CN110613477B - Ultrasonic imaging method and ultrasonic apparatus - Google Patents
Ultrasonic imaging method and ultrasonic apparatus Download PDFInfo
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- 230000017531 blood circulation Effects 0.000 claims abstract description 170
- 238000002604 ultrasonography Methods 0.000 claims abstract description 94
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- 238000012285 ultrasound imaging Methods 0.000 claims description 11
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- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/06—Measuring blood flow
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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/48—Diagnostic techniques
- A61B8/488—Diagnostic techniques involving Doppler signals
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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
- A61B8/585—Automatic set-up of the device
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Abstract
The application discloses an ultrasonic imaging method and ultrasonic equipment, which are used for determining a speed scale of ultrasonic waves, so that blood flow imaging with better effect can be obtained by performing ultrasonic scanning operation through the determined speed scale. The method comprises the following steps: transmitting unfocused ultrasound waves to the target object in a first examination mode; receiving an ultrasonic echo of the unfocused ultrasonic wave returned from the target object to obtain ultrasonic echo data; obtaining an ultrasonic blood flow image of the target object according to the ultrasonic echo data; determining a target blood flow in the ultrasound blood flow image according to the first examination mode; acquiring the correlation results of the pulse Doppler results and/or the color Doppler results of the velocity scales corresponding to the PRFs of different emission pulse repetition frequencies and the target blood flow; determining a target speed scale from the correlation result; and carrying out ultrasonic scanning on the target object according to the PRF corresponding to the target speed scale.
Description
Technical Field
The application relates to the field of medical equipment, in particular to an ultrasonic imaging method and ultrasonic equipment.
Background
Medical ultrasound imaging technology has become an auxiliary diagnostic tool for widespread clinical use. Ultrasonic waves utilize the Doppler effect to detect the movement information of blood flow or tissues in a human body in real time, and are an irreplaceable examination means.
Doppler is a necessary link in the application of ultrasonic imaging technology. According to the Doppler principle, the ultrasonic transmit pulse repetition frequency (pulse repetition frequency, PRF) determines the maximum value of the Doppler velocity that can be measured. In actual operation, the user needs to manually adjust the PRF according to the high-low velocity blood flow characteristics of different parts so that the obtained signal is spread over the whole velocity scale.
However, by manually adjusting the PRF, the adjustment is time-consuming and labor-consuming, and the adjustment accuracy is not high, so that the blood flow imaging effect cannot be optimized.
Disclosure of Invention
Based on the above-mentioned shortcomings of the existing solutions, the present application provides an ultrasound imaging method and an ultrasound apparatus for determining an ultrasound velocity scale, and performing ultrasound scanning operation by using the velocity scale after adjustment, so as to obtain blood flow imaging with better effect.
A first aspect of the present application provides an ultrasound imaging method comprising:
Transmitting unfocused ultrasound waves to the target object in a first examination mode;
receiving an ultrasonic echo of the unfocused ultrasonic wave returned from the target object to obtain ultrasonic echo data;
Obtaining an ultrasonic blood flow image of the target object according to the ultrasonic echo data;
Determining a target blood flow in the ultrasound blood flow image according to the first examination mode;
acquiring the correlation results of the pulse Doppler results and/or the color Doppler results of the velocity scales corresponding to the PRFs of different emission pulse repetition frequencies and the target blood flow;
determining a target speed scale from the correlation result;
and carrying out ultrasonic scanning on the target object according to the PRF corresponding to the target speed scale.
A second aspect of the present application provides an ultrasound imaging method comprising:
Transmitting ultrasonic waves to the target object in a first inspection mode;
Receiving an ultrasonic echo of the ultrasonic wave returned from the target object, and obtaining ultrasonic echo data;
Obtaining an ultrasonic blood flow image of the target object according to the ultrasonic echo data;
Determining a target blood flow in the ultrasound blood flow image according to the first examination mode;
acquiring the correlation results of the pulse Doppler results and/or the color Doppler results of the velocity scales corresponding to the PRFs of different emission pulse repetition frequencies and the target blood flow;
determining a target speed scale from the correlation result;
and carrying out ultrasonic scanning on the target object according to the PRF corresponding to the target speed scale.
A third aspect of the present application provides an ultrasonic apparatus comprising:
A probe;
a transmitting circuit that excites the probe to transmit ultrasonic waves to a target object;
a receiving circuit that receives an ultrasonic echo returned from the target object through the probe to obtain an ultrasonic echo signal;
A processor that processes the ultrasonic echo signal to obtain first state information of the target object;
A display that displays the first status information;
wherein the processor further performs the steps of:
Transmitting unfocused ultrasound waves to the target object in a first examination mode;
receiving an ultrasonic echo of the unfocused ultrasonic wave returned from the target object to obtain ultrasonic echo data;
Obtaining an ultrasonic blood flow image of the target object according to the ultrasonic echo data;
Determining a target blood flow in the ultrasound blood flow image according to the first examination mode;
acquiring the correlation results of the pulse Doppler results and/or the color Doppler results of the velocity scales corresponding to the PRFs of different emission pulse repetition frequencies and the target blood flow;
determining a target speed scale from the correlation result;
and carrying out ultrasonic scanning on the target object according to the PRF corresponding to the target speed scale.
