CN208511051U - A kind of synthetic aperture supersonic imaging device - Google Patents
A kind of synthetic aperture supersonic imaging device Download PDFInfo
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- CN208511051U CN208511051U CN201720884472.7U CN201720884472U CN208511051U CN 208511051 U CN208511051 U CN 208511051U CN 201720884472 U CN201720884472 U CN 201720884472U CN 208511051 U CN208511051 U CN 208511051U
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Abstract
The utility model discloses a kind of synthetic aperture supersonic imaging devices.The utility model includes ultrasonic host system, image display system, data processing system and ultrasound transducer system.The system complexity of the prior art is optimized in the utility model, realizes the portable breakthrough of ultrasonic system, has the characteristics that acoustical power is low, image quality is high, control mode is flexible, low in energy consumption.
Description
Technical field
The utility model relates to medical supersonic detecting devices field more particularly to a kind of synthetic aperture supersonic imaging devices.
Background technique
Medical ultrasound image technology plays an important role in modern medicine image technology, with other diagnostic imaging skills
Art is compared, real-time, noninvasive, the portable and inexpensive favor for being particularly subject to medical staff and patient of ultrasonic diagnostic imaging.To the greatest extent
Pipe is in this way, the portable contradiction between diagnostic image of ultrasonic imaging is solved still without sufficient.Current ultrasonic diagnostic equipment
Physical channel number limitation under the premise of guaranteeing image property due to ultrasonic system itself is still unable to reach as mobile communication
The same portable convenient of equipment.
The main indicator for measuring diagnostic ultrasound images includes: the time of image spatial resolution, the contrast of image, image
Resolution ratio.The port number of ultrasonic system fundamentally determines the above index, while also determining the area of system, volume etc. just
Take formula index.Current portable ultrasound system is provided to guarantee the quality of image, can not carry out on system channel number appropriate
Association can only reduce device area and volume on channel link by the improvement of electronic fabrication processes technology, meet as far as possible
Portable requirement.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of synthetic aperture supersonic imaging device, for existing
Deficiency in technology solves ultrasonic diagnostic equipment with the portable breakthrough of the complexity of optimization system and realization ultrasonic system
Physical channel number limitation under the premise of guaranteeing image property due to ultrasonic system itself is still unable to reach as mobile communication
The problem of equipment the same portable convenient.
In order to achieve the above objectives, the technical solution of the utility model is as follows: a kind of synthetic aperture supersonic imaging device, including
Ultrasonic host system, image display system, data processing system and ultrasound transducer system；The ultrasound host system is to include
The Vltrasonic device main body of FPGA processor；The ultrasound transducer system is connect with the ultrasonic host system；The ultrasound is changed
Can device system ultrasonic wave for transmitting and receiving, and realize the conversion of electric signal and ultrasonic wave；The data processing system is to institute
The electric signal for stating ultrasound transducer system feedback carries out data processing and forms image information；Described image display system is to the number
It is performed image display according to the image information that processing system is formed.
As a kind of preferred embodiment of above-mentioned apparatus, the ultrasound transducer system includes probe, energy applicator, mould
Quasi- front-end module transmits and receives selection switch；The analog front-end module includes voltage control Amplifier and analog-to-digital conversion；It is described
Analog front-end module, transmitting and receiving selection switch, energy applicator, probe are sequentially connected.
As a kind of preferred embodiment of above-mentioned apparatus, the FPGA processor includes driving unit, ultrasound unit, wave beam conjunction
At unit and low-pass filter unit；The driving unit is connect to drive the energy to apply dress with the energy applicator
It sets；The ultrasound unit and transmitting and receiving selection switch connection are to control ultrasound transducer system transmitting and receive ultrasound
Wave；The Beam synthesis unit carries out synthesis processing to wave beam；The low-pass filter unit carries out low pass filtered to the wave beam of synthesis
Wave processing.
As a kind of preferred embodiment of above-mentioned apparatus, the data processing system includes demodulation, the filtering, coordinate to signal
The data processing of conversion.
