CN105167802A - Doppler imaging method and device - Google Patents
Doppler imaging method and device Download PDFInfo
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- CN105167802A CN105167802A CN201510574474.1A CN201510574474A CN105167802A CN 105167802 A CN105167802 A CN 105167802A CN 201510574474 A CN201510574474 A CN 201510574474A CN 105167802 A CN105167802 A CN 105167802A
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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
- A61B8/06—Measuring blood flow
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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
- A61B8/08—Detecting organic movements or changes, e.g. tumours, cysts, swellings
Abstract
The invention discloses a Doppler imaging method. The method includes the following steps that ultrasonic waves are emitted to a preset region to be detected, wherein the preset region includes sampling doors selected by a user; echoes fed back by the preset region are received; beam synthesizing treatment is performed on the echoes to obtain scanning information corresponding to the sampling doors in the preset region; based on the scanning information, Doppler imaging is performed. The invention further discloses a Doppler imaging device. Doppler imaging is performed on the multiple sampling doors at the same time, and therefore movement velocities, in the same time, of blood/tissue, corresponding to the sampling doors, at different positions are accurately compared.
Description
Technical field
The present invention relates to ultrasonic imaging technique field, particularly relate to a kind of Doppler imaging method and device.
Background technology
Pulse Doppler (PulseWaveDoppler is called for short PWD) is the imaging technique relatively commonly used in medical ultrasonic.By the sampling gate (SampleVolume specified to user, be called for short SV) launch ultrasound wave with fixed time interval, then the phase/frequency change in detection of echoes, can the movement velocity distribution of blood flow/tissue of quantitative Analysis SV present position, blood distribution is not in the same time put together and has just been fed back blood flow corresponding to SV position/organize its movement velocity over time yet.
Due to ultrasound wave can only be launched to a sampling gate in existing Doppler imaging method, doppler imaging can only be carried out to a sampling gate at synchronization, therefore cannot compare blood flow/histokinesis's speed of diverse location simultaneously.Although compare by the mode that successively mobile sampling gate carries out doppler imaging to diverse location, but due to blood flow/the organize blood flow state at one time that cannot compare diverse location, be difficult to ensure that patient body can not move or doctor's hands can not move in the process of successively mobile sampling gate, make to compare exactly the blood flow of diverse location/organize blood flow state at one time.
Foregoing, only for auxiliary understanding technical scheme of the present invention, does not represent and admits that foregoing is prior art.
Summary of the invention
Main purpose of the present invention is to provide a kind of Doppler imaging method and device, is intended to carry out doppler imaging to multiple sampling gate simultaneously, to compare blood flow/histokinesis's speed of diverse location simultaneously.
For achieving the above object, a kind of Doppler imaging method provided by the invention, said method comprising the steps of:
Launch ultrasound wave to predeterminable area to be detected, wherein, in described predeterminable area, comprise the sampling gate that user selects;
Receive the echo fed back from described predeterminable area;
Beam synthesis process is carried out to described echo, obtains the scanning information that described in described predeterminable area, sampling gate is corresponding;
Doppler imaging is carried out based on described scanning information.
Preferably, described predeterminable area is 2 dimensional region or 3D region.
Preferably, describedly launch hyperacoustic step to predeterminable area to be detected and comprise:
Apply pulse signal to for launching hyperacoustic transducer, the ultrasonic sound field controlling the transmitting of described transducer covers predeterminable area to be detected.
Preferably, describedly carry out Beam synthesis process to described echo, the step obtaining the scanning information that sampling gate is corresponding described in described predeterminable area comprises:
Beam synthesis process is carried out to described echo, obtains all scanning line information in described predeterminable area;
From all scanning line information, the scanning information corresponding with described sampling gate position is extracted according to the sampling gate position that user selects.
Preferably, described Beam synthesis process is carried out to described echo, also comprises after obtaining the step of the scanning information that sampling gate is corresponding described in described predeterminable area:
All scanning line information in described predeterminable area are carried out buffer memory, from all scanning line information of buffer memory, chooses the scanning information of optional position sampling gate for user.