A fourth aspect of the present application provides an ultrasound apparatus comprising:
A probe;
a transmitting circuit that excites the probe to transmit ultrasonic waves to a target object;
a receiving circuit that receives an ultrasonic echo returned from the target object through the probe to obtain an ultrasonic echo signal;
A processor that processes the ultrasonic echo signal to obtain first state information of the target object;
A display that displays the first status information;
wherein the processor further performs the steps of:
Transmitting ultrasonic waves to the target object in a first inspection mode;
Receiving an ultrasonic echo of the ultrasonic wave returned from the target object, and obtaining ultrasonic echo data;
Obtaining an ultrasonic blood flow image of the target object according to the ultrasonic echo data;
Determining a target blood flow in the ultrasound blood flow image according to the first examination mode;
acquiring the correlation results of the pulse Doppler results and/or the color Doppler results of the velocity scales corresponding to the PRFs of different emission pulse repetition frequencies and the target blood flow;
determining a target speed scale from the correlation result;
and carrying out ultrasonic scanning on the target object according to the PRF corresponding to the target speed scale.
A fifth aspect of the present application provides a computer readable storage medium having stored thereon a computer program which when executed by a processor performs the steps of the ultrasound imaging method described above.
From the foregoing, it can be seen that in the embodiment provided by the present application, by performing analysis processing on an ultrasonic blood flow image of a target object, correlation results between velocity scales of different PRFs and pulse doppler results and/or color doppler results of the target blood flow are obtained, and a velocity scale most suitable for the target object is determined from the correlation results, and then, scanning is performed on the target object according to the PRF corresponding to the velocity scale.
Drawings
FIG. 1 is a schematic block diagram of a possible ultrasonic device according to an embodiment of the present application;
FIG. 2 is a flow chart of one possible ultrasound imaging method provided by an embodiment of the present application;
FIG. 3 is a schematic diagram of Doppler data analysis of an ultrasonic blood flow image according to one embodiment of the present application;
Fig. 4 is a schematic diagram showing the correlation results between different possible velocity scales and pulse doppler results according to an embodiment of the present application.
Detailed Description
The embodiment of the application provides an ultrasonic imaging method and ultrasonic equipment, which are used for determining an ultrasonic velocity scale, and can obtain blood flow imaging with better effect by performing ultrasonic scanning operation through the adjusted velocity scale.
The terms "first," "second," "third," "fourth" and the like in the description and in the claims and in the above drawings, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments described herein may be implemented in other sequences than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Fig. 1 is a block diagram schematically illustrating an ultrasound apparatus 10 in accordance with an embodiment of the present application. The ultrasound device 10 may include a probe 100, transmit circuitry 101, transmit/receive selection switch 102, receive circuitry 103, beam forming circuitry 104, a processor 105, and a display 106. The transmit circuit 101 may excite the probe 100 to transmit ultrasonic waves to the target object. The receiving circuit 103 may receive an ultrasonic echo returned from the target object through the probe 100, thereby obtaining an ultrasonic echo signal/data. The ultrasonic echo signals/data are subjected to beam forming processing by a beam forming circuit 104 and then sent to a processor 105. The processor 105 processes the ultrasound echo signals/data to obtain an ultrasound image of the target object or of the interventional object. The ultrasound images obtained by the processor 105 may be stored in the memory 107. These ultrasound images may be displayed on a display 106. The processor 105 is further configured to perform the steps of:
Transmitting unfocused ultrasound waves to the target object in a first examination mode;
receiving an ultrasonic echo of the unfocused ultrasonic wave returned from the target object to obtain ultrasonic echo data;
Obtaining an ultrasonic blood flow image of the target object according to the ultrasonic echo data;
Determining a target blood flow in the ultrasound blood flow image according to the first examination mode;
acquiring the correlation results of the pulse Doppler results and/or the color Doppler results of the velocity scales corresponding to the PRFs of different emission pulse repetition frequencies and the target blood flow;
determining a target speed scale from the correlation result;
and carrying out ultrasonic scanning on the target object according to the PRF corresponding to the target speed scale.
