisition sequence refers to that the ultrasonic host transmits and receives ultrasonic signals to a specific array element set according to a certain sequence. The ultrasonic acquisition program of the upper computer 110 can adjust the acquisition sequence according to the size of the storage space of the ultrasonic host computer, so that the technical threshold of the invention is reduced.
Referring to fig. 2, the invention provides a method for detecting the consistency of an array element of an ultrasonic linear array probe, which comprises the following steps:
the ultrasonic linear array probe 2 is coupled with an acoustic test standard component 1 matched with the ultrasonic linear array probe;
generally, the acoustic test standard 1 and the ultrasonic linear array probe 2 are in contact coupling connection, and the surface and the opposite surface of the acoustic test standard 1 are parallel to the sound radiation surface of the ultrasonic linear array probe 2, that is, the sound radiation direction of an ultrasonic array element is ensured to be perpendicular to the surface and the opposite surface of the acoustic test standard 1, which are in contact with the ultrasonic linear array probe 2, so as to enhance the ultrasonic reflected wave signal.
As shown in fig. 3, the acoustic test standard 1 has a coupling mechanism for positioning with the ultrasonic line probe 2, and the surface of the acoustic test standard 1 and the acoustic transmitting and receiving surface of the ultrasonic probe 2 are spatially fixed relative to each other by the coupling mechanism.
The coupling connection mechanism is characterized in that the mutual coupling connection between the acoustic testing standard component 1 and the ultrasonic linear array probe 2 is realized by utilizing the viscosity of the ultrasonic coupling agent, and meanwhile, the acoustic impedance matching between the ultrasonic linear array probe 2 and the acoustic testing standard component 1 is improved, so that the sound wave emitted by the ultrasonic probe 2 can be transmitted to the acoustic testing standard component 1 with lower loss, and further, the ultrasonic echo signal is enhanced.
Optionally, the opposite surface of the acoustic test standard component 1, which is in contact with the ultrasonic linear array probe 2, is kept in contact with air, and the ultrasonic reflected wave signal is enhanced through the change of interface acoustic impedance.
Optionally, the material of the acoustic test standard component 1 may be organic glass with acoustic impedance of about 3.2MRayls or polyurethane with acoustic impedance of about 1.9 MRayls.
The ultrasonic linear array probe 2 is electrically connected with the ultrasonic host, and the upper computer executes an ultrasonic linear array probe array element consistency detection program;
the ultrasonic main machine is towards the ultrasonic linear array probe 2
Transmitting pulse signal by transmission channel where array element is positioned
(ii) a After the pulse signal is sent, the ultrasonic host starts an acquisition channel and sends the acquisition channel to the ultrasonic host
Data of reflected wave signal recorded by array element
Sending to the storage module of the ultrasonic host, wherein
Numbering the array elements of the ultrasonic probe.
For example, when the measuring device detects
When array element is in use, the ultrasonic host machine enables the ultrasonic transmission channel to be connected with the ultrasonic transmission channel through the control module
The array element circuit is conducted, and the ultrasonic host sends a pulse signal to the ultrasonic transmission channel
(ii) a After the pulse signal is sent, the ultrasonic host starts an acquisition channel and sends the acquisition channel to the ultrasonic host
Data of reflected wave signal recorded by array element
And sending the data to an ultrasonic host storage module.
After the ultrasonic host finishes the acquisition of the transmission channel, the data stored in the storage module of the ultrasonic host is sent to an upper computer; upper computerUltrasonic probe
Reflected wave signal of array element channel
Performing fast Fourier transform, and calculating to obtain reflected wave frequency spectrum
Maximum value of
；
Wherein the content of the first and second substances,
expressed as a function of the fast fourier transform,
expressed as a max-taking operation function.
According to the maximum value of the frequency spectrum of the reflected wave
And
array element input signal frequency spectrum maximum
Is calculated to obtain
Sensitivity of array elements
；
Wherein the content of the first and second substances,
expressed as a function of the fast fourier transform,
expressed as a max-taking operation function.
Specifically, the upper computer receives the data signal of the independent channel, stores the data signal in the memory of the upper computer, and further performs data post-processing. And after the upper computer receives the independent channel data signals, performing signal data post-processing work on the upper computer at the same time. For example, the upper computer extracts the ultrasonic probe from the memory
Reflected wave signal of array element channel
For the reflected wave signal
Performing fast Fourier transform to obtain reflected wave signal
The frequency spectrum of the reflected wave is calculated
Maximum value of
(ii) a Extracting and calculating the maximum value of the reflected wave frequency spectrum
And
array element input signal frequency spectrum maximum
Is calculated to obtain
Sensitivity of array elements
；
And circularly executing the step S23 and the step S25, obtaining the sensitivity of each array element on the ultrasonic probe one by one, and judging that the sensitivity calculation of all target array elements is finished. If yes, executing the next step; if not, the process returns to step S23 again to continue the collection.
Calculating to obtain the sensitivity average value of all array elements
It is formulated as follows:
wherein the content of the first and second substances,
expressed as a function of the average value taken,
expressed as the maximum array element number in the ultrasound probe. S27, calculating the relative sensitivity parameter of each array element
And the relative sensitivity standard deviation is calculated.
Wherein the content of the first and second substances,
expressed as the relative sensitivity parameter of the array elements,
expressed as the standard deviation of the relative sensitivity,
expressed as a calculated sample standard deviation function.
In the present invention, the method further comprises: and comparing the calculated standard deviation of the relative sensitivity of the array elements with the standard deviation of the reference relative sensitivity, and if the standard deviation of the relative sensitivity of the array elements is smaller than the standard deviation of the reference relative sensitivity, determining that the consistency quality of the array elements of the ultrasonic probe is qualified, otherwise, determining that the consistency quality of the array elements of the ultrasonic probe is unqualified.