In addition, for achieving the above object, the present invention also provides a kind of doppler imaging device, and described doppler imaging device comprises:
Transmitter module, for launching ultrasound wave to predeterminable area to be detected, wherein, comprises the sampling gate that user selects in described predeterminable area;
Receiver module, for receiving the echo fed back from described predeterminable area;
Beam synthesis module, for carrying out Beam synthesis process to described echo, obtains the scanning information that described in described predeterminable area, sampling gate is corresponding;
Image-forming module, for carrying out doppler imaging based on described scanning information.
Preferably, described predeterminable area is 2 dimensional region or 3D region.
Preferably, described transmitter module also for:
Apply pulse signal to for launching hyperacoustic transducer, the ultrasonic sound field controlling the transmitting of described transducer covers predeterminable area to be detected.
Preferably, described Beam synthesis module comprises:
Acquiring unit, for carrying out Beam synthesis process to described echo, obtains all scanning line information in described predeterminable area;
Extraction unit, extracts the scanning information corresponding with described sampling gate position for the sampling gate position selected according to user from all scanning line information.
Preferably, described doppler imaging device also comprises:
Cache module, for all scanning line information in described predeterminable area are carried out buffer memory, chooses the scanning information of optional position sampling gate from all scanning line information of buffer memory for user.
A kind of Doppler imaging method that the present invention proposes and device, by launching ultrasound wave to the predeterminable area comprising the sampling gate that user selects; Beam synthesis is carried out to the echo fed back from described predeterminable area, obtains the scanning information of sampling gate described in described predeterminable area.Doppler imaging is carried out based on described scanning information.Owing to being launch ultrasound wave to whole predeterminable area simultaneously, user can select multiple sampling gate in predeterminable area, the scanning information that finally can obtain multiple sampling gate carries out doppler imaging, realize carrying out doppler imaging to multiple sampling gate, thus the diverse location blood flow that more multiple sampling gate is corresponding exactly/organize movement velocity at one time simultaneously.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of Doppler imaging method one embodiment of the present invention;
Fig. 2 is the comparison diagram launching sound field in transmitting sound field in Doppler imaging method one embodiment of the present invention and prior art;
Fig. 3 carries out Beam synthesis process to described echo in Doppler imaging method one embodiment of the present invention, obtains the refinement schematic flow sheet of the scanning information that described in described predeterminable area, sampling gate is corresponding;
Fig. 4 is the comparison diagram of the acoustic beam that in the acoustic beam and prior art that in Doppler imaging method one embodiment of the present invention, Beam synthesis is formed, Beam synthesis is formed;
Fig. 5 is the schematic flow sheet of another embodiment of Doppler imaging method of the present invention;
Fig. 6 is the high-level schematic functional block diagram of doppler imaging device one embodiment of the present invention;
Fig. 7 is the refinement high-level schematic functional block diagram of wave beam synthesis module in doppler imaging device one embodiment of the present invention;
Fig. 8 is the high-level schematic functional block diagram of another embodiment of doppler imaging device of the present invention.
The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.
Detailed description of the invention
Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
In ultrasonic image-forming system, mainly comprise: probe, radiating circuit, receiving circuit, received beam synthesizer, data buffer area, signal processor etc., its operation principle is: the piezoelectric transducer in ultrasonic probe converts the potential pulse be applied to above it excitation to mechanical vibration, thus externally launches ultrasound wave; Ultrasound wave is propagated in medium is as human body, can produce reflection and scattering wave, gets back on transducer; The ultrasonic vibratory energy of returning is transformed into the signal of telecommunication again by transducer, and then the signal of telecommunication is undertaken amplifying by electronic system, enters signal processor after AD conversion; Signal processor generally all comprises received beam synthesis link, forms the reception line paying close attention to position, in addition according to the difference of imaging pattern, carries out the signal processing such as B/COLOR/PWD, complete ultra sonic imaging.
Doppler imaging is the imaging technique relatively commonly used in medical ultrasonic, and Doppler mapping technology, due to can quantitative measurement blood flow/Tissue velocity, also can represent the time dependent rule of blood flow/Tissue velocity in addition, have very large clinical value.And for the diagnosis of part disease, need the blood flow rate comparing different parts, such as when there is speckle in blood vessel, from having speckle and having notable difference without the blood flow rate flow through the blood vessel of speckle, the blood flow rate difference directly comparing different parts contributes to judging the chocking-up degree of blood vessel.And because patient body moves or doctor's hands moves compared result and impacts, directly compare the chocking-up degree that different parts blood flow rate at one time can judge blood vessel more exactly in order to prevent in comparison procedure.Again can the blood flow/Tissue velocity of this sampling gate position of quantitative measurement owing to carrying out doppler imaging to a sampling gate, therefore, when accurately will compare diverse location blood flow/organize movement velocity at one time, need a kind of Doppler imaging method that simultaneously can carry out imaging to multiple sampling gate.