The processor 105 is further configured to perform the steps of:
Transmitting ultrasonic waves to the target object in a first inspection mode;
Receiving an ultrasonic echo of the ultrasonic wave returned from the target object, and obtaining ultrasonic echo data;
Obtaining an ultrasonic blood flow image of the target object according to the ultrasonic echo data;
Determining a target blood flow in the ultrasound blood flow image according to the first examination mode;
acquiring the correlation results of the pulse Doppler results and/or the color Doppler results of the velocity scales corresponding to the PRFs of different emission pulse repetition frequencies and the target blood flow;
determining a target speed scale from the correlation result;
and carrying out ultrasonic scanning on the target object according to the PRF corresponding to the target speed scale. In one embodiment of the present application, the display 106 of the ultrasonic device 10 may be a touch display screen, a liquid crystal display screen, or the like, or may be an independent display device such as a liquid crystal display, a television, or the like, or may be a display screen on an electronic device such as a mobile phone, a tablet computer, or the like, which is independent of the ultrasonic device 10.
In one embodiment of the present application, the memory 107 of the ultrasonic device 10 may be a flash memory card, a solid state memory, a hard disk, or the like.
In one embodiment of the present application, there is also provided a computer readable storage medium storing a plurality of program instructions that, when invoked by the processor 105 for execution, may perform some or all of the steps, or any combination of the steps, of the ultrasound imaging method of various embodiments of the present application.
In one embodiment, the computer readable storage medium may be memory 107, which may be a non-volatile storage medium such as a flash memory card, solid state memory, hard disk, or the like.
In one embodiment of the present application, the processor 105 of the ultrasound device 10 described above may be implemented in software, hardware, firmware, or a combination thereof, and may use circuitry, single or multiple application-specific integrated circuits (ASICs), single or multiple general-purpose integrated circuits, single or multiple microprocessors, single or multiple programmable logic devices, or a combination of the foregoing, or other suitable circuitry or devices, such that the processor 105 may perform the respective steps of the ultrasound imaging methods in the various embodiments of the present application.
Based on this, referring to fig. 2, an ultrasound imaging method according to an embodiment of the present application is applied to an ultrasound apparatus 10, and the ultrasound imaging method includes:
201. In a first examination mode, unfocused ultrasound waves are transmitted to a target object.
In this embodiment, the processor 105 may first determine the current first inspection mode, and then transmit unfocused ultrasound to the target object in the first inspection mode. The first inspection mode includes at least one of the following inspection modes: thyroid examination mode, carotid examination mode, breast examination mode, nerve examination mode, adult abdomen examination mode, obstetrical OB examination mode, kidney examination mode, fetal heart examination mode, adult abdomen examination mode, and transcranial doppler TCI examination mode. Specifically, the ultrasonic waves may be emitted to the target object at the first transmission pulse repetition frequency PRF in the first inspection mode, or may be emitted to the target object at a different PRF in the first inspection mode, which is not particularly limited.
In one embodiment, the ultrasonic wave may be a plane wave or a divergent wave, that is, a plane wave may be emitted to the target object in the first inspection mode, or a focused wave may be emitted to the target object in the first inspection mode.
In one embodiment, the target object may be a face, a spine, a heart, a uterus, a pelvic floor, or the like, or may be other parts of a human tissue, such as a brain, a bone, a liver, or a kidney, or the like, which is not limited herein.
202. And receiving ultrasonic echo of unfocused ultrasonic waves returned from the target object, and obtaining ultrasonic echo data.
In this embodiment, the processor 105 may receive an ultrasonic echo of unfocused ultrasonic waves returned from the target object, and obtain ultrasonic echo data. That is, after transmitting the unfocused ultrasonic wave to the target object, the target object may return an ultrasonic echo corresponding to the unfocused ultrasonic wave, and the processor 105 may process the ultrasonic echo to obtain ultrasonic echo data.
When the non-focused ultrasound is transmitted to the target object according to the first PRF in the first inspection mode, the ultrasound echo data corresponding to the first PRF is obtained, and when the non-focused ultrasound is transmitted to the target object according to the different PRFs in the first inspection mode, the ultrasound echo data corresponding to the different PRFs, that is, each PRF in the different PRFs corresponds to a set of ultrasound echo data, is obtained.
203. An ultrasound blood flow image of the target object is obtained from the ultrasound echo data.
In this embodiment, an ultrasound blood flow image of the target object may be obtained according to the ultrasound echo data, and it may be understood that when the ultrasound blood flow image is generated, data processing such as amplification, digital-to-analog conversion, and beam forming may be performed, and the ultrasound blood flow image of the target object may include a B-type image, a doppler image, a color blood flow image, or a combined display image of the above various images formed by signal processing.
