CN115804620A - Display method of myocardial functional parameters and ultrasonic imaging system - Google Patents
Display method of myocardial functional parameters and ultrasonic imaging system Download PDFInfo
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Abstract
A display method of myocardial functional parameters and an ultrasonic imaging system are provided, the method comprises: acquiring an ultrasound image of a heart of a target object; obtaining myocardial function parameters of a plurality of myocardial segments of the heart based on the ultrasound image; generating a bull's eye plot segment model based on the myocardial function parameters of the plurality of myocardial segments, the bull's eye plot segment model comprising myocardial segment regions in one-to-one correspondence with the myocardial segments, the myocardial segment regions being used to represent the myocardial function parameters of the corresponding myocardial segments; and obtaining a mapping relation between the myocardial segment region and a preset coronary artery graph according to the blood supply relation between the myocardial segment and the coronary artery, and displaying the bull's eye graph segment model and the coronary artery graph in an overlapping mode based on the mapping relation. The bull's eye picture segment model and the coronary artery graph are displayed in a correlated mode, the blood supply relation of the coronary artery to the myocardial segment can be reflected, and diagnosis efficiency of doctors is improved.
Description
Technical Field
The present application relates to the field of ultrasound imaging technologies, and in particular, to a method for displaying myocardial functional parameters and an ultrasound imaging system.
Background
As an important branch of clinical medicine, with the development of cardiovascular pathology, methods for diagnosing cardiovascular diseases, whether non-invasive or invasive, are emerging, replaced and improved. The ultrasonic imaging technology belongs to a non-invasive imaging technology, is simple and convenient to operate, has strong repeatability, can display anatomical images of the heart and the great vessels, can observe physiological activity conditions of the heart and the great vessels in real time, and provides valuable diagnostic data, so that the ultrasonic imaging technology is well received attention of clinicians and is continuously popularized and applied.
Myocardial function parameters derived based on ultrasound imaging techniques are typically displayed according to the 16-segment model or the 17-segment model recommended by the american society for echocardiography. When a doctor finds that a certain wall segment of the heart of a patient has an abnormality through an echocardiogram, the doctor needs to correlate the position of a cardiac muscle in the brain with the coronary artery supplying blood to the cardiac muscle to deduce which coronary artery of the patient may have the abnormality. The diagnosis process is extremely high in dependence on the experience of doctors, and particularly, when the wall segment of the patient is more abnormal or the number of patients is more, more time is consumed, and the diagnosis efficiency is low.
Disclosure of Invention
In this summary, concepts in a simplified form are introduced that are further described in the detailed description. This summary of the application is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.
A first aspect of an embodiment of the present application provides a method for displaying myocardial function parameters, where the method includes: acquiring an ultrasound image of a heart of a target object; obtaining myocardial function parameters of a plurality of myocardial segments of the heart based on the ultrasound image; generating a bull's eye plot segment model based on the myocardial function parameters of the plurality of myocardial segments, the bull's eye plot segment model comprising myocardial segment regions in one-to-one correspondence with the myocardial segments, the myocardial segment regions being used to represent the myocardial function parameters of the corresponding myocardial segments; and obtaining a mapping relation between the myocardial segment region and a preset coronary artery graph according to the blood supply relation between the myocardial segment and the coronary artery, and displaying the bull's eye graph segment model and the preset coronary artery graph in an overlapping mode based on the mapping relation.
In one embodiment, the preset coronary artery pattern comprises at least one of a right coronary artery pattern, a circumflex pattern, and an anterior descending pattern.
In one embodiment, the displaying the bull's eye graph segment model and the preset coronary artery graph in an overlapping manner based on the mapping relationship includes: and displaying the coronary artery graph and the myocardial segment region with the mapping relationship in an overlapping mode to have the same image characteristics.
In one embodiment, the displaying the bullseye chart segment model and the preset coronary artery graph in an overlapping manner based on the mapping relation comprises: determining a target myocardial segment region in the bull's eye image segment model; determining a target coronary artery graph which has a mapping relation with the target myocardial segment region in the preset coronary artery graph; highlighting the target myocardial segment region with the target coronary artery graph.
In one embodiment, the determining the target myocardial segment region in the bull's eye segment model comprises: receiving an instruction for determining a target myocardial segment region, and determining the target myocardial segment region according to the instruction.
In one embodiment, the determining the target myocardial segment region in the bull's eye segment model comprises: identifying abnormal positions based on the myocardial function parameters in the bull's eye image segment model, and determining myocardial segment regions corresponding to the abnormal positions as the target myocardial segment regions.
In one embodiment, the displaying the bullseye chart segment model and the preset coronary artery graph in an overlapping manner based on the mapping relation comprises: determining a target coronary artery graph in the preset coronary artery graph; in the bull eye image segment model, determining a target myocardial segment region having a mapping relation with the target coronary artery image; highlighting the target myocardial segment region with the target coronary artery graph.
In one embodiment, the determining a target coronary artery graph in the preset coronary artery graph comprises: receiving an instruction for determining a target coronary artery graph, and determining the target coronary artery graph according to the instruction.
In one embodiment, the myocardial functional parameter comprises a wall motion parameter of the myocardial segment or a perfusion parameter of the myocardial segment.
In one embodiment, the chamber wall motion parameters include at least one of: chamber wall motion speed, chamber wall displacement value, chamber wall strain value, strain rate, rotation angle, and chamber wall motion score; the perfusion parameters include at least one of: perfusion intensity values and perfusion scores and time intensity curve fit model parameters.
A second aspect of the embodiments of the present application provides a method for displaying myocardial function parameters, where the method includes: acquiring an ultrasound image of a heart of a target object; obtaining myocardial function parameters of a plurality of myocardial segments of the heart based on the ultrasound images; generating a bull's eye plot segment model based on the myocardial function parameters of the plurality of myocardial segments, the bull's eye plot segment model comprising myocardial segment regions in one-to-one correspondence with the myocardial segments, the myocardial segment regions being used to represent the myocardial function parameters of the corresponding myocardial segments; and obtaining a mapping relation between the myocardial segment region and a preset coronary artery graph according to the blood supply relation between the myocardial segment and the coronary artery, simultaneously displaying the Niu Yantu segment model and the coronary artery graph in different display regions based on the mapping relation, and displaying at least one myocardial segment region in the bull's eye graph segment model and a region corresponding to the same myocardial segment in the coronary artery graph in an associated manner based on the mapping relation.