Thus, the invention provides a kind of Doppler imaging method.
With reference to the schematic flow sheet that Fig. 1, Fig. 1 are Doppler imaging method one embodiment of the present invention.
In one embodiment, this Doppler imaging method comprises:
Step S10, launches ultrasound wave to predeterminable area to be detected, wherein, comprises the sampling gate that user selects in described predeterminable area;
In the present embodiment, when needing to compare different parts blood flow rate at one time, need different parts respectively correspondence sampling gate is set, namely need to arrange multiple sampling gate, and doppler imaging carried out to multiple sampling gate simultaneously.Set a predeterminable area according to multiple sampling gate positions that user is arranged, this predeterminable area comprises multiple sampling gates that all users are arranged.Wherein, when multiple sampling gate positions that user selects are positioned at same plane, this predeterminable area can be a 2 dimensional region, comprises the multiple sampling gates in same two dimensional surface; When multiple sampling gate positions that user selects are positioned at Different Plane, this predeterminable area can be a 3D region, comprises the multiple sampling gates in Different Plane.
After setting comprises the predeterminable area of multiple sampling gates that all users select, launch ultrasound wave to this predeterminable area.Utilize the transducers transmit ultrasonic waves in probe in the present embodiment, probe is generally rearranged at equal intervals by the strip piezoelectric transducer that some sizes are identical, and wherein every single piezoelectric transducer is called array element; Or be arranged in two-dimensional matrix shape by array element.In ultrasonic image-forming system, pulse signal is applied as electric pulse to transducer, makes transducer send ultrasound wave.And different pulse signals is applied as used the electric pulse excitations such as different pulse energies, frequency in the different time to different transducers, the shape of the ultrasonic sound field that probe is launched can be changed.
In the present embodiment, by applying different pulse signals to for launching hyperacoustic transducer, control the transmitting situation of transducer in ultrasonic image-forming system, as launched, not launching, emission delay etc., thus the ultrasonic sound field controlling the transmitting of final transducer comprises the predeterminable area of setting, the ultrasonic sound field that namely transducer is launched covers the whole predeterminable area comprising multiple sampling gates that all users select.Like this, multiple sampling gates that in the present embodiment, user selects can receive the ultrasound wave of transmitting simultaneously.As shown in Figure 2, Fig. 2 is the comparison diagram launching sound field in transmitting sound field in Doppler imaging method one embodiment of the present invention and prior art, in comparison diagram, the left side is the transmitting sound field in Doppler imaging method one embodiment of the present invention, compare in the prior art on the right in comparison diagram and launch sound field, transmitting sound field in the present embodiment can cover the predeterminable area comprising multiple sampling gate, launch sound field in prior art and then can only focus on a sampling gate, the region of a sampling gate can only be covered.
Step S20, receives the echo fed back from described predeterminable area;
After transducer launches ultrasound wave to the predeterminable area set, tissue in predeterminable area ultrasonic scatterer or can be reflected back probe, each receive MUT on probe is from the echo of described predeterminable area scattering or reflection, echo is converted to the signal of telecommunication, receiving circuit amplifies the signal of telecommunication, digital signal is become, for subsequent treatment by AD conversion.
Step S30, carries out Beam synthesis process to described echo, obtains the scanning information that described in described predeterminable area, sampling gate is corresponding;
After the process such as each transducer on probe is changed echo, amplification obtain digital signal, by the digital signal after each transducer process according to the position of imaging, carry out combination by different time delay relations to be added, complete the Beam synthesis process to each receive MUT echo.Due to this echo be by the tissue in predeterminable area ultrasonic scatterer or be reflected back probe and formed, and in predeterminable area, comprise multiple sampling gate positions of all users selection, the multiple sampling gate scattering selected by user or the ultrasound wave being reflected back probe is comprised in this echo, therefore, many groups scanning information that multiple sampling gates that user selects are corresponding can be obtained from the data after Beam synthesis is carried out to each receive MUT echo.Wherein, the scanning information that sampling gate is corresponding can comprise amplitude corresponding to sampling gate, phase information etc.