After the ultrasonic blood flow image is obtained, since the blood flow velocity is a change from low velocity to high velocity from the wall of the blood vessel to the center of the blood vessel in the blood vessel actually detected, the blood flow is different in the moving direction relative to the ultrasonic probe (toward the ultrasonic probe and away from the ultrasonic probe) and is represented by two colors of reddening and bluing in the actual image. If the pulse repetition frequency is insufficient, high-speed blood flow data in the blood vessel will undergo color inversion from reddish to bluish or from bluish to reddish. By correcting the portion where the color abrupt change exceeds the threshold value by the color inversion correction function, the color of the portion where the inversion occurs can be corrected back to the correct direction. For multiple co-current blood flow data, in frames where some data is too full, the problem of multiple blood flow data being connected together indistinguishable occurs. By setting higher threshold data, deleting blood flow data with lower threshold and retaining data with larger flow speed, multiple blood flows in the same direction can be effectively distinguished.
204. A target blood flow in the ultrasound blood flow image is determined according to the first examination mode.
In this embodiment, the processor 105 may determine the target blood flow in the ultrasound blood flow image according to the first examination mode. Specifically, the processor 105 performs doppler data analysis on the ultrasonic blood flow image to obtain an analysis result, where the analysis result includes at least one blood flow type (such as small blood flow, arterial blood flow, venous blood flow, etc.); a target blood flow in the ultrasound blood flow image is determined based on the analysis result and the first examination mode. That is, the processor 105 may perform doppler data analysis on the ultrasound blood flow image to obtain at least one blood flow type corresponding to the target object, and at the same time, the examination sites or the blood flow types of the examination corresponding to different examination modes are different, for example, the first examination mode is a thyroid examination mode, and the thyroid only needs to pay attention to small blood flow. Since the analysis result is obtained by performing doppler data analysis on the ultrasound echo data, the target blood flow in the ultrasound blood flow image can be determined from the first examination mode and the analysis result. The following is described in connection with Doppler data analysis of the ultrasound blood flow image of FIG. 3:
Referring to fig. 3, fig. 3 is a schematic diagram of doppler data analysis on an ultrasonic blood flow image according to an embodiment of the present application, where a region 300 is an ultrasonic blood flow image corresponding to a target object, and doppler data analysis is performed on the ultrasonic blood flow image to distinguish color blood flow data characteristics, such as blood flow types of arterial blood flow, venous blood flow or small blood flow, and the like, as shown in fig. 3, the data of a non-blood flow region 304 is 0, and the greater the flow velocity of a blood flow signal region is, the greater the numerical absolute value is. If the morphologically data area is small, it is classified as small blood flow information, such as region 301 in FIG. 3; if the values are relatively stable and the morphological data area is relatively large in the continuous multiframe, it can be determined that the venous information is venous blood flow, as 303 in fig. 3, and 306 is the display of venous blood flow on the flow velocity frame spectrum; if the value remains fluctuating with the heart rate and the morphological data area is relatively large in consecutive frames, it can be determined as arterial information, such as 302 in fig. 3, i.e. arterial blood flow, 305, i.e. a display of arterial blood flow on the flow velocity spectrum (there are positive and negative values due to distinguishing the flow direction relative to the probe flow direction).
205. And acquiring the correlation results of the pulse Doppler results and/or the color Doppler results of the velocity scales corresponding to the different transmission pulse repetition frequencies PRF and the target blood flow.
In this embodiment, since the ultrasound waves can be emitted to the target object in two different manners, the manners of acquiring the correlation results between the pulse doppler results and/or the color doppler results of the velocity scales corresponding to different PRFs and the target blood flow are also different, and the following descriptions respectively apply to:
1. transmitting unfocused ultrasonic waves to a target object by using a first PRF, and acquiring the correlation results of the pulse Doppler results and/or the color Doppler results of the velocity scales corresponding to different transmission pulse repetition frequencies PRF and the target blood flow comprises:
Performing downsampling treatment on the first PRF to obtain ultrasonic echo data corresponding to different PRFs;
Acquiring pulse Doppler results and/or color Doppler results of the target blood flow according to the ultrasonic echo data corresponding to different PRFs;
And correlating the velocity scales corresponding to different PRFs with pulse Doppler results and/or color Doppler results of the target blood flow to obtain correlation results.
That is, the first PRF may be first downsampled to obtain ultrasound echo data corresponding to different PRFs, for example, if the first PRF is 20 times/S, the first PRF may be downsampled to obtain PRF 10 times/S, or may be downsampled according to other multiples, which is not specifically limited; after the first PRF is subjected to downsampling processing to obtain ultrasonic echo data corresponding to different PRFs, pulse doppler results and/or color doppler results of the target blood flow are obtained according to the ultrasonic echo data corresponding to the different PRFs, velocity scales corresponding to the different PRFs are calculated according to the different PRFs (specific calculation modes are not limited herein), and finally, the velocity scales corresponding to the different PRFs are associated with the pulse doppler results and/or the color doppler results of the target blood flow to obtain association results.