In one embodiment, the associating and displaying at least one myocardial segment region in the bull's eye image segment model with a region in the coronary artery graph corresponding to the same myocardial segment based on the mapping relationship includes: determining a target myocardial segment region in the bull's eye image segment model; determining a target coronary artery region corresponding to the same myocardial segment as the target myocardial segment region in the preset coronary artery graph based on the mapping relation; and displaying the target coronary artery graph and the target coronary artery region in a correlated mode.
In one embodiment, the determining the target myocardial segment region in the bull's eye segment model comprises: receiving an instruction for determining a target myocardial segment region, and determining the target myocardial segment region according to the instruction.
In one embodiment, the determining the target myocardial segment region in the bull's eye segment model comprises: identifying abnormal positions based on the myocardial function parameters in the bull's eye image segment model, and determining myocardial segment regions corresponding to the abnormal positions as the target myocardial segment regions.
In one embodiment, the associating and displaying at least one myocardial segment region in the bull's eye graph segment model with a region corresponding to the same myocardial segment in the coronary artery graph based on the mapping relationship comprises: determining a target coronary artery region in the preset coronary artery graph; determining a target myocardial segment region having a mapping relation with the target coronary artery region in the bull eye image segment model based on the mapping relation; displaying the target myocardial segment region in association with the target coronary artery region.
In one embodiment, the determining the target coronary artery region in the preset coronary artery graph includes: instructions for determining a target coronary artery region are received, the target coronary artery region being determined according to the instructions.
In one embodiment, the associating the at least one myocardial segment region in the bovine eye segment model with a region in the coronary artery graph corresponding to the same myocardial segment includes: displaying at least one myocardial segment region in the bull's eye segment model as having the same image features as a region in the coronary artery graph corresponding to the same myocardial segment.
A third aspect of the embodiments of the present application provides an ultrasound imaging system, including: an ultrasonic probe; the transmitting circuit is used for exciting the ultrasonic probe to transmit ultrasonic waves to target tissues; the receiving circuit is used for controlling the ultrasonic probe to receive the echo of the ultrasonic wave so as to obtain an echo signal of the ultrasonic wave; a processor for performing the steps of the method for displaying myocardial function parameters as described above.
According to the display method of the myocardial functional parameters and the ultrasonic imaging system, the bull eye image segment model and the coronary artery image are displayed in a correlation mode, the blood supply relation of the coronary artery to the myocardial segment can be embodied, and the diagnosis efficiency of a doctor is improved.
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In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.
In the drawings:
FIG. 1 shows a schematic block diagram of an ultrasound imaging system according to an embodiment of the present application;
FIG. 2 shows a schematic flow chart of a method of displaying myocardial function parameters according to an embodiment of the present application;
FIG. 3 illustrates a schematic diagram of a superimposed display of a bull's eye plot segment model and a coronary artery graph according to an embodiment of the present application;
FIG. 4 shows a schematic flow chart of a method of displaying myocardial function parameters according to another embodiment of the present application;
FIG. 5 illustrates a diagram showing a bull's eye graph segment model displayed side-by-side with a coronary artery graph according to an embodiment of the present application;
fig. 6 illustrates a schematic diagram of displaying corresponding coronary artery regions based on a target myocardial segment region association, according to an embodiment of the present application;
fig. 7 shows a schematic diagram of displaying corresponding myocardial segment regions based on a target coronary artery region association according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, exemplary embodiments according to the present application will be described in detail below with reference to the accompanying drawings. It should be apparent that the described embodiments are only a few embodiments of the present application, and not all embodiments of the present application, and it should be understood that the present application is not limited to the example embodiments described herein. All other embodiments, which can be derived by a person skilled in the art from the embodiments described in the present application without inventive step, shall fall within the scope of protection of the present application.
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present application. It will be apparent, however, to one skilled in the art, that the present application may be practiced without one or more of these specific details. In other instances, well-known features of the art have not been described in order to avoid obscuring the present application.
It is to be understood that the present application may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the application to those skilled in the art.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. As used herein, the term "and/or" includes any and all combinations of the associated listed items.
In order to provide a thorough understanding of the present application, a detailed structure will be presented in the following description in order to explain the technical solutions presented in the present application. Alternative embodiments of the present application are described in detail below, however, the present application may have other implementations in addition to these detailed descriptions.
Next, an ultrasound imaging system according to an embodiment of the present application is first described with reference to fig. 1, and fig. 1 shows a schematic structural block diagram of an ultrasound imaging system 100 according to an embodiment of the present application.
As shown in fig. 1, the ultrasound imaging system 100 includes an ultrasound probe 110, a transmit circuit 112, a receive circuit 114, a processor 116, and a display 118. Further, the ultrasound imaging system may further include a transmit/receive selection switch 120 and a beam forming module 122, and the transmit circuit 112 and the receive circuit 114 may be connected to the ultrasound probe 110 through the transmit/receive selection switch 120.
The ultrasound probe 110 includes a plurality of transducer elements, which may be arranged in a line to form a linear array, or in a two-dimensional matrix to form an area array, or in a convex array. The transducer elements are used for transmitting ultrasonic waves according to the excitation electric signals or converting the received ultrasonic waves into electric signals, so that each transducer element can be used for realizing the mutual conversion of the electric pulse signals and the ultrasonic waves, thereby realizing the transmission of the ultrasonic waves to tissues of a target area of a measured object and also receiving ultrasonic wave echoes reflected back by the tissues. In ultrasound detection, which transducer elements are used for transmitting ultrasound waves and which transducer elements are used for receiving ultrasound waves can be controlled by a transmitting sequence and a receiving sequence, or the transducer elements are controlled to be time-slotted for transmitting ultrasound waves or receiving echoes of ultrasound waves. The transducer elements participating in the ultrasonic wave transmission can be simultaneously excited by the electric signals, so that the ultrasonic waves are transmitted simultaneously; alternatively, the transducer elements participating in the ultrasound beam transmission may be excited by several electrical signals with a certain time interval, so as to continuously transmit ultrasound waves with a certain time interval.
