Image acquisition method, digital subtraction angiography system, equipment and storage medium

Abstract

The invention relates to an image acquisition method, a digital subtraction angiography system, digital subtraction angiography equipment and a storage medium, which are applied to the digital subtraction angiography system and are characterized in that the digital subtraction angiography system comprises a first host, a second host, a detector and an image display, and controlling the detector to perform data acquisition through the first host, and processing the data acquired by the detector through the first host. The method comprises the following steps: when a first host is in an abnormal working state, a second host controls a detector to collect data; the second host processes the data acquired by the detector to obtain image data; and the second host sends the image data to the image display to display the image. By adopting the method, the problem of unstable operation of a digital subtraction angiography system can be solved.

Description

Technical Field

[0001] The present application relates to the field of image acquisition, and in particular, to an image acquisition method, a digital subtraction angiography system, a device, and a storage medium. Background Art

[0002] During the operation of modern medical surgeries, operators require the digital subtraction angiography system to provide them with clear, highly real-time, and low-latency dynamic image displays, so as to assist operators in improving the accuracy of diagnosis. This poses high requirements for the computing power and operational stability of medical image acquisition systems. More and more high-performance computers have begun to be applied in digital subtraction angiography systems to achieve the acquisition, image processing, image display, and image storage of medical images.

[0003] However, the reliability of a computer is susceptible to the temperature, humidity, and vibration of its usage environment; and during the process of high-performance operation of the computer, components inside the computer itself and the computer operation are prone to failures. This results in abnormal functions such as image acquisition, processing, and display during the operation of the digital subtraction angiography system due to abnormal operation of the host, and further leads to accidents such as abnormal interruption of surgeries. Therefore, there are problems with poor stability of the digital subtraction angiography system and inability to meet the high reliability requirements in medical application scenarios.

[0004] Regarding the problem of unstable operation of the digital subtraction angiography system existing in the related art, no effective solution has been proposed yet. Summary of the Invention

[0005] In the present embodiment, an image acquisition method, a digital subtraction angiography system, a device, and a storage medium are provided to solve the problem of surgical accidents caused by unstable operation of the host of the digital subtraction angiography system in the related art.

[0006] In a first aspect, in the present embodiment, an image acquisition method is provided, which is applied to a digital subtraction angiography system. The digital subtraction angiography system includes a first host, a second host, a detector, and an image display. Among them, when the first host is in a normal working state, the detector is controlled by the first host to perform data acquisition, the data acquired by the detector is processed by the first host to obtain first image data, and the first image data is sent to the image display by the second host; the method includes:

[0007] When the first host is in an abnormal working state, the second host controls the detector to perform data acquisition;

[0008] The second host processes the data acquired by the detector to obtain second image data;

[0009] The second host sends the second image data to the image display to display an image.

[0010] In some embodiments thereof, the second host controls the detector to perform data acquisition, including:

[0011] The second host controls the detector to perform data acquisition in response to a user instruction.

[0012] In some embodiments thereof, before the second host controls the detector to perform data acquisition, the method further includes:

[0013] The second host establishes a communication connection with the detector;

[0014] The second host establishes a communication connection with the image display.

[0015] In some embodiments thereof, the method further includes:

[0016] Obtain the operating parameters of the first host;

[0017] Judge whether the first host is in an abnormal working state according to the operating parameters.

[0018] In some embodiments thereof, the method further includes:

[0019] When the first host recovers from the abnormal working state to the normal working state, the first host processes the data collected by the detector to obtain third image data;

[0020] The first host sends the third image data to the image display to display an image.

[0021] In a second aspect, in the present embodiment, a digital subtraction angiography system is provided. The digital subtraction angiography system includes a first host, a second host, a detector and an image display. When the first host is in a normal working state, the detector is controlled by the first host to perform data acquisition, the data collected by the detector is processed by the first host to obtain first image data, and the first image data is sent to the image display by the second host; the digital subtraction angiography system is used to implement the image acquisition method described in the first aspect.

[0022] In some embodiments thereof, the digital subtraction angiography system further includes a video switching module. One end of the video switching module is respectively connected to the first host and the second host, and the other end of the video switching module is connected to the image display; wherein,

[0023] The video switching module is configured to send the first image data obtained by the first host processing the data collected by the detector, or send the second image data obtained by the second host processing the data collected by the detector to the image display.