Step S40, carries out doppler imaging based on described scanning information.
After getting many groups scanning information corresponding to multiple sampling gates that user selects, doppler imaging can be carried out based on many group scanning informations respectively.As carried out sound spectrogram and audio computer respectively to many group scanning informations, the operational parameter often organizing scanning information can be the same or different.The spectrogram result of multiple sampling gates of user's selection of final acquisition can show, so that comparison simultaneously on screen.The audio frequency of multiple sampling gate can play specify one of them or several, also can play the audio frequency of all sampling gates simultaneously, in this no limit.
The present embodiment is by launching ultrasound wave to the predeterminable area comprising the sampling gate that user selects; Beam synthesis is carried out to the echo fed back from described predeterminable area, obtains the scanning information of sampling gate described in described predeterminable area.Doppler imaging is carried out based on described scanning information.Owing to being launch ultrasound wave to whole predeterminable area simultaneously, user can select multiple sampling gate in predeterminable area, the scanning information that finally can obtain multiple sampling gate carries out doppler imaging, realize carrying out doppler imaging to multiple sampling gate, thus the diverse location blood flow that more multiple sampling gate is corresponding exactly/organize movement velocity at one time simultaneously.
Further, as shown in Figure 3, above-mentioned steps S30 can comprise:
Step S301, carries out Beam synthesis process to described echo, obtains all scanning line information in described predeterminable area;
Step S302, extracts the scanning information corresponding with described sampling gate position according to the sampling gate position that user selects from all scanning line information.
In the present embodiment, when carrying out Beam synthesis process to described echo, obtain all scanning line information in described predeterminable area, namely the described predeterminable area all scanning lines comprised in scope all can be calculated, the result of Beam synthesis includes the full detail of whole described predeterminable area, in addition, the full detail of whole described predeterminable area is also restored by interpolation.
As shown in Figure 4, Fig. 4 is the comparison diagram of the acoustic beam that in the acoustic beam and prior art that in Doppler imaging method one embodiment of the present invention, Beam synthesis is formed, Beam synthesis is formed, in comparison diagram, the left side is the acoustic beam that in Doppler imaging method one embodiment of the present invention, Beam synthesis is formed, compare the acoustic beam that in comparison diagram, in the prior art of the right, Beam synthesis is formed, the acoustic beam that in the present embodiment, Beam synthesis is formed includes all scanning line information in described predeterminable area, the acoustic beam that in prior art, Beam synthesis is formed then only includes the scanning line information at a sampling gate place, only has single wave beam.
When needing the multiple sampling gates selected user to carry out doppler imaging, the multiple sampling gate positions can selected according to user extract the many group scanning information corresponding with multiple sampling gate position from all scanning line information described predeterminable area after carrying out Beam synthesis to described echo.Particularly, the locus of the sampling gate can selected according to user, data segment in the full detail of the corresponding described predeterminable area of conversion sampling gate, generally also needs to carry out interpolation, extracts scanning information corresponding with the sampling gate position that user selects in the full detail of described predeterminable area.If user have selected multiple sampling gate, then extract and generate the many group scanning information corresponding with each sampling gate, wherein, this scanning information can comprise amplitude corresponding to sampling gate, phase information etc., in this no limit.
As shown in Figure 5, another embodiment of the present invention proposes a kind of Doppler imaging method, on the basis of above-described embodiment, also comprises after above-mentioned steps S30:
All scanning line information in described predeterminable area are carried out buffer memory by step S50, choose the scanning information of optional position sampling gate for user from all scanning line information of buffer memory.