During ultrasound imaging, the transmit circuit 112 sends delay-focused transmit pulses through the transmit/receive selector switch 120 to the ultrasound probe 110. The ultrasonic probe 110 is excited by the transmission pulse to transmit an ultrasonic beam to a tissue in a target region of a measured object, receives an ultrasonic echo with tissue information reflected from the tissue in the target region after a certain time delay, and converts the ultrasonic echo back into an electrical signal again. The receiving circuit 114 receives the electrical signals generated by the ultrasound probe 110, obtains ultrasound echo signals, and sends the ultrasound echo signals to the beam forming module 122, and the beam forming module 122 performs processing such as focusing delay, weighting, and channel summation on the ultrasound echo data, and then sends the ultrasound echo data to the processor 116. The processor 116 performs signal detection, signal enhancement, data conversion, logarithmic compression, and the like on the ultrasonic echo signal to form an ultrasonic image. The ultrasound images obtained by the processor 116 may be displayed on the display 118 or may be stored in the memory 124.
Alternatively, the processor 116 may be implemented as software, hardware, firmware, or any combination thereof, and may use a single or multiple Application Specific Integrated Circuits (ASICs), a single or multiple general purpose Integrated circuits, a single or multiple microprocessors, a single or multiple programmable logic devices, or any combination of the foregoing, or other suitable circuits or devices. Also, the processor 116 may control other components in the ultrasound imaging system 100 to perform the respective steps of the methods in the various embodiments herein.
The display 118 is connected with the processor 116, and the display 118 may be a touch display screen, a liquid crystal display screen, or the like; alternatively, the display 118 may be a separate display, such as a liquid crystal display, a television, or the like, separate from the ultrasound imaging system 100; alternatively, the display 118 may be a display screen of an electronic device such as a smartphone, tablet, etc. The number of the displays 118 may be one or more.
The display 118 may display the ultrasound image obtained by the processor 116. In addition, the display 118 can provide a graphical interface for human-computer interaction for the user while displaying the ultrasound image, and one or more controlled objects are provided on the graphical interface, so that the user can input operation instructions by using the human-computer interaction device to control the controlled objects, thereby executing corresponding control operations. For example, an icon is displayed on the graphical interface, and the icon can be operated by the man-machine interaction device to execute a specific function, such as drawing a region-of-interest box on the ultrasonic image.
Optionally, the ultrasound imaging system 100 may further include a human-computer interaction device other than the display 118, which is connected to the processor 116, for example, the processor 116 may be connected to the human-computer interaction device through an external input/output port, which may be a wireless communication module, a wired communication module, or a combination thereof. The external input/output port may also be implemented based on USB, bus protocols such as CAN, and/or wired network protocols, etc.
The human-computer interaction device may include an input device for detecting input information of a user, where the input information may be, for example, a control instruction for the transmission/reception timing of the ultrasound wave, an operation input instruction for drawing a point, a line, a frame, or the like on the ultrasound wave, or may further include other instruction types. The input device may include one or more of a keyboard, mouse, scroll wheel, trackball, mobile input device (e.g., mobile device with touch screen display, cell phone, etc.), multi-function knob, and the like. The human-computer interaction device may also include an output device such as a printer.
The ultrasound imaging system 100 may also include a memory 124 for storing instructions executed by the processor, storing received ultrasound echoes, storing ultrasound images, and so forth. The memory may be a flash memory card, solid state memory, hard disk, etc. Which may be volatile memory and/or non-volatile memory, removable memory and/or non-removable memory, etc.
It should be understood that the components included in the ultrasound imaging system 100 shown in fig. 1 are merely illustrative and that more or fewer components may be included. This is not limited by the present application.
The method for displaying myocardial function parameters according to the embodiment of the present application is described below with reference to fig. 2, and fig. 2 is a schematic flowchart of a method 200 for displaying myocardial function parameters according to the embodiment of the present application. Specifically, the method 200 for displaying myocardial function parameters in the embodiment of the present application includes the following steps:
in step S210, acquiring an ultrasound image of the heart of the target object;
in step S220, obtaining myocardial function parameters of a plurality of myocardial segments of the heart based on the ultrasound image;
in step S230, generating a bull 'S-eye segment model based on the myocardial function parameters of the plurality of myocardial segments, wherein the bull' S-eye segment model includes myocardial segment regions corresponding to the myocardial segments one by one, and the myocardial segment regions are used for representing the myocardial function parameters of the corresponding myocardial segments;
in step S240, a mapping relationship between the myocardial segment region and a preset coronary artery graph is obtained according to the blood supply relationship between the myocardial segment and the coronary artery, and the bull' S eye graph segment model and the preset coronary artery graph are displayed in an overlapping manner based on the mapping relationship.
The display method 200 of the myocardial functional parameters in the embodiment of the application displays the bull's eye image segment model and the coronary artery image in an overlapping manner based on the mapping relationship between the myocardial segment region and the preset coronary artery image, can present the blood supply relationship between the myocardial segment and the coronary artery, and improves the diagnosis efficiency of doctors.
The ultrasound image of the heart of the target object acquired in step S210 includes, but is not limited to, a grayscale ultrasound image (i.e., B image). Illustratively, an ultrasound scan may be performed in a grayscale imaging mode to obtain an ultrasound image based on the ultrasound imaging system 100 shown in fig. 1. During a scan, transmit circuitry 112 sends a set of delay-focused transmit pulses to ultrasound probe 110 to excite ultrasound probe 110 to transmit ultrasound waves along a cardiac region of a target subject. The receiving circuit 114 controls the ultrasonic probe 110 to receive the ultrasonic echo reflected by the target object, and then converts the ultrasonic echo into an electrical signal, the beam synthesis module 112 performs corresponding delay and weighted summation processing on the ultrasonic echo signal obtained by multiple transmission and reception, so as to implement beam synthesis, and then the ultrasonic echo signal is sent to the processor 116, and is subjected to partial or all image post-processing steps such as denoising, smoothing, enhancing and the like, so as to obtain an ultrasonic image of the heart of the target object.
As shown in fig. 1, the ultrasound imaging system 100 further includes a memory 124, and in some embodiments, the processor 116 obtains the ultrasound image directly from the memory 124. In other embodiments, the processor 116 may also be connected to other devices and obtain the ultrasound images from other devices, or the processor 116 may also be communicatively connected to a server and download the ultrasound images from the server.