2. When non-focused ultrasonic waves are transmitted to a target object according to different PRFs in a first inspection mode, acquiring different correlation results of a velocity scale corresponding to different transmission pulse repetition frequencies PRFs and pulse Doppler results and/or color Doppler results comprises:
Acquiring pulse Doppler results and/or color Doppler results of the target blood flow according to the ultrasonic echo data corresponding to different PRFs;
and correlating the velocity scales corresponding to different PRFs with pulse Doppler results and/or color Doppler results of the target blood flow to obtain the correlation results.
That is, since the unfocused ultrasonic waves are emitted to the target object through different PRFs, an ultrasonic blood flow image corresponding to each PRF in the different PRFs can be obtained, a velocity scale corresponding to the different PFRs can be calculated respectively, meanwhile, the ultrasonic blood flow image corresponding to each PRF in the different PRFs is calculated to obtain a pulse doppler result and/or a color doppler result of the target blood flow under each PRF in the different PRFs, and then the velocity scale corresponding to the different PRFs is correlated with the pulse doppler result and/or the color doppler result of the target blood flow under each PRF in the different PRFs to obtain a correlation result.
206. A target velocity scale is determined from the correlation result.
In this embodiment, the processor 105 may determine the target velocity scale from the correlation results, specifically, the processor 105 may determine, as the target velocity scale, the velocity scale corresponding to the correlation result in which the difference between the amplitude of the pulse doppler result of the target blood flow in the correlation result and the extremum absolute value of the velocity scale is smaller than the first preset threshold, and the processor 105 may further determine, as the target velocity scale, the velocity scale corresponding to the correlation result in which the difference between the maximum blood flow velocity value of the color doppler result of the target blood flow in the correlation result and the extremum absolute value of the velocity scale is smaller than the second preset threshold. The following is described in connection with fig. 4:
Referring to fig. 4, taking correlation results of velocity scales corresponding to 3 different PRFs and pulse doppler results as an example, 401, 402, and 403 are ultrasonic echo data corresponding to different PRFs, velocity scale 407 (extreme values of velocity scale are illustrated by (-100, 100) as an example), and pulse doppler results 404 are corresponding to ultrasonic echo data of PRFs of 401; velocity scale 408 (illustrated in fig. 4 by way of example as the extremum (-50, 50) of the velocity scale) corresponds to the ultrasound echo data of the PRF of pulse doppler results 405 and 402; the velocity scale 409 (illustrated in fig. 4 by way of example as the extremum (-25, 25) of the velocity scale) and the pulse doppler results 406 correspond to the ultrasound echo data of the PRF of 403. As is evident from the figure, the correlation result between the pulse doppler result of 405 and the velocity scale 408 is the most coincident correlation result among the three correlation results, that is, the difference between the amplitude of the pulse doppler result of 405 and the absolute value of the extremum of the velocity scale 408 is smaller than the preset threshold.
It should be noted that, the above description is given taking the correlation result of the pulse doppler result and the velocity scale as an example, and the correlation result of the color doppler result and the velocity scale is similar to this, and detailed description is omitted.
207. And performing ultrasonic scanning on the target object according to the PRF corresponding to the target speed scale.
In this embodiment, after obtaining the target velocity scale, the processor 105 may perform an ultrasonic scanning operation on the target object according to the PRF corresponding to the target velocity scale, specifically, may transmit unfocused ultrasonic waves to the target object according to the PRF corresponding to the target velocity scale, so as to obtain a target correlation result of the pulse doppler result and/or the color doppler result of the target velocity scale and the target blood flow, and display the target correlation result for the user to view.
It should be noted that, the method for obtaining the target correlation result of the pulse doppler result and/or the color doppler result of the target blood flow and the target velocity scale is similar to the method for obtaining the correlation result by correlating the pulse doppler result and/or the color doppler result of the target blood flow and the velocity scale corresponding to different PRFs in step 206, which have been described in detail above, and detailed description thereof is omitted here.
From the foregoing, it can be seen that in the embodiment provided by the present application, by performing analysis processing on an ultrasonic blood flow image of a target object, correlation results between velocity scales of different PRFs and pulse doppler results and/or color doppler results of the target blood flow are obtained, and a velocity scale most suitable for the target object is determined from the correlation results, and then, scanning is performed on the target object according to the PRF corresponding to the velocity scale.
The above description has been given by taking the non-focused ultrasonic wave as an example, but it is needless to say that other types of ultrasonic waves may be used, and the ultrasonic waves include plane waves, divergent waves, or focused waves, for example. It will be appreciated that the manner of ultrasonic imaging corresponding to plane waves, divergent waves or focused waves is similar to that of ultrasonic imaging corresponding to unfocused waves of fig. 2, and detailed description thereof is omitted.