[0024] In some embodiments, the digital subtraction angiography system further includes a system control module, and the system control module is respectively connected to the first host and the second host; wherein,

[0025] The system control module is configured to monitor the working state of the first host and generate a control instruction according to the working state of the first host to control the operation of the second host.

[0026] In a third aspect, a computer device is provided in this embodiment, including a memory and a processor. The memory stores a computer program, and when the processor executes the computer program, the image acquisition method described in the first aspect is implemented.

[0027] In a fourth aspect, a computer-readable storage medium is provided in this embodiment, on which a computer program is stored. When the computer program is executed by a processor, the image acquisition method described in the first aspect is implemented.

[0028] Compared with the related art, in the image acquisition method provided in this embodiment, when the first host is in an abnormal working state, the detector is controlled by the second host for detection, and the image display receives the image data output by the second host to display the digital subtraction angiography image, so as to ensure that the abnormality of the first host does not affect the normal operation of the digital subtraction angiography system and improve the stability of the operation of the digital subtraction angiography system.

[0029] Details of one or more embodiments of the present application are set forth in the following drawings and description, so that other features, objects, and advantages of the present application will become more clearly understood. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The drawings described herein are used to provide a further understanding of the present application, and constitute a part of the present application. The illustrative embodiments and descriptions thereof of the present application are used to explain the present application and do not constitute an improper limitation of the present application. In the drawings:

[0031] Figure 1 is a hardware structure block diagram of a terminal of the image acquisition method in an embodiment;

[0032] Figure 2 is a structure block diagram of a digital subtraction angiography system in an embodiment;

[0033] Figure 3 is a flow schematic diagram of the image acquisition method in an embodiment;

[0034] Figure 4 is a structural block diagram of a digital subtraction angiography system in another embodiment;

[0035] Figure 5 is a schematic flowchart of an image acquisition method in another embodiment;

[0036] Figure 6 is an internal structure diagram of a computer device in an embodiment. Detailed implementation manners

[0037] In order to make the objectives, technical solutions and advantages of the present application clearer and more understandable, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0038] In the image acquisition method embodiment provided in this embodiment, it can be executed in a terminal, a computer or a similar computing device. For example, it runs on a terminal. Figure 1 is a hardware structure block diagram of a terminal of an image acquisition method according to an embodiment of the present application. As Figure 1 shown, the terminal may include one or more ( Figure 1 only one is shown in Figure 1 fig.) processors 102 and a memory 104 for storing data. Among them, the processor 102 may include, but is not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA. The above terminal may also include a transmission device 106 for communication functions and an input / output device 108. Those of ordinary skill in the art can understand that Figure 1 the structure shown in Figure 1 is only schematic and does not limit the structure of the above terminal. For example, the terminal may further include more or fewer components than those shown in

[0039] fig., or have a different configuration from that shown in

[0040] The transmission device 106 is used to receive or send data via a network. The above-mentioned network includes a wireless network provided by the communication provider of the terminal. In one instance, the transmission device 106 includes a network adapter (Network Interface Controller, abbreviated as NIC), which can be connected to other network devices through a base station so as to communicate with the Internet. In one instance, the transmission device 106 can be a Radio Frequency (RF) module, which is used to communicate with the Internet wirelessly.

[0041] In one of the embodiments, Figure 2 a structural block diagram of a digital subtraction angiography system is provided. As Figure 2 shown, the digital subtraction angiography system includes a first host, a second host, a detector, and an image display. When the first host is in a normal working state, the detector is controlled by the first host to collect data, the data collected by the detector is processed by the first host to obtain first image data, and the first image data is sent to the image display by the second host. When the first host is in an abnormal working state, the detector is controlled by the second host to collect data; and the data collected by the detector is processed by the second host to obtain second image data, and the second host sends the second image data to the image display to display the image.

[0042] Combined with Figure 2 , in the digital subtraction angiography system, the first host and the second host can execute the image acquisition method based on Figure 1 the terminal in, or a computer, a similar computing device. It can be understood that this method can also be applied to a server, and can also be applied to a system including a terminal and a server, and is implemented through the interaction between the terminal and the server.