The ultrasound image obtained in step S210 may also be a contrast image obtained based on a cardiac acoustic contrast technique. The cardiac acoustic contrast technology utilizes an ultrasonic contrast agent to enhance the scattering of ultrasonic waves on a gas-liquid plane, so as to achieve the purpose of enhancing the strength of echo signals. The cardiac acoustic imaging techniques are mainly classified into myocardial acoustic imaging and cardiac chamber acoustic imaging. The myocardial acoustic radiography can be used for evaluating the myocardial microcirculation perfusion condition, accurately judging the pathological change range and degree of coronary artery microcirculation disturbance and acute and chronic ischemic heart diseases by evaluating myocardial blood flow, and evaluating the reperfusion treatment effect and prognosis; the heart cavity acoustic radiography can clearly display the heart structure and improve the accuracy of the heart function measurement.
In other examples, the ultrasound image obtained in step S210 may also be a tissue doppler image. In the tissue Doppler imaging process, the processor controls the ultrasonic probe to transmit Doppler pulse signals to the heart of a target object and receive echo signals of the Doppler pulse signals, a tissue Doppler frequency spectrum can be obtained based on the echo signals of the Doppler pulse signals, and the tissue Doppler frequency spectrum can quantitatively describe the movement of myocardial tissue. The tissue motion parameters are color coded to obtain a tissue Doppler image.
In step S220, myocardial function parameters of a plurality of myocardial segments of the heart are obtained based on the ultrasound images. The myocardial functional parameters include, but are not limited to, wall motion parameters of individual myocardial segments or perfusion parameters of individual myocardial segments. When the ultrasound image obtained in step S210 is a grayscale image or a tissue doppler image, the myocardial function parameters obtained based on the ultrasound image include wall motion parameters; when the ultrasound image acquired in step S210 is a contrast image, the myocardial function parameter obtained based on the ultrasound image includes a perfusion parameter.
When the grayscale ultrasound image is acquired in step S210, the myocardial function parameters of a plurality of myocardial segments of the heart can be obtained by using a Speckle Tracking technique (Speckle Tracking) in step S220. The spot tracking technology is to track the position of the same ultrasonic spot in the grayscale ultrasonic image so as to determine the position change condition of the corresponding myocardial tissue. The ultrasonic spot is a spot formed by scattering, reflection, interference and other phenomena generated by a fine structure smaller than an incident ultrasonic wavelength in the myocardial tissue. When the movement displacement and deformation of the tissue are small, the speckle pattern of the tissue can be approximately considered to be fixed, so that the movement tracking and quantitative measurement of the specific tissue can be realized by tracking the movement of the specific spot in the B-ultrasonic image. The spot tracking technology can be used for accurately and quantitatively analyzing the motion of each part of the heart, the ultrasonic spots on different positions (endocardium, epicardium and myocardium) of the heart are tracked, the motion conditions of the tissue structures corresponding to the ultrasonic spots, such as the motion speed of the wall of the heart, the displacement of the wall of the heart, the strain of the wall of the heart and the like, can be obtained, and the physiological characteristics of the heart tissue can be quantitatively analyzed through the information. For example, for a patient with a cardiovascular obstruction, the blood supply part of the obstructed blood vessel moves at a lower amplitude than the part with normal blood supply, and the part affected by the obstructed blood vessel moves passively, i.e. the part is pulled by the movement of surrounding tissues during the movement of the heart, so that some movement parameters, such as deformation, strain rate and rotation angle, are obviously abnormal. The spot tracking technology can calculate motion parameters on different parts of the heart by accurately measuring the motion condition of the heart, thereby positioning the abnormal part of the heart motion. In addition to quantitative parameters such as chamber wall displacement values, chamber wall strain values, etc., the chamber wall motion parameters may also include a semi-quantitative chamber wall motion score. For example, the wall motion can be evaluated based on the ultrasound images, and divided into normal motion, motion attenuation, motion disappearance, and contradictory motion, with corresponding scores of 1, 2, 3, and 4.
When obtaining the myocardial function parameters from the contrast images, the perfusion parameters can be obtained from the rise-back intensity of the contrast agent for the individual myocardial segments. The perfusion parameter may be a quantitative physical value, such as a perfusion intensity value, or may be a semi-quantitative perfusion score. For example, myocardial perfusion can be classified into three levels of normal perfusion, perfusion delay, and perfusion defect from the contrast image, with corresponding scores of 1, 2, and 3, respectively.
The perfusion parameters may also be time-intensity curve fitting model parameters including parameters for reflecting blood volume, blood flow velocity and myocardial blood flow, such as time-intensity curve fitting parameters y (t) = a (1-e) -βt ) + C, where t represents time, A is used to reflect blood volume, β is used to reflect blood flow velocity, and A × β is used to reflect myocardial blood flow.
In step S230, a bull' S eye image segment model is generated based on the myocardial function parameters of the plurality of myocardial segments acquired in step S220. The bull's eye image segment model comprises myocardial segment regions corresponding to the myocardial segments one by one, and each myocardial segment region is used for representing myocardial function parameters of the corresponding myocardial segment.
The bull's eye segment model is also called a bullseye chart, and particularly can comprise a two-dimensional Niu Yantu segment model or a three-dimensional bull's eye segment model. The two-dimensional bullseye map segment model divides the myocardium into 17 segments, represented by four concentric rings, each ring corresponding to a left ventricular short axis level. The outermost ring corresponds to the basal segment at the mitral valve level, comprising 6 myocardial segment regions, representing the anterior basal segment, the anterior septal basal segment, the inferior basal segment, and the anterior septal basal segment, respectively; the second ring corresponds to the middle segment and comprises 6 myocardial segment regions respectively representing a front wall middle segment, a front spacing middle segment, a lower wall middle segment, a lower side wall middle segment and a front partition wall middle segment; the third ring corresponds to the apical segment and contains 4 myocardial segment regions representing the anterior wall apical segment, the septal apical segment, the inferior wall apical segment and the lateral wall apical segment, respectively. If a 17-segment model is used, the central position of the segment model of the bull's eye diagram is also provided with a separate central circular ring representing the apex cap. Each myocardial segment region is used to represent a myocardial function parameter of the corresponding myocardial segment, and the myocardial function parameter is the wall motion parameter or perfusion parameter obtained in step S220. Illustratively, the size of the myocardial function parameter may be represented in the bull's eye plot segment model in different colors, shades of gray, textures, etc.
In step S240, a mapping relationship between the myocardial segment region and a preset coronary artery graph is obtained according to the blood supply relationship between the myocardial segment and the coronary artery, and the bull' S eye graph segment model and the coronary artery graph are displayed in an overlapping manner based on the mapping relationship.