The method flows in embodiments of the invention may be implemented or carried out by computer hardware, a combination of hardware and software, or by computer instructions stored in a non-transitory computer readable memory. The method may use standard programming techniques.
Each program may be implemented in a high level procedural or object oriented programming language to communicate with a computer system. In any case, the language may be a compiled or interpreted language. The program can be run on a programmed application specific integrated circuit for this purpose.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention.
Claims (6)
1. A method for detecting the consistency of array elements of an ultrasonic probe is characterized by comprising the following steps:
s1, coupling and connecting the ultrasonic probe with the acoustic test standard part matched with the ultrasonic probe;
s2, the ultrasonic host sends a pulse signal to a transmission channel where a specific array element in the ultrasonic probe is located; after the pulse signal is sent, the ultrasonic host starts an acquisition channel to acquire reflected wave signal data recorded by the specific array element and transmits the reflected wave signal data to a storage module of the ultrasonic host;
s3, after the acquisition channel of the ultrasonic host finishes acquisition, the reflected wave signal data stored in the storage module of the ultrasonic host is sent to an upper computer;
s4, the upper computer performs spectrum analysis operation on the reflected wave signal data to obtain the maximum value of the reflected wave spectrum;
s5, calculating the sensitivity of the specific array element according to the maximum value of the reflected wave frequency spectrum and the maximum value of the specific array element input signal frequency spectrum;
s6, circulating the steps S2-S5, and obtaining the sensitivity of each array element of the ultrasonic probe and the sensitivity average value of all the array elements;
and S7, obtaining the relative sensitivity standard deviation of each array element, comparing the relative sensitivity standard deviation with a reference value, and giving the result of the consistency detection evaluation of the array elements of the ultrasonic probe according to the comparison result.
2. The method for detecting the consistency of the array elements of the ultrasonic probe as claimed in claim 1, wherein: in S1, the acoustic test standard component is coupled to the ultrasonic probe through an ultrasonic coupling agent, the acoustic test standard component is a passive component that reflects the pulse signal through an interface to form the reflected wave signal, and an acoustic impedance of a matching material of the acoustic test standard component is less than 4 MRayls.
3. The method of ultrasonic probe array element consistency detection as claimed in claim 1, wherein the specific array element is an independent array element or a set of several independent array elements.
4. The method of claim 1, wherein the pulse signal is an electrical signal with a single fixed center frequency, and the transmission channel is an electrical signal path.
5. The method of ultrasonic probe array element consistency detection as claimed in claim 1, wherein the spectral analysis operations comprise signal filtering and fast fourier transform.
6. The method for detecting the consistency of the array elements of the ultrasonic probe according to claim 1, wherein the result of the consistency detection evaluation of the array elements of the ultrasonic probe given in S7 specifically includes the following operations: judging whether the relative sensitivity standard deviation of each array element is smaller than a reference value or not; if the array element consistency is less than the standard matrix element consistency, the array element consistency is qualified; otherwise, the consistency of the array elements is unqualified.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101077306A (en) * | 2007-07-05 | 2007-11-28 | 中国计量科学研究院 | Phase controlled ultrasound two-dimension array three-dimensional imaging method and useing thereof |
| CN108132305A (en) * | 2017-12-21 | 2018-06-08 | 飞依诺科技(苏州)有限公司 | A kind of method and apparatus of transducer array element performance test |
| CN108519435A (en) * | 2018-05-23 | 2018-09-11 | 上海金艺检测技术有限公司 | The sensitivity adjustment method of roll barrel rayleigh waves inspection |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2571463B2 (en) * | 1990-09-26 | 1997-01-16 | 日立建機株式会社 | A method of correcting measured values for the sensitivity of an ultrasonic measuring device using an arc array probe |
| JP5358078B2 (en) * | 2007-10-01 | 2013-12-04 | 日立アロカメディカル株式会社 | Ultrasonic probe |
| CN101435798B (en) * | 2007-11-14 | 2011-06-08 | 北京有色金属研究总院 | Ultrasonic wave fast detecting method of granule reinforced aluminum base composite material quality consistency |
| CN106645416B (en) * | 2016-11-29 | 2019-07-12 | 北京卫星制造厂 | A kind of thin-walled CFRP inside pipe fitting quality ultrasound phased array on-line testing method |
| CN111759346B (en) * | 2019-04-02 | 2023-06-09 | 深圳市理邦精密仪器股份有限公司 | Ultrasonic probe array element detection method, equipment and storage medium |
| CN111426401B (en) * | 2020-05-09 | 2021-06-29 | 北方夜视技术股份有限公司 | Testing device and method for counting sensitivity consistency of photon counter |
-
2022
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101077306A (en) * | 2007-07-05 | 2007-11-28 | 中国计量科学研究院 | Phase controlled ultrasound two-dimension array three-dimensional imaging method and useing thereof |
| CN108132305A (en) * | 2017-12-21 | 2018-06-08 | 飞依诺科技(苏州)有限公司 | A kind of method and apparatus of transducer array element performance test |
| CN108519435A (en) * | 2018-05-23 | 2018-09-11 | 上海金艺检测技术有限公司 | The sensitivity adjustment method of roll barrel rayleigh waves inspection |
Non-Patent Citations (1)
| Title |
|---|
| 二维电离室矩阵探测器的光子剂量学性能测试;翟贺争等;《中华放射医学与防护杂志》;20150228;第35卷(第2期);全文 * |
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