In the present embodiment, further, also all scanning line information in the described predeterminable area obtained can be carried out buffer memory.As can by as described in all scanning line information in predeterminable area be stored to the data buffer area preset, like this, because all scanning line information in described predeterminable area not only comprise scanning information corresponding to multiple sampling gate positions that user selects, also comprise the scanning line information within the scope of multiple sampling gate positions near zone that user selects.Complete to user select multiple sampling gates carry out doppler imaging after, when looking back inspection, based on all scanning line information in the described predeterminable area stored in data buffer area, user is except selecting the data of sampling gate when can check inspection, sampling gate position can also be changed arbitrarily, when checking inspection, select sampling gate position data near sampling gate but not selected.In addition, when looking back inspection, user can also increase/reduce based on all scanning line information in the described predeterminable area stored in data buffer area the quantity of sampling gate, and corresponding sound spectrogram and broadcasting doppler audio number of signals also increase and decrease, practical more flexibly.
The present invention further provides a kind of doppler imaging device.
With reference to the high-level schematic functional block diagram that Fig. 6, Fig. 6 are doppler imaging device one embodiment of the present invention.
In one embodiment, this doppler imaging device comprises:
Transmitter module 01, for launching ultrasound wave to predeterminable area to be detected, wherein, comprises the sampling gate that user selects in described predeterminable area;
In the present embodiment, when needing to compare different parts blood flow rate at one time, need different parts respectively correspondence sampling gate is set, namely need to arrange multiple sampling gate, and doppler imaging carried out to multiple sampling gate simultaneously.Set a predeterminable area according to multiple sampling gate positions that user is arranged, this predeterminable area comprises multiple sampling gates that all users are arranged.Wherein, when multiple sampling gate positions that user selects are positioned at same plane, this predeterminable area can be a 2 dimensional region, comprises the multiple sampling gates in same two dimensional surface; When multiple sampling gate positions that user selects are positioned at Different Plane, this predeterminable area can be a 3D region, comprises the multiple sampling gates in Different Plane.
After setting comprises the predeterminable area of multiple sampling gates that all users select, launch ultrasound wave to this predeterminable area.Utilize the transducers transmit ultrasonic waves in probe in the present embodiment, probe is generally rearranged at equal intervals by the strip piezoelectric transducer that some sizes are identical, and wherein every single piezoelectric transducer is called array element; Or be arranged in two-dimensional matrix shape by array element.In ultrasonic image-forming system, pulse signal is applied as electric pulse to transducer, makes transducer send ultrasound wave.And different pulse signals is applied as used the electric pulse excitations such as different pulse energies, frequency in the different time to different transducers, the shape of the ultrasonic sound field that probe is launched can be changed.
In the present embodiment, by applying different pulse signals to for launching hyperacoustic transducer, control the transmitting situation of transducer in ultrasonic image-forming system, as launched, not launching, emission delay etc., thus the ultrasonic sound field controlling the transmitting of final transducer comprises the predeterminable area of setting, the ultrasonic sound field that namely transducer is launched covers the whole predeterminable area comprising multiple sampling gates that all users select.Like this, multiple sampling gates that in the present embodiment, user selects can receive the ultrasound wave of transmitting simultaneously.
Receiver module 02, for receiving the echo fed back from described predeterminable area;
After transducer launches ultrasound wave to the predeterminable area set, tissue in predeterminable area ultrasonic scatterer or can be reflected back probe, each receive MUT on probe is from the echo of described predeterminable area scattering or reflection, echo is converted to the signal of telecommunication, receiving circuit amplifies the signal of telecommunication, digital signal is become, for subsequent treatment by AD conversion.
Beam synthesis module 03, for carrying out Beam synthesis process to described echo, obtains the scanning information that described in described predeterminable area, sampling gate is corresponding;
After the process such as each transducer on probe is changed echo, amplification obtain digital signal, by the digital signal after each transducer process according to the position of imaging, carry out combination by different time delay relations to be added, complete the Beam synthesis process to each receive MUT echo.Due to this echo be by the tissue in predeterminable area ultrasonic scatterer or be reflected back probe and formed, and in predeterminable area, comprise multiple sampling gate positions of all users selection, the multiple sampling gate scattering selected by user or the ultrasound wave being reflected back probe is comprised in this echo, therefore, many groups scanning information that multiple sampling gates that user selects are corresponding can be obtained from the data after Beam synthesis is carried out to each receive MUT echo.Wherein, the scanning information that sampling gate is corresponding can comprise amplitude corresponding to sampling gate, phase information etc.
Image-forming module 04, for carrying out doppler imaging based on described scanning information.