The mapping relation between the myocardial segment region and the preset coronary artery graph is obtained according to the blood supply relation between the myocardial segment and the coronary artery, namely the mapping relation is established between each myocardial segment region and the coronary artery image corresponding to the coronary artery supplying blood for the corresponding myocardial segment. Clinical literature shows that a plurality of models exist in the blood supply relation between the myocardial segment and the coronary artery, therefore, a plurality of blood supply relation models can be established in advance according to the clinical literature, and options of the blood supply relation models are provided through a user interaction interface, so that a user can select a specified blood supply relation model through the user interaction interface. After the blood supply relation model selected by the user is determined, the coronary artery and the myocardial segment supplying blood of the coronary artery are associated according to the blood supply relation model, and then the mapping relation between the myocardial segment area and the preset coronary artery graph is determined.
The coronary artery includes a Right Coronary Artery (RCA) and a left coronary artery, the left coronary artery includes a circumflex (LCX) branch and an anterior descending branch (LAD) branch from the main trunk, and the preset coronary artery pattern of the embodiment of the present application includes a right coronary artery pattern, a circumflex pattern and an anterior descending branch pattern since the myocardium is mainly supplied with blood by the right coronary artery, the circumflex and the anterior descending branch. The right coronary artery graph, the circumflex graph and the anterior descending graph can be three graphs which are independent from each other, and can also be three parts in one coronary artery model. In one embodiment, the mapping relationship between the myocardial segment region and the preset coronary artery graph includes a mapping relationship between a right coronary artery graph, a circumflex graph and an anterior descending graph and a corresponding myocardial segment region, the overlaying display of the bull's eye graph segment model and the preset coronary artery graph based on the mapping relationship includes the overlaying display of graphs included in the preset coronary artery graph and the corresponding myocardial segment region respectively, if the graph included in the preset coronary artery graph is the right coronary artery graph, the overlaying display of the right coronary artery graph and a region representing the right coronary artery in the bull's eye graph segment model is performed, and if the preset coronary artery graph further includes the circumflex graph and the anterior descending graph, the overlaying display of the circumflex graph and the anterior descending graph is performed with the corresponding myocardial segment region. For example, in a blood supply relationship model, the myocardial segment supplied with blood by the anterior descending branch includes an anterior basal segment, an anterior septal basal segment, an anterior intermediate segment, an anterior septal intermediate segment, an anterior apical segment, a septal apical segment, and an apical cap, the anterior descending branch graph has a mapping relationship with the anterior basal segment region, the anterior septal intermediate segment region, the anterior apical segment region, the septal apical segment region, and the apical cap region, and the superimposed display of the coronary artery graph and the bull's eye graph segment model includes superimposed display of the anterior descending branch graph on the myocardial segment region.
In another embodiment, the coronary artery graph comprises a plurality of right coronary artery branch graphs, a plurality of circumflex branch graphs and a plurality of anterior descending branch graphs, and the overlaying display of the bull's eye graph segment model and the preset coronary artery graph based on the mapping relation comprises: and displaying at least one right coronary branch graph, at least one circumflex branch graph and at least one anterior descending branch graph in an overlapping mode with the corresponding myocardial segment area.
For example, the right coronary artery includes a conical branch of the artery, a right marginal branch, a sinus node, an atrioventricular node, and a posterior interventricular branch, and accordingly, the right coronary branch graph includes a conical branch graph, a right marginal branch graph, a sinus node graph, an atrioventricular node graph, and a posterior interventricular branch graph. According to the blood supply relationship between each right coronary artery branch and the myocardial segment, the mapping relationship between each right coronary artery branch graph and the myocardial segment area can be respectively determined, and the right coronary artery branch graph and the corresponding myocardial segment area are displayed in an overlapping mode according to the mapping relationship.
Illustratively, referring to fig. 3, each coronary artery graph is displayed superimposed over the corresponding myocardial segment, allowing the user to visually understand the myocardial segment to which each coronary artery supplies blood. In displaying the coronary artery graph, different coronary artery graphs can be displayed in a differentiated manner, in fig. 3, the anterior descending branch (LAD) graph is displayed as a solid line, the Right Coronary Artery (RCA) graph and the circumflex (LCX) graph are displayed as dotted lines in different forms, and in practical application, the anterior descending branch (LAD) graph, the Right Coronary Artery (RCA) graph and the circumflex (LCX) graph can be displayed in different colors, so that a user can distinguish different coronary artery graphs.
Further, while the coronary artery graph and the bull's eye graph segment model are displayed in an overlapping mode, the coronary artery graph and the myocardial segment region with the mapping relation can be displayed in an overlapping mode to have the same image characteristics, and the same image characteristics include but are not limited to the same color, gray scale, texture and the like. Specifically, the right coronary artery graph and the corresponding myocardial segment region can be displayed in an overlapping manner and displayed to have the same image characteristics; and displaying the circumflex branch graph and the corresponding myocardial segment region in an overlapping manner to have the same image characteristics.
In another embodiment, while the bull's eye image segment model and the coronary artery graph are displayed in an overlapping manner, the target myocardial segment region focused by the user and the target coronary artery graph can be highlighted.
Specifically, in one example, a target myocardial segment region in the bull's eye image segment model is first determined; determining a target coronary artery graph which has a mapping relation with the target myocardial segment region in the plurality of coronary artery graphs; the target myocardial segment region is highlighted with the target coronary artery graph. The display mode may be referred to as a dynamic display mode, and by highlighting the mapping relationship between the target myocardial segment region and the target coronary artery graph, the time for the user to search for the coronary artery graph corresponding to the target myocardial segment region or the myocardial segment region corresponding to the target coronary artery graph can be reduced. The manner of highlighting includes, but is not limited to, highlighting, marking with a particular graphic or symbol, or displaying in a particular color, etc.
Wherein the target myocardial segment region may be user-selected. Specifically, an instruction for determining a target myocardial segment region is received, and the target myocardial segment region is determined according to the received instruction. The manner of receiving instructions for determining the target myocardial segment region may include receiving instructions through a user interface, based on a bullseye chart segment model, or by way of speech recognition, among others. When the user selects a specific target myocardial segment area in the Niu Yantu segment model, the coronary artery for prompting the blood supply of the corresponding myocardial segment of the user by associating and displaying the coronary artery graph can improve the diagnosis efficiency.
Or when the target myocardial segment region is determined, the processor of the ultrasonic imaging system can automatically identify the abnormal position based on the myocardial function parameters in the bull's eye image segment model, and the myocardial segment region corresponding to the abnormal position is determined as the target myocardial segment region.