[0043] Correspondingly, this embodiment also provides an image acquisition method, which is applied to a digital subtraction angiography system. Figure 3 A schematic flowchart of the image acquisition method is provided. As Figure 3 shown, it includes the following steps:

[0044] Step 301, when the first host is in an abnormal working state, the second host controls the detector to collect data.

[0045] When the first host is in an abnormal operating state, it cannot normally control the detector to collect data. For example, when the first host is in an abnormal operating state, it cannot control the detector to collect data based on requirements. The requirements can be instructions pre-written in the first host or instructions input by the user on the user interface of the first host. The abnormal operating state can be a state where the first host crashes and cannot generate instructions for controlling the detector, or a state where the first host can generate instructions for controlling the detector, but the generated instructions do not meet the user's requirements.

[0046] Optionally, the second host can establish a communication connection with the detector after the first host is in an abnormal state and control the detector to collect data; or the second host can establish a communication connection with the detector before the first host is in an abnormal state, and when the first host is in an abnormal operating state, control the detector to collect data.

[0047] Step 302, the second host processes the data collected by the detector to obtain second image data.

[0048] Among them, the detector is used to receive rays, and the rays can be x-rays, γ-rays, or other high-energy rays. Correspondingly, the detector can be an x-ray detector or a γ-ray detector, etc. The data collected by the detector is the electrical signal generated after the detector receives the ray signal, and the data collected by the detector is used to indicate the density, structure, and other attributes of the detected object. Optionally, the second host processes the data collected by the detector to obtain tomographic second image data of the detected object.

[0049] Step 303, the second host sends the second image data to the image display to display the image.

[0050] The image display obtains and displays the second image data output by the second host in real time, so that when the first host is in an abnormal operating state, the user can also obtain the real-time dynamic image of the detected object.

[0051] Among them, the second host can establish a communication connection with the image display after the first host is in an abnormal state; or the second host can establish a communication connection with the image display before the first host is in an abnormal state, and after the first host is abnormal, send the second image data to the image display.

[0052] In this embodiment, when the first host is in a normal operating state, the first host controls the detector to perform data acquisition. It can be seen that when the first host is in a normal operating state, there is a communication connection between the first host and the detector, and the detector responds to the instructions output by the first host to achieve detection. When the first host is in an abnormal operating state, regardless of whether the first host maintains a communication connection with the detector and whether the first host sends instructions to the detector, the detector is controlled by the second host to perform detection, and the image display receives the second image data output by the second host. Thus, when the first host is abnormal, the operation of the digital subtraction angiography system is not affected, and the digital subtraction angiography system can still detect and display images in real time based on the second host, improving the stability of the operation of the digital subtraction angiography system.

[0053] In some of these embodiments, the second host controls the detector to perform data acquisition, including: the second host responds to a user instruction and controls the detector to perform data acquisition. Among them, the user instruction is used to indicate the detection requirements of the detector. For example, when the first host is in an abnormal operating state, it is required that the digital subtraction angiography system continue to provide vascular images for the user. The second host receives the user instruction for detection and generates a control instruction for controlling the operation of the detector according to the user instruction. In this embodiment, the second host controls the detector to work in response to the user instruction, so that the detection of the detector can meet the user's needs.

[0054] In some of these embodiments, before the second host controls the detector to perform data acquisition, the method further includes: the second host establishes a communication connection with the detector; the second host establishes a communication connection with the image display. Among them, the communication connection between the second host and the detector enables data transmission between the second host and the detector. For example, the second host sends a control instruction to the detector to control the operation of the detector; or, for another example, the detector sends the acquired data to the second host, so that the second host can process the data acquired by the detector and obtain the second image data. The communication connection between the second host and the image display enables data transmission between the second host and the image display. For example, the second host sends the second image data to the image display.

[0055] Optionally, when the first host is in an abnormal operating state, the second host is in communication connection with the detector, and the first host is not in communication connection with the detector, so that the detection of the detector is not controlled by the first host. Or, when the first host is in an abnormal operating state, the detector is simultaneously in communication connection with the first host and the second host, but the detector only responds to the control instruction output by the second host to achieve detection.

[0056] When the first host is in a normal operating state, the second host can be in an idle state or a working state. For example, when the first host is in a normal operating state, the second host processes services unrelated to current image detection and second image data processing. When the first host is in an abnormal operating state, to avoid loss of working data processed by the second host or data stored in the second host, in some of these embodiments, before the second host controls the detector to collect data, the method further includes: backing up the data in the second host. Optionally, the data in the second host is transmitted to a storage space such as a cloud server or a removable storage device to implement backup of the data in the second host. In this embodiment, by backing up the data of the second host, loss of the working data and stored data of the second host is avoided.