The utility model carries out the scanning of a frame image in the following ways when operating:
S1: being controlled by the ultrasonic host system, control the ultrasound transducer system from side to the other side with
Synthesis emission mode is emitted, and is scanned to tissue；Emission mode is synthesized according to configuration, is led to every time with system physical
The maximum value of road number is emitted；
S2: switching ultrasonic engine control system, switchs to synthesize corresponding synthesis reception pattern under emission mode, receiving channel
Data carry out synthesis emission mode and synthesize the Beam synthesis processing under reception pattern, and the scanning beam of formation is in data processing
Caching process is carried out in system.
S3: the synthesis emission mode and synthesis reception pattern in S1-S2 are repeated, emission mode is synthesized each time and synthesis connects
It receives in pattern cycle and processing all is overlapped to the wave beam of the secondary formation and the last wave beam formed, until entirely synthesizing transmitting
Scan line is formed after mode and synthesis reception pattern.
S4: scan line forms image by the data processing system, carries out ultrasound by described image display system and examines
The display of disconnected image.
Emission array combination is determined in this method, in S1；S1 further include:
It determines the number x of array element in emission mode, the port number c of system, determines that the corresponding standard focusing of x array element is prolonged
When, array combination n >=fix (x/c) of transmitting；
Receiving array combination is determined in this method, in S2；S2 further include:
It determines the number y of array element in reception pattern, the port number c of system, determines that the corresponding standard focusing of y array element is prolonged
When, received array combination m >=fix (y/c)；
In this method, S3 further include:
S3.1: can get max (m, n) a launching beam altogether and receive wave beam, and it is folded that one wave beam of every formation all carries out delay
Add processing, forms complete scan line after being all disposed to a wave beam of max (m, n)；
S3.2: by configuring different delay parameters, a plurality of complete scan line can be formed, and exist to these scan lines
Caching process is carried out in data processing system；
In this method, S4 further include:
To the multi-strip scanning line formed in S3, successively chooses 1 scan-line data and carries out data processing formation image data,
In the process, while S3 step is carried out, reaches and forms new number of scanning lines again after serial process finishes scan-line data
According to.
Through the above technical solutions, the significant beneficial effect of technical solutions of the utility model is:
Acoustical power is low: compared with conventional 32 and the above channel system, the utility model then emits according to 8 channel systems
Power is at least reduced to 1/4.In the special application field required to ultrasound emission power, can play an important role.
Image quality is high: compared to traditional low channel system, the utility model is effectively improved by extending aperture
Channel data amount improves the contrast and spatial resolution of image；By a kind for the treatment of process of multi-beam, compensate for due to
The problem of decline of temporal resolution caused by aperture extends, so that the temporal resolution of system meets the needs of clinical application.
Control mode is flexible, low in energy consumption: induction and conclusion transmitting and received combination are formed under fixed physical port number
Synthetic aperture inductive method, different send-receive is controlled by host system and is combined, realizes that the resource of multi multiplexing is matched
It sets；The time of send-receive process is made full use of in data processing module simultaneously, serial process multi-strip scanning line is also realized
The resource distribution of multi multiplexing, especially multiplier resources, greatly reduce the consumption of resource, convenient for selecting in Project Realization
The functional chip of even lower level reduces power consumption and area.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the schematic diagram of the synthetic aperture supersonic imaging device of the utility model.
Fig. 2 is the basic flow chart of the synthetic aperture imaging principle of the utility model.
Fig. 3 is the synthesis model schematic diagram of the synthetic aperture imaging of the utility model.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
Every other embodiment obtained, fall within the protection scope of the utility model.
In conjunction with Fig. 1, the utility model provides a kind of synthetic aperture supersonic imaging device, including ultrasonic host system, figure
As display system, data processing system and ultrasound transducer system.The ultrasound host system is include FPGA processor super
Acoustic device main body.The ultrasound transducer system is connect with the ultrasonic host system.The ultrasound transducer system is for sending out
Ultrasonic wave is penetrated and received, and realizes the conversion of electric signal and ultrasonic wave.The data processing system is to the ultrasonic transducer system
The electric signal of system feedback carries out data processing and forms image information.Described image display system forms the data processing system
Image information perform image display.