In the dynamic display mode, in addition to displaying the corresponding coronary artery graph based on the target myocardial segment region in an associated manner, the target coronary artery graph may be determined first, and the corresponding myocardial segment region may be displayed in an associated manner. Specifically, a target coronary artery graph in the plurality of coronary artery graphs is determined, a target myocardial segment region having a mapping relation with the target myocardial segment graph is determined in the bull eye graph segment model according to the target coronary artery graph, and the target myocardial segment region and the target coronary artery graph are highlighted.
The target coronary artery graph can be selected by a user, an instruction for determining the target coronary artery graph can be received through a user interaction interface or voice recognition and the like, and the target coronary artery graph is determined according to the instruction for determining the target coronary artery graph. When the user selects the target coronary artery graph, the corresponding myocardial segment area is automatically associated and displayed, and the myocardial segment supplied with blood by the target coronary artery can be visually presented to the user.
In summary, the display method 200 of the myocardial functional parameters in the embodiment of the present application displays the bull's eye image segment model and the coronary artery image in an overlapping manner according to the blood supply relationship between the coronary artery and the myocardial segment, so that the blood supply relationship between the coronary artery and the myocardial segment can be embodied, and the diagnosis efficiency of the doctor can be improved.
In another aspect of the present embodiment, referring to fig. 4, a method 400 for displaying a myocardial function parameter includes the following steps:
in step S410, acquiring an ultrasound image of the heart of the target object;
in step S420, obtaining myocardial function parameters of a plurality of myocardial segments of the heart based on the ultrasound image;
generating a bull 'S-eye segment model based on the myocardial function parameters of the plurality of myocardial segments, wherein the bull' S-eye segment model comprises myocardial segment regions corresponding to the myocardial segments one by one, and the myocardial segment regions are used for representing the myocardial function parameters of the corresponding myocardial segments;
in step S440, a mapping relationship between the myocardial segment region and a preset coronary artery graph is obtained according to the blood supply relationship between the myocardial segment and the coronary artery,
in step S450, the Niu Yantu segment model and the coronary artery graph are displayed in different display areas simultaneously based on the mapping relationship, and at least one myocardial segment area in the bull' S eye graph segment model and an area corresponding to the same myocardial segment in the coronary artery graph are displayed in association based on the mapping relationship.
The difference between the display method 400 of myocardial function parameters in the embodiment of the present application and the display method 200 of myocardial function parameters is mainly that, in the display method 400 of myocardial function parameters, the coronary artery graph and the bull's eye graph segment model are not displayed in an overlapping manner, but are displayed in different areas of the same display interface, and at the same time, the coronary artery model having a mapping relationship is displayed in association with the myocardial segment area to represent the blood supply relationship between the coronary artery and the myocardial segment. The region of the coronary artery graph corresponding to the same myocardial segment, which is displayed in association with the myocardial segment region, is a region of the coronary artery graph corresponding to the coronary artery which supplies blood to the myocardial segment corresponding to the myocardial segment region. The regions corresponding to different coronary arteries in the coronary artery graph may be displayed in a fusion manner as shown in fig. 5, or may be displayed independently as shown in fig. 6, which is not limited by the embodiment of the present application.
In one embodiment, each myocardial segment region in the bull's eye image segment model may be displayed in association with a region in the coronary artery graph corresponding to the same myocardial segment, the associating display including displaying the myocardial segment region as having the same image features as the region in the coronary artery graph corresponding to the same myocardial segment. Referring to fig. 5, the left side of fig. 5 shows a coronary artery graph, which is fused with the heart model for displaying and is more vivid, and the coronary artery graph comprises a right coronary artery region, a circumflex region and an anterior descending region, which respectively correspond to the right coronary artery, the circumflex and the anterior descending. The right side of fig. 5 shows a bull's eye plot segment model, and the numbers shown in the bull's eye plot segment model are the myocardial function parameters of each myocardial segment. In practical applications, the right coronary artery region and the corresponding myocardial segment region (lower septal base segment region, lower wall base segment region, lower septal middle segment region, lower wall middle segment region, and lower wall apical segment region) may be displayed in the same color, the anterior descending branch region and the corresponding myocardial segment region (anterior wall base segment region, anterior septal base segment region, anterior wall middle segment region, anterior septal middle segment region, anterior wall apical segment region, septal apical segment region, and apical cap region) may be displayed in the same color, and the circumflex region and the corresponding myocardial segment region (lower side wall base segment region, anterior side wall base segment region, lower side wall middle segment region, middle side wall middle segment region, and side wall apical segment region) may be displayed in the same color to prompt the blood supply relationship between the coronary artery and the myocardial segment of the user. It should be noted that the blood supply relationship model is only used as an example, and specifically, the regions corresponding to different coronary arteries in the coronary artery graph and the corresponding myocardial segment region may be displayed in association according to the blood supply relationship model selected by the user or the blood supply relationship model preset by the system.
In another embodiment, only the target myocardial segment region focused by the user can be associated with the corresponding target coronary artery region in the coronary artery graph for displaying, so that the time for the user to find the coronary artery region corresponding to the target myocardial segment region or the myocardial segment region corresponding to the target coronary artery region is reduced. The mode of the associated display comprises displaying the target myocardial segment region and the target coronary artery region as the same image characteristics; the manner of associative display may also include highlighting the target myocardial segment region with the target coronary artery region. Highlighting may include highlighting the target myocardial segment region and the target coronary artery region; alternatively, highlighting may also include displaying the target myocardial segment region and the target coronary artery region in color, and displaying the other myocardial segment region and coronary artery region in gray; highlighting may also include marking out the target coronary artery region and the target coronary artery region with a graphic or symbol; the highlighting may also include any other display that embodies the target myocardial segment region and the target coronary artery region.
Specifically, one way to associate the target myocardial segment region with the target coronary artery region for display includes: firstly, determining a target myocardial segment area in a Niu Yantu segment model; determining a target coronary artery region having a mapping relation with the target myocardial segment region in the plurality of coronary artery graphs; and displaying the target myocardial segment region and the target coronary artery region in a correlated mode.