In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be embodied essentially or in part or all of the technical solution or in part in the form of a software product stored in a storage medium, including instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (30)
1. An ultrasound imaging method, comprising:
transmitting unfocused ultrasound waves to the target object in a first inspection mode;
receiving an ultrasonic echo of the unfocused ultrasonic wave returned from the target object to obtain ultrasonic echo data;
Obtaining an ultrasonic blood flow image of the target object according to the ultrasonic echo data;
Determining a target blood flow in the ultrasound blood flow image according to the first examination mode;
acquiring the correlation results of the pulse Doppler results and/or the color Doppler results of the velocity scales corresponding to the PRFs of different emission pulse repetition frequencies and the target blood flow;
determining a target speed scale from the correlation result;
and carrying out ultrasonic scanning on the target object according to the PRF corresponding to the target speed scale.
2. The method of claim 1, wherein transmitting unfocused ultrasound waves to the target object in the first inspection mode comprises:
transmitting unfocused ultrasound waves to the target object in accordance with a first PRF in the first examination mode;
the acquiring the correlation result of the pulse Doppler result and/or the color Doppler result of the velocity scale corresponding to different transmission pulse repetition frequencies PRF and the target blood flow comprises the following steps:
Performing downsampling treatment on the first PRF to obtain ultrasonic echo data corresponding to different PRFs;
Acquiring pulse Doppler results and/or color Doppler results of the target blood flow according to the ultrasonic echo data corresponding to the different PRFs;
And correlating the velocity scales corresponding to the different PRFs with pulse Doppler results and/or color Doppler results of the target blood flow to obtain the correlation results.
3. The method of claim 1, wherein transmitting unfocused ultrasound waves to the target object in the first inspection mode comprises:
transmitting unfocused ultrasound waves to the target object at different PRFs in the first examination mode;
The obtaining different correlation results of the velocity scale corresponding to different transmission pulse repetition frequencies PRF and the pulse doppler result and/or the color doppler result comprises:
Acquiring pulse Doppler results and/or color Doppler results of the target blood flow according to the ultrasonic echo data corresponding to the different PRFs;
And correlating the velocity scales corresponding to the different PRFs with pulse Doppler results and/or color Doppler results of the target blood flow to obtain the correlation results.
4. The method of claim 1, wherein the determining the target blood flow in the ultrasound blood flow image according to the first examination mode comprises:
doppler data analysis is carried out on the ultrasonic blood flow image to obtain an analysis result, wherein the analysis result comprises at least one blood flow type;
A target blood flow in the ultrasound blood flow image is determined based on the analysis result and the first examination mode.
5. The method of claim 1, wherein said determining a target velocity scale from said correlation result comprises:
and determining a velocity scale corresponding to the correlation result that the difference value between the amplitude of the pulse Doppler result of the target blood flow in the correlation result and the extreme value absolute value of the velocity scale is smaller than a first preset threshold value as the target velocity scale.
6. The method of claim 1, wherein said determining a target velocity scale from said correlation result comprises:
and determining a velocity scale corresponding to the correlation result that the difference value between the maximum blood flow velocity value of the color Doppler result of the target blood flow in the correlation result and the extreme value absolute value of the velocity scale is smaller than a second preset threshold value as the target velocity scale.
7. A method according to any one of claims 1 to 6, wherein said ultrasonically scanning the target object in accordance with the PRF corresponding to the target velocity scale comprises:
Transmitting unfocused ultrasonic waves to the target object according to the PRF corresponding to the target velocity scale so as to obtain a target correlation result of the pulse Doppler result and/or the color Doppler result of the target blood flow and the target velocity scale;
And displaying the target association result.
8. The method of any one of claims 1 to 6, wherein the unfocused ultrasound waves comprise plane waves or divergent waves.
9. An ultrasound imaging method, comprising:
Transmitting ultrasonic waves to the target object in a first inspection mode;
Receiving an ultrasonic echo of the ultrasonic wave returned from the target object, and obtaining ultrasonic echo data;
Obtaining an ultrasonic blood flow image of the target object according to the ultrasonic echo data;
Determining a target blood flow in the ultrasound blood flow image according to the first examination mode;
acquiring the correlation results of the pulse Doppler results and/or the color Doppler results of the velocity scales corresponding to the PRFs of different emission pulse repetition frequencies and the target blood flow;
determining a target speed scale from the correlation result;
and carrying out ultrasonic scanning on the target object according to the PRF corresponding to the target speed scale.
10. The method of claim 9, wherein transmitting ultrasound waves to the target object in the first inspection mode comprises:
transmitting ultrasonic waves to the target object according to a first PRF in the first inspection mode;
the acquiring the correlation result of the pulse Doppler result and/or the color Doppler result of the velocity scale corresponding to different transmission pulse repetition frequencies PRF and the target blood flow comprises the following steps:
Performing downsampling treatment on the first PRF to obtain ultrasonic echo data corresponding to different PRFs;
Acquiring pulse Doppler results and/or color Doppler results of the target blood flow according to the ultrasonic echo data corresponding to the different PRFs;
And correlating the velocity scales corresponding to the different PRFs with pulse Doppler results and/or color Doppler results of the target blood flow to obtain the correlation results.