Specifically, the ultrasound transducer system includes probe, energy applicator, analog front-end module, transmitting and receiving
Selection switch；The analog front-end module includes voltage control Amplifier and analog-to-digital conversion；The analog front-end module, transmission connect
Selection switch, energy applicator, probe is received to be sequentially connected.The FPGA processor includes driving unit, ultrasound unit, wave beam
Synthesis unit and low-pass filter unit；The driving unit is connect to drive the energy to apply dress with the energy applicator
It sets；The ultrasound unit and transmitting and receiving selection switch connection are to control ultrasound transducer system transmitting and receive ultrasound
Wave；The Beam synthesis unit carries out synthesis processing to wave beam；The low-pass filter unit carries out low pass filtered to the wave beam of synthesis
Wave processing.The data processing system includes the data processing of demodulation to signal, filtering, coordinate conversion.
Following manner carries out the scanning of a frame image when the utility model operates:
S1: being controlled by the ultrasonic host system, control the ultrasound transducer system from side to the other side with
Synthesis emission mode is emitted, and is scanned to tissue；Emission mode is synthesized according to configuration, is led to every time with system physical
The maximum value of road number is emitted；
S2: switching ultrasonic engine control system, switchs to synthesize corresponding synthesis reception pattern under emission mode, receiving channel
Data carry out synthesis emission mode and synthesize the Beam synthesis processing under reception pattern, and the scanning beam of formation is in data processing
Caching process is carried out in system.
S3: the synthesis emission mode and synthesis reception pattern in S1-S2 are repeated, emission mode is synthesized each time and synthesis connects
It receives in pattern cycle and processing all is overlapped to the wave beam of the secondary formation and the last wave beam formed, until entirely synthesizing transmitting
Scan line is formed after mode and synthesis reception pattern.
S4: scan line forms image by the data processing system, carries out ultrasound by described image display system and examines
The display of disconnected image.
As the supplement and optimization to the above method:
S1 further include: determine that the number x of array element in emission mode, the port number c of system determine the corresponding mark of x array element
Standard focuses delay, array combination n >=fix (x/c) of transmitting；
S2 further include: determine that the number y of array element in reception pattern, the port number c of system determine the corresponding mark of y array element
Standard focuses delay, received array combination m >=fix (y/c)；
S3.1: can get max (m, n) a launching beam altogether and receive wave beam, and it is folded that one wave beam of every formation all carries out delay
Add processing, forms complete scan line after being all disposed to a wave beam of max (m, n)；
S3.2: by configuring different delay parameters, a plurality of complete scan line can be formed, and exist to these scan lines
Caching process is carried out in data processing system；
To the multi-strip scanning line formed in S3, successively chooses 1 scan-line data and carries out data processing formation image data,
In the process, while S3 step is carried out, reaches and forms new number of scanning lines again after serial process finishes scan-line data
According to.
In conjunction with Fig. 2, Fig. 3, it is assumed that kth time scanning mode, the secondary scanning form q scan line altogether, and full frame image shares k*q
Scan line.A send-receive wave beam of each total max (m, n) of scanning mode, enabling wherein primary synthesis model is i.
The i-th kind of emission mode synthesized in the kth time scanning of emission mode is expressed as Tki, wherein i=[1, max (m,
n)].After battery has fired, i-th kind of reception pattern being immediately switched in the kth time scanning of synthesis reception pattern is expressed as Rki.
Then the q item scanning obtained under Tki-Rki transmission and reception pattern is cached in a data processing system according to different delay parameters
Wave beam Bi1~Biq.As i=max (m, n), indicate that this synthetic aperture is scanned, obtaining the complete scan line of q item is B1
~Bq.
It is formed after q scan line, carries out kth+1 time scanning, repeat its transmission reception pattern emits in i-th and receives mould
In formula, other than the Beam synthesis in addition to carrying out this scans, while being demodulated according to the wave beam that i is successively formed kth time, being filtered
The data processings such as wave.All wave beams are all handled using same demodulation filtering data processing module, in entire serial link
On, which requires the wave beam number q≤max (m, n) to be formed.
After forming k*q scan line, the scan image of a frame is formed.