Wherein the target myocardial segment region may be user-selected. Specifically, an instruction for determining a target myocardial segment region is received, and the target myocardial segment region is determined according to the received instruction. The manner of receiving instructions for determining the target myocardial segment region may include receiving instructions through a user interface, based on a bullseye chart segment model, or by way of speech recognition, among others. When the user selects a specific target myocardial segment area in the Niu Yantu segment model, the coronary artery displaying the coronary artery area in an associated mode prompts the user to supply blood to the corresponding myocardial segment, and therefore diagnosis efficiency can be improved. Taking the speckle tracking strain analysis as an example, referring to fig. 6, if the user observes that the strain represented by the middle section region of the lower interval in the bull's eye image segment model is low, indicating that the motion of the corresponding myocardial segment is weakened, the user may select the middle section region of the lower interval, and the processor of the ultrasound imaging system determines the coronary artery region corresponding to the middle section region of the lower interval as the right coronary artery region according to the blood supply relationship between the myocardial segment and the coronary artery, so the right coronary artery region below fig. 6 is highlighted.
In some embodiments, when the target myocardial segment region is determined, the abnormal position may be automatically identified by the processor of the ultrasound imaging system based on the myocardial function parameters in the bull's eye image segment model, and the myocardial segment region corresponding to the abnormal position may be determined as the target myocardial segment region. In the example of fig. 6, the processor may also automatically recognize the abnormal position as a lower interval middle section according to the myocardial function parameters in the bull's eye image segment model, and then automatically determine the lower interval middle section region as the target myocardial segment region.
When the target myocardial segment region and the target coronary artery region are displayed in association with each other, the target coronary artery region may be determined first and the corresponding myocardial segment region may be displayed in association with each other, in addition to the display of the corresponding target coronary artery region based on the target myocardial segment region. Specifically, a target coronary artery region in a coronary artery graph is determined, a target myocardial segment region having a mapping relation with the target coronary artery region is determined in the bull eye graph segment model according to the target coronary artery region, and then the target myocardial segment region and the target coronary artery region are displayed in an associated mode.
The target coronary artery region can be selected by a user, an instruction for determining the target coronary artery region can be received through a user interactive interface or voice recognition and the like, and the target coronary artery region is determined according to the instruction for determining the target coronary artery region. When the user selects a target coronary artery region, the corresponding myocardial segment region is automatically displayed in an associated manner, and the myocardial segment supplied with blood from the target coronary artery can be visually presented to the user. Referring to fig. 7, if the user selects the right coronary artery region as the target coronary artery region, after receiving the user instruction, the myocardial segment region corresponding to the myocardial segment supplied with blood from the right coronary artery is highlighted and displayed in the bull's eye image segment model, and other myocardial segment regions may be presented in gray, that is, myocardial function parameters of other myocardial segment regions are not presented.
In summary, the display method 400 of the myocardial function parameters in the embodiment of the present application displays different myocardial segment regions in the bull's eye segment model and corresponding coronary artery regions in the coronary artery graph in association with each other according to the blood supply relationship between coronary arteries and myocardial segments, so that the blood supply relationship between coronary arteries and myocardial segments can be embodied, and the diagnosis efficiency of a doctor is improved.
The embodiment of the present application further provides an ultrasound imaging system, which is used for implementing the method 200 for displaying myocardial function parameters or the method 400 for displaying myocardial function parameters. The ultrasound imaging system includes an ultrasound probe, a transmit circuit, a receive circuit, a processor, and a display. Referring back to fig. 1, the ultrasound imaging system may be implemented as the ultrasound imaging system 100 shown in fig. 1, the ultrasound imaging system 100 may include an ultrasound probe 110, a transmitting circuit 112, a receiving circuit 114, a processor 116, and a display 118, optionally, the ultrasound imaging system 100 may further include a transmitting/receiving selection switch 120, a beam forming module 122, and a memory 124, the transmitting circuit 112 and the receiving circuit 114 may be connected to the ultrasound probe 110 through the transmitting/receiving selection switch 120, and the description of each component may refer to the above description, which is not repeated herein.
The transmitting circuit 112 is used for controlling the ultrasonic probe 110 to transmit ultrasonic waves to the target tissue; the receiving circuit 114 is used for controlling the ultrasonic probe 110 to receive the echo of the ultrasonic wave returned by the target tissue so as to obtain an ultrasonic echo signal; the processor 116 is configured to perform ultrasound imaging based on the ultrasound echo signals; the processor 116 is also configured to perform the above steps of the myocardial function parameter display method 200 or myocardial function parameter display method 400.
Only the main functions of the components of the ultrasound imaging system are described above, and for more details, reference is made to the related description of the display method 200 for myocardial function parameters and the display method 400 for myocardial function parameters, which are not described herein again. The ultrasonic imaging system of the embodiment of the application displays the bull's eye image segment model and the coronary artery image or the coronary artery image in a correlation mode, can embody the blood supply relation of the coronary artery to the myocardial segment, and improves the diagnosis efficiency of doctors.
Although the example embodiments have been described herein with reference to the accompanying drawings, it is to be understood that the above-described example embodiments are merely illustrative and are not intended to limit the scope of the present application thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the scope or spirit of the present application. All such changes and modifications are intended to be included within the scope of the present application as claimed in the appended claims.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the technical solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described device embodiments are merely illustrative, and for example, the division of the units is only one logical functional division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another device, or some features may be omitted, or not executed.
In the description provided herein, numerous specific details are set forth. However, it is understood that embodiments of the application may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Similarly, it should be appreciated that in the description of exemplary embodiments of the present application, various features of the present application are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the application and aiding in the understanding of one or more of the various inventive aspects. However, the method of the present application should not be construed to reflect the intent: this application is intended to cover such departures from the present disclosure as come within known or customary practice in the art to which this invention pertains. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this application.
It will be understood by those skilled in the art that all of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or elements of any method or apparatus so disclosed, may be combined in any combination, except combinations where such features are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.
Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the application and form different embodiments. For example, in the claims, any of the claimed embodiments may be used in any combination.
The various component embodiments of the present application may be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. Those skilled in the art will appreciate that a microprocessor or Digital Signal Processor (DSP) may be used in practice to implement some or all of the functionality of some of the modules according to embodiments of the present application. The present application may also be embodied as apparatus programs (e.g., computer programs and computer program products) for performing a portion or all of the methods described herein. Such programs implementing the present application may be stored on a computer readable medium or may be in the form of one or more signals. Such a signal may be downloaded from an internet website or provided on a carrier signal or in any other form.
It should be noted that the above-mentioned embodiments illustrate rather than limit the application, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The application may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.