After getting many groups scanning information corresponding to multiple sampling gates that user selects, doppler imaging can be carried out based on many group scanning informations respectively.As carried out sound spectrogram and audio computer respectively to many group scanning informations, the operational parameter often organizing scanning information can be the same or different.The spectrogram result of multiple sampling gates of user's selection of final acquisition can show, so that comparison simultaneously on screen.The audio frequency of multiple sampling gate can play specify one of them or several, also can play the audio frequency of all sampling gates simultaneously, in this no limit.
The present embodiment is by launching ultrasound wave to the predeterminable area comprising the sampling gate that user selects; Beam synthesis is carried out to the echo fed back from described predeterminable area, obtains the scanning information of sampling gate described in described predeterminable area.Doppler imaging is carried out based on described scanning information.Owing to being launch ultrasound wave to whole predeterminable area simultaneously, user can select multiple sampling gate in predeterminable area, the scanning information that finally can obtain multiple sampling gate carries out doppler imaging, realize carrying out doppler imaging to multiple sampling gate, thus the diverse location blood flow that more multiple sampling gate is corresponding exactly/organize movement velocity at one time simultaneously.
Further, as shown in Figure 7, above-mentioned Beam synthesis module 03 can comprise:
Acquiring unit 031, for carrying out Beam synthesis process to described echo, obtains all scanning line information in described predeterminable area;
Extraction unit 032, extracts the scanning information corresponding with described sampling gate position for the sampling gate position selected according to user from all scanning line information.
In the present embodiment, when carrying out Beam synthesis process to described echo, obtain all scanning line information in described predeterminable area, namely the described predeterminable area all scanning lines comprised in scope all can be calculated, the result of Beam synthesis includes the full detail of whole described predeterminable area, in addition, the full detail of whole described predeterminable area is also restored by interpolation.
When needing the multiple sampling gates selected user to carry out doppler imaging, the multiple sampling gate positions can selected according to user extract the many group scanning information corresponding with multiple sampling gate position from all scanning line information described predeterminable area after carrying out Beam synthesis to described echo.Particularly, the locus of the sampling gate can selected according to user, data segment in the full detail of the corresponding described predeterminable area of conversion sampling gate, generally also needs to carry out interpolation, extracts scanning line information corresponding with the sampling gate position that user selects in the full detail of described predeterminable area.If user have selected multiple sampling gate, then extract and generate the many group scanning information corresponding with each sampling gate, wherein, this scanning information can comprise amplitude corresponding to sampling gate, phase information etc., in this no limit.
As shown in Figure 8, another embodiment of the present invention proposes a kind of doppler imaging device, on the basis of above-described embodiment, also comprises:
Cache module 05, for all scanning line information in described predeterminable area are carried out buffer memory, chooses the scanning information of optional position sampling gate from all scanning line information of buffer memory for user.
In the present embodiment, further, also all scanning line information in the described predeterminable area obtained can be carried out buffer memory.As can by as described in all scanning line information in predeterminable area be stored to the data buffer area preset, like this, because all scanning line information in described predeterminable area not only comprise scanning information corresponding to multiple sampling gate positions that user selects, also comprise the scanning line information within the scope of multiple sampling gate positions near zone that user selects.Complete to user select multiple sampling gates carry out doppler imaging after, when looking back inspection, based on all scanning line information in the described predeterminable area stored in data buffer area, user is except selecting the data of sampling gate when can check inspection, sampling gate position can also be changed arbitrarily, when checking inspection, select sampling gate position data near sampling gate but not selected.In addition, when looking back inspection, user can also increase/reduce based on all scanning line information in the described predeterminable area stored in data buffer area the quantity of sampling gate, and corresponding sound spectrogram and broadcasting doppler audio number of signals also increase and decrease, practical more flexibly.
The invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.Through the above description of the embodiments, those skilled in the art can be well understood to the mode that above-described embodiment method can add required general hardware platform by software and realize, hardware can certainly be passed through, but in a lot of situation, the former is better embodiment.Based on such understanding, technical scheme of the present invention can embody with the form of software product the part that prior art contributes in essence in other words, this computer software product is stored in a storage medium (as ROM/RAM, magnetic disc, CD), comprising some instructions in order to make a station terminal equipment (can be mobile phone, computer, server, or the network equipment etc.) perform method described in each embodiment of the present invention.