In synthetic aperture imaging principle process in Fig. 2, transmitting and received synthesis model are carried out in detail by Fig. 3
It is thin to illustrate.
In i-th emission process, select corresponding transmitting array element, in i receive process, be switched to corresponding reception
Mode.In transmitting and receive process, the communication channel delay value of every kind of combination refers to following formula:
Wherein, τ indicates to receive or the delay time of transmitting, c indicate the velocity of sound, and z indicates transmitting or receives the depth of focus,
D is the size in aperture.
During synthetic aperture, the formation of wave beam is synthesized by following formula each time:
S (t)=Σ wiSi(t-τi)
SiIt (t) is echo-signal；wiFor matched filter weighted value, generated distance in image after being superimposed for inhibition
Secondary lobe；τiFor delay time；Subscript i indicates energy converter channel number.By above-mentioned specific embodiment, the utility model it is beneficial
Effect is: acoustical power is low: compared with conventional 32 and the above channel system, the utility model then emits function according to 8 channel systems
Rate is at least reduced to 1/4.In the special application field required to ultrasound emission power, can play an important role.
Image quality is high: compared to traditional low channel system, the utility model is effectively improved by extending aperture
Channel data amount improves the contrast and spatial resolution of image；By a kind for the treatment of process of multi-beam, compensate for due to
The problem of decline of temporal resolution caused by aperture extends, so that the temporal resolution of system meets the needs of clinical application.
Control mode is flexible, low in energy consumption: induction and conclusion transmitting and received combination are formed under fixed physical port number
Synthetic aperture inductive method, different send-receive is controlled by host system and is combined, realizes that the resource of multi multiplexing is matched
It sets；The time of send-receive process is made full use of in data processing module simultaneously, serial process multi-strip scanning line is also realized
The resource distribution of multi multiplexing, especially multiplier resources, greatly reduce the consumption of resource, convenient for selecting in Project Realization
The functional chip of even lower level reduces power consumption and area.
The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new
Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest scope consistent with features of novelty.
Claims (4)
1. a kind of synthetic aperture supersonic imaging device, which is characterized in that including ultrasonic host system, image display system, data
Processing system and ultrasound transducer system；The ultrasound host system is the Vltrasonic device main body for including FPGA processor；It is described
Ultrasound transducer system is connect with the ultrasonic host system；Ultrasound transducer system ultrasonic wave for transmitting and receiving,
And realize the conversion of electric signal and ultrasonic wave；The electric signal that the data processing system feeds back the ultrasound transducer system into
Row data processing forms image information；Described image display system carries out figure to the image information that the data processing system is formed
As display.
2. synthetic aperture supersonic imaging device according to claim 1, which is characterized in that the ultrasound transducer system packet
It includes probe, energy applicator, analog front-end module, transmit and receive selection switch；The analog front-end module includes voltage-controlled increasing
Beneficial amplifier and analog-to-digital conversion；The analog front-end module, transmitting and receiving selection switch, energy applicator, probe successively connect
It connects.
3. synthetic aperture supersonic imaging device according to claim 2, which is characterized in that the FPGA processor includes driving
Moving cell, ultrasound unit, Beam synthesis unit and low-pass filter unit；The driving unit is connect with the energy applicator
To drive the energy applicator；The ultrasound unit and transmitting and receiving selection switch connection are to control ultrasonic transducer
System transmitting and reception ultrasonic wave；The Beam synthesis unit carries out synthesis processing to wave beam；The low-pass filter unit pairing
At wave beam carry out low-pass filtering treatment.
4. synthetic aperture supersonic imaging device according to claim 3, which is characterized in that the data processing system includes
Data processing to demodulation, filtering, the coordinate conversion of signal.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107374670A (en) * | 2017-07-20 | 2017-11-24 | 朗昇科技（苏州）有限公司 | A kind of synthetic aperture supersonic imaging device and method |
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| CN107374670A (en) * | 2017-07-20 | 2017-11-24 | 朗昇科技（苏州）有限公司 | A kind of synthetic aperture supersonic imaging device and method |
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Granted publication date: 20190219 Termination date: 20200720 |