11. The method of claim 9, wherein transmitting ultrasound waves to the target object in the first inspection mode comprises:
Transmitting ultrasonic waves to the target object according to different PRFs in the first inspection mode;
The obtaining different correlation results of the velocity scale corresponding to different transmission pulse repetition frequencies PRF and the pulse doppler result and/or the color doppler result comprises:
Acquiring pulse Doppler results and/or color Doppler results of the target blood flow according to the ultrasonic echo data corresponding to the different PRFs;
And correlating the velocity scales corresponding to the different PRFs with pulse Doppler results and/or color Doppler results of the target blood flow to obtain the correlation results.
12. The method of claim 9, wherein the determining the target blood flow in the ultrasound blood flow image according to the first examination mode comprises:
doppler data analysis is carried out on the ultrasonic blood flow image to obtain an analysis result, wherein the analysis result comprises at least one blood flow type;
A target blood flow in the ultrasound blood flow image is determined based on the analysis result and the first examination mode.
13. The method of claim 9, wherein said determining a target velocity scale from said correlation result comprises:
and determining a velocity scale corresponding to the correlation result that the difference value between the amplitude of the pulse Doppler result of the target blood flow in the correlation result and the extreme value absolute value of the velocity scale is smaller than a first preset threshold value as the target velocity scale.
14. The method of claim 9, wherein said determining a target velocity scale from said correlation result comprises:
and determining a velocity scale corresponding to the correlation result that the difference value between the maximum blood flow velocity value of the color Doppler result of the target blood flow in the correlation result and the extreme value absolute value of the velocity scale is smaller than a second preset threshold value as the target velocity scale.
15. The method of any one of claims 9 to 14, wherein the ultrasound waves comprise plane waves, divergent waves or focused waves.
16. An ultrasound device, comprising:
A probe;
a transmitting circuit that excites the probe to transmit ultrasonic waves to a target object;
a receiving circuit that receives an ultrasonic echo returned from the target object through the probe to obtain an ultrasonic echo signal;
A processor that processes the ultrasonic echo signal to obtain first state information of the target object;
A display that displays the first status information;
wherein the processor further performs the steps of:
Transmitting unfocused ultrasound waves to the target object in a first examination mode;
receiving an ultrasonic echo of the unfocused ultrasonic wave returned from the target object to obtain ultrasonic echo data;
Obtaining an ultrasonic blood flow image of the target object according to the ultrasonic echo data;
Determining a target blood flow in the ultrasound blood flow image according to the first examination mode;
acquiring the correlation results of the pulse Doppler results and/or the color Doppler results of the velocity scales corresponding to the PRFs of different emission pulse repetition frequencies and the target blood flow;
determining a target speed scale from the correlation result;
and carrying out ultrasonic scanning on the target object according to the PRF corresponding to the target speed scale.
17. The ultrasound device of claim 16, wherein the processor transmitting unfocused ultrasound waves to the target object in a first inspection mode comprises:
transmitting unfocused ultrasound waves to the target object in accordance with a first PRF in the first examination mode;
The processor obtaining correlation results of the velocity scales corresponding to different transmission pulse repetition frequencies PRF and pulse doppler results and/or color doppler results of the target blood flow includes:
Performing downsampling treatment on the first PRF to obtain ultrasonic echo data corresponding to different PRFs;
Acquiring pulse Doppler results and/or color Doppler results of the target blood flow according to the ultrasonic echo data corresponding to the different PRFs;
And correlating the velocity scales corresponding to the different PRFs with pulse Doppler results and/or color Doppler results of the target blood flow to obtain the correlation results.
18. The ultrasound device of claim 16, wherein the processor transmitting unfocused ultrasound waves to the target object in a first inspection mode comprises:
transmitting unfocused ultrasound waves to the target object at different PRFs in the first examination mode;
the processor obtaining different correlation results of the velocity scale corresponding to different transmission pulse repetition frequencies PRF and the pulse doppler results and/or the color doppler results comprises:
Acquiring pulse Doppler results and/or color Doppler results of the target blood flow according to the ultrasonic echo data corresponding to the different PRFs;
And correlating the velocity scales corresponding to the different PRFs with pulse Doppler results and/or color Doppler results of the target blood flow to obtain the correlation results.
19. The ultrasound device of claim 16, wherein the processor determining a target blood flow in the ultrasound blood flow image according to the first examination mode comprises:
doppler data analysis is carried out on the ultrasonic blood flow image to obtain an analysis result, wherein the analysis result comprises at least one blood flow type;
A target blood flow in the ultrasound blood flow image is determined based on the analysis result and the first examination mode.