These are only the preferred embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (10)
1. a Doppler imaging method, is characterized in that, said method comprising the steps of:
Launch ultrasound wave to predeterminable area to be detected, wherein, in described predeterminable area, comprise the sampling gate that user selects;
Receive the echo fed back from described predeterminable area;
Beam synthesis process is carried out to described echo, obtains the scanning information that described in described predeterminable area, sampling gate is corresponding;
Doppler imaging is carried out based on described scanning information.
2. Doppler imaging method as claimed in claim 1, it is characterized in that, described predeterminable area is 2 dimensional region or 3D region.
3. Doppler imaging method as claimed in claim 1 or 2, is characterized in that, describedly launches hyperacoustic step to predeterminable area to be detected and comprises:
Apply pulse signal to for launching hyperacoustic transducer, the ultrasonic sound field controlling the transmitting of described transducer covers predeterminable area to be detected.
4. Doppler imaging method as claimed in claim 3, is characterized in that, describedly carries out Beam synthesis process to described echo, and the step obtaining the scanning information that sampling gate is corresponding described in described predeterminable area comprises:
Beam synthesis process is carried out to described echo, obtains all scanning line information in described predeterminable area;
From all scanning line information, the scanning information corresponding with described sampling gate position is extracted according to the sampling gate position that user selects.
5. Doppler imaging method as claimed in claim 4, is characterized in that, describedly carries out Beam synthesis process to described echo, also comprises after obtaining the step of the scanning information that sampling gate is corresponding described in described predeterminable area:
All scanning line information in described predeterminable area are carried out buffer memory, from all scanning line information of buffer memory, chooses the scanning information of optional position sampling gate for user.
6. a doppler imaging device, is characterized in that, described doppler imaging device comprises:
Transmitter module, for launching ultrasound wave to predeterminable area to be detected, wherein, comprises the sampling gate that user selects in described predeterminable area;
Receiver module, for receiving the echo fed back from described predeterminable area;
Beam synthesis module, for carrying out Beam synthesis process to described echo, obtains the scanning information that described in described predeterminable area, sampling gate is corresponding;
Image-forming module, for carrying out doppler imaging based on described scanning information.
7. doppler imaging device as claimed in claim 6, it is characterized in that, described predeterminable area is 2 dimensional region or 3D region.
8. doppler imaging device as claimed in claims 6 or 7, is characterized in that, described transmitter module also for:
Apply pulse signal to for launching hyperacoustic transducer, the ultrasonic sound field controlling the transmitting of described transducer covers predeterminable area to be detected.
9. doppler imaging device as claimed in claim 8, it is characterized in that, described Beam synthesis module comprises:
Acquiring unit, for carrying out Beam synthesis process to described echo, obtains all scanning line information in described predeterminable area;
Extraction unit, extracts the scanning information corresponding with described sampling gate position for the sampling gate position selected according to user from all scanning line information.
10. doppler imaging device as claimed in claim 9, is characterized in that, also comprise:
Cache module, for all scanning line information in described predeterminable area are carried out buffer memory, chooses the scanning information of optional position sampling gate from all scanning line information of buffer memory for user.
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| CN201510574474.1A CN105167802B (en) | 2015-09-10 | 2015-09-10 | Doppler imaging method and device |
| PCT/CN2016/097866 WO2017041668A1 (en) | 2015-09-10 | 2016-09-02 | Doppler imaging method and apparatus |
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| CN201510574474.1A CN105167802B (en) | 2015-09-10 | 2015-09-10 | Doppler imaging method and device |
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| WO2017041668A1 (en) * | 2015-09-10 | 2017-03-16 | 深圳华声医疗技术有限公司 | Doppler imaging method and apparatus |
| CN106725599A (en) * | 2016-12-30 | 2017-05-31 | 飞依诺科技(苏州)有限公司 | A kind of imaging method and device based on plane wave |
| CN107041763A (en) * | 2016-12-14 | 2017-08-15 | 惠尔图像公司 | Ultrasonic spectral Doppler imaging method |
| WO2018000342A1 (en) * | 2016-06-30 | 2018-01-04 | 深圳迈瑞生物医疗电子股份有限公司 | Method and system for ultrasonic fluid spectral doppler imaging |
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| WO2017041668A1 (en) | 2017-03-16 |
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