The above description is only for the specific embodiments of the present application or the description thereof, and the protection scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope disclosed in the present application, and shall be covered by the protection scope of the present application. The protection scope of the present application shall be subject to the protection scope of the claims.
Claims (18)
1. A method for displaying myocardial function parameters, the method comprising:
acquiring an ultrasound image of a heart of a target object;
obtaining myocardial function parameters of a plurality of myocardial segments of the heart based on the ultrasound images;
generating a bull's-eye segment model based on the myocardial functional parameters of the plurality of myocardial segments, the bull's-eye segment model comprising myocardial segment regions in one-to-one correspondence with the myocardial segments, the myocardial segment regions being used for representing the myocardial functional parameters of the corresponding myocardial segments;
obtaining the mapping relation between the myocardial segment area and a preset coronary artery graph according to the blood supply relation between the myocardial segment and the coronary artery,
and displaying the bull's eye graph segment model and the preset coronary artery graph in an overlapping mode based on the mapping relation.
2. The method of claim 1, wherein the pre-defined coronary artery pattern comprises at least one of a right coronary artery pattern, a circumflex pattern, and an antegrade pattern.
3. The method according to claim 1, wherein the displaying the bull's eye graph segment model in superposition with the preset coronary artery graph based on the mapping comprises:
and displaying the coronary artery graph and the myocardial segment region with the mapping relationship in an overlapping mode to have the same image characteristics.
4. The method according to any one of claims 1-3, wherein the displaying the bull's eye plot segment model in superimposition with the preset coronary artery graph based on the mapping relationship comprises:
determining a target myocardial segment region in the bull's eye image segment model;
determining a target coronary artery graph which has a mapping relation with the target myocardial segment region in the preset coronary artery graph;
highlighting the target myocardial segment region with the target coronary artery graph.
5. The method of claim 4, wherein said determining a target myocardial segment region in said bull's eye segment model comprises:
receiving an instruction for determining a target myocardial segment region, and determining the target myocardial segment region according to the instruction.
6. The method of claim 4, wherein said determining a target myocardial segment region in said bull's eye segment model comprises:
identifying abnormal positions based on the myocardial function parameters in the bull's eye image segment model, and determining myocardial segment regions corresponding to the abnormal positions as the target myocardial segment regions.
7. The method according to any one of claims 1-3, wherein the displaying the bull's eye plot segment model in superimposition with the preset coronary artery graph based on the mapping relationship comprises:
determining a target coronary artery graph in the preset coronary artery graph;
in the bull eye image segment model, determining a target myocardial segment region having a mapping relation with the target coronary artery image;
highlighting the target myocardial segment region with the target coronary artery graph.
8. The method according to claim 7, wherein the determining a target coronary artery pattern among the preset coronary artery patterns comprises:
instructions for determining a target coronary artery pattern are received, the target coronary artery pattern being determined according to the instructions.
9. The method according to any one of claims 1-3, wherein the myocardial function parameter comprises a wall motion parameter of the myocardial segment or a perfusion parameter of the myocardial segment.
10. The method of claim 9, wherein the chamber wall motion parameters comprise at least one of: wall motion speed, displacement value, wall strain value, strain rate, rotation angle and wall motion score; the perfusion parameters include at least one of: perfusion intensity values, perfusion scores and time intensity curve fitting model parameters.
11. A method for displaying myocardial function parameters, the method comprising:
acquiring an ultrasound image of a heart of a target object;
obtaining myocardial function parameters of a plurality of myocardial segments of the heart based on the ultrasound image;
generating a bull's eye plot segment model based on the myocardial function parameters of the plurality of myocardial segments, the bull's eye plot segment model comprising myocardial segment regions in one-to-one correspondence with the myocardial segments, the myocardial segment regions being used to represent the myocardial function parameters of the corresponding myocardial segments;
obtaining the mapping relation between the myocardial segment area and a preset coronary artery graph according to the blood supply relation between the myocardial segment and the coronary artery,
simultaneously displaying the Niu Yantu segment model and the coronary artery graph in different display areas based on the mapping relationship,
and at least one myocardial segment region in the bull's eye image segment model is associated and displayed with a region corresponding to the same myocardial segment in the coronary artery graph based on the mapping relation.
12. The method according to claim 11, wherein the associating the at least one myocardial segment region in the bull's eye graph segment model with a region in the coronary artery graph corresponding to the same myocardial segment based on the mapping relationship comprises:
determining a target myocardial segment region in the bull's eye image segment model;
determining a target coronary artery region corresponding to the same myocardial segment as the target myocardial segment region in the preset coronary artery graph based on the mapping relation;
and displaying the target coronary artery graph and the target coronary artery region in a correlated mode.
13. The method of claim 12, wherein said determining a target myocardial segment region in said bull's eye segment model comprises:
receiving an instruction for determining a target myocardial segment region, and determining the target myocardial segment region according to the instruction.
14. The method of claim 12, wherein said determining a target myocardial segment region in said bull's eye segment model comprises:
identifying abnormal positions based on the myocardial function parameters in the bull's eye image segment model, and determining myocardial segment regions corresponding to the abnormal positions as the target myocardial segment regions.
15. The method according to claim 11, wherein the associating the at least one myocardial segment region in the bull's eye graph segment model with a region in the coronary artery graph corresponding to the same myocardial segment based on the mapping comprises:
determining a target coronary artery region in the preset coronary artery graph;
determining a target myocardial segment region having a mapping relation with the target coronary artery region in the bull eye image segment model based on the mapping relation;
displaying the target myocardial segment region in association with the target coronary artery region.
16. The method of claim 15, wherein said determining a target coronary artery region in said predetermined coronary artery pattern comprises:
instructions for determining a target coronary artery region are received, the target coronary artery region being determined according to the instructions.
17. The method according to any one of claims 11-16, wherein said displaying at least one myocardial segment region in the bull's eye map segment model in association with a region in the coronary artery graph corresponding to the same myocardial segment comprises:
displaying at least one myocardial segment region in the bull's eye map segment model as having the same image features as regions in the coronary artery graph corresponding to the same myocardial segment.
18. An ultrasound imaging system, comprising:
an ultrasonic probe;
the transmitting circuit is used for exciting the ultrasonic probe to transmit ultrasonic waves to target tissues;
the receiving circuit is used for controlling the ultrasonic probe to receive the echo of the ultrasonic wave so as to obtain an echo signal of the ultrasonic wave;
a processor for performing the steps of the method of displaying a myocardial function parameter of any one of claims 1 to 17.
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