20. The ultrasound device of claim 16, wherein the processor determining a target velocity scale from the correlation result comprises:
and determining a velocity scale corresponding to the correlation result that the difference value between the amplitude of the pulse Doppler result of the target blood flow in the correlation result and the extreme value absolute value of the velocity scale is smaller than a first preset threshold value as the target velocity scale.
21. The ultrasound device of claim 16, wherein the processor determining a target velocity scale from the correlation result comprises:
and determining a velocity scale corresponding to the correlation result that the difference value between the maximum blood flow velocity value of the color Doppler result of the target blood flow in the correlation result and the extreme value absolute value of the velocity scale is smaller than a second preset threshold value as the target velocity scale.
22. The ultrasound device of any one of claims 16 to 21, wherein the processor performing an ultrasound scan of the target object in accordance with the PRF for the target velocity scale comprises:
Transmitting unfocused ultrasonic waves to the target object according to the PRF corresponding to the target velocity scale so as to obtain a target correlation result of the pulse Doppler result and/or the color Doppler result of the target blood flow and the target velocity scale;
And displaying the target association result.
23. The ultrasound device of any one of claims 16 to 21, wherein the unfocused ultrasound waves comprise plane waves or divergent waves.
24. An ultrasound device, comprising:
A probe;
a transmitting circuit that excites the probe to transmit ultrasonic waves to a target object;
a receiving circuit that receives an ultrasonic echo returned from the target object through the probe to obtain an ultrasonic echo signal;
A processor that processes the ultrasonic echo signal to obtain first state information of the target object;
A display that displays the first status information;
wherein the processor further performs the steps of:
Transmitting ultrasonic waves to the target object in a first inspection mode;
Receiving an ultrasonic echo of the ultrasonic wave returned from the target object, and obtaining ultrasonic echo data;
Obtaining an ultrasonic blood flow image of the target object according to the ultrasonic echo data;
Determining a target blood flow in the ultrasound blood flow image according to the first examination mode;
acquiring the correlation results of the pulse Doppler results and/or the color Doppler results of the velocity scales corresponding to the PRFs of different emission pulse repetition frequencies and the target blood flow;
determining a target speed scale from the correlation result;
and carrying out ultrasonic scanning on the target object according to the PRF corresponding to the target speed scale.
25. The ultrasound device of claim 24, wherein the processor transmitting ultrasound waves to the target object in a first inspection mode comprises:
transmitting ultrasonic waves to the target object according to a first PRF in the first inspection mode;
The processor obtaining correlation results of the velocity scales corresponding to different transmission pulse repetition frequencies PRF and pulse doppler results and/or color doppler results of the target blood flow includes:
Performing downsampling treatment on the first PRF to obtain ultrasonic echo data corresponding to different PRFs;
Acquiring pulse Doppler results and/or color Doppler results of the target blood flow according to the ultrasonic echo data corresponding to the different PRFs;
And correlating the velocity scales corresponding to the different PRFs with pulse Doppler results and/or color Doppler results of the target blood flow to obtain the correlation results.
26. The ultrasound device of claim 24, wherein the processor transmitting ultrasound waves to the target object in a first inspection mode comprises:
Transmitting ultrasonic waves to the target object according to different PRFs in the first inspection mode;
the processor obtaining different correlation results of the velocity scale corresponding to different transmission pulse repetition frequencies PRF and the pulse doppler results and/or the color doppler results comprises:
Acquiring pulse Doppler results and/or color Doppler results of the target blood flow according to the ultrasonic echo data corresponding to the different PRFs;
And correlating the velocity scales corresponding to the different PRFs with pulse Doppler results and/or color Doppler results of the target blood flow to obtain the correlation results.
27. The ultrasound device of claim 24, wherein the processor determining a target blood flow in the ultrasound blood flow image according to the first examination mode comprises:
doppler data analysis is carried out on the ultrasonic blood flow image to obtain an analysis result, wherein the analysis result comprises at least one blood flow type;
A target blood flow in the ultrasound blood flow image is determined based on the analysis result and the first examination mode.
28. The ultrasound device of claim 24, wherein the processor determining a target velocity scale from the correlation result comprises:
and determining a velocity scale corresponding to the correlation result that the difference value between the amplitude of the pulse Doppler result of the target blood flow in the correlation result and the extreme value absolute value of the velocity scale is smaller than a first preset threshold value as the target velocity scale.
29. The ultrasound device of claim 24, wherein the processor determining a target velocity scale from the correlation result comprises:
and determining a velocity scale corresponding to the correlation result that the difference value between the maximum blood flow velocity value of the color Doppler result of the target blood flow in the correlation result and the extreme value absolute value of the velocity scale is smaller than a second preset threshold value as the target velocity scale.
30. The ultrasound device of any one of claims 24 to 29, wherein the ultrasound waves comprise plane waves, divergent waves or focused waves.
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