[0057] In some of these embodiments, the method further includes: obtaining the operating parameters of the first host; determining whether the first host is in an abnormal operating state according to the operating parameters. Wherein, the operating parameters are used to indicate the operating state of the first host. Optionally, the operating parameters include: communication parameters of the first host, hardware operating parameters, or image acquisition parameters. Wherein, the communication parameters are used to indicate whether the first host can communicate normally with the detector and the image display; the hardware operating parameters are used to indicate whether the internal hardware of the first host is operating normally; the image acquisition parameters are used to indicate whether the control instructions used by the first host to control the detector work meet the user's requirements.

[0058] Exemplarily, if the operating parameters are within a specified range, it can be determined that the first host is in a normal operating state; if the operating parameters exceed the specified range, it can be determined that the first host is in an abnormal operating state. It is also possible to judge the operating parameters based on other methods. For example, according to the change situation of the operating parameters, judge whether the first host is in an abnormal operating state, etc. In this embodiment, by monitoring the operating state of the first host through the operating parameters and obtaining the working state of the second host in real time, when the first host is abnormal, the second host can timely replace the first host to control the detector digit and process the data collected by the detector, improving the working stability of the digital subtraction angiography system.

[0059] In some of these embodiments, when the first host recovers from an abnormal operating state to a normal operating state, the first host processes the data collected by the detector to obtain third image data; the first host sends the third image data to the image display to display the image. Optionally, after the first host enters an abnormal operating state, continue to obtain the operating parameters of the first host and determine whether the first host has recovered to a normal operating state according to the operating parameters. Wherein, before the first host processes the data collected by the detector, the first host can also control the detector to collect data in response to a user instruction.

[0060] In one embodiment, based on the digital subtraction angiography system shown in Figure 2 , the digital subtraction angiography system further includes a video switching module. One end of the video switching module is respectively connected to the first host and the second host, and the other end of the video switching module is connected to an image display; wherein, the video switching module is configured to send the first image data obtained by the first host processing the data collected by the detector, or send the second image data obtained by the second host processing the data collected by the detector to the image display. When the first host is in a normal operating state, the video switching module sends the first image data to the image display, and when the first host is in an abnormal operating state, the video switching module sends the second image data to the image display.

[0061] The digital subtraction angiography system further includes a system control module, and the system control module is respectively connected to the first host and the second host; wherein, the system control module is configured to monitor the operating state of the first host and generate a control instruction according to the operating state of the first host to control the operation of the second host.

[0062] Optionally, when the system control module monitors that the first host is in an abnormal operating state, the control instruction notifies the second host to control the detector to perform data collection, processes the collected data to obtain the second image data, and sends the second image data to the image display. The system control module can also output an instruction to control the first host to stop operating when it monitors that the first host is in an abnormal operating state. When the digital subtraction angiography system further includes a video switching module, the system control module can also synchronously notify the video switching module to send the image data processed by the second host to the image display and stop sending the image data processed by the first host to the image display.

[0063] Each module in the above digital subtraction angiography system can be implemented in whole or in part by software, hardware, and their combination. The above modules can be embedded in the processor of the computer device in hardware form or independent of it, or stored in the memory of the computer device in software form, so that the processor can call and execute the operations corresponding to the above respective modules.

[0064] In the traditional technology, DSA (Digital Subtraction Angiography) systems are divided into two categories: In one type of DSA system, after any host related to acquisition fails, the acquisition function of the DSA system fails, and the ongoing operation must be terminated immediately, and the DSA system runs unstably. In another DSA system, an emergency acquisition function is provided, but this function is centrally deployed on a fixed computer. After the host on which this function is deployed fails, the emergency acquisition function also fails, and there is still a problem of unstable operation of the DSA system.

[0065] In one embodiment based on the same inventive concept to address the above problems, a digital subtraction angiography system includes a first host and multiple second hosts. 、 An X-ray detector and an image display. Among them, the first host is deployed with an image acquisition module and a preprocessing module. The image acquisition module is used to control the detection of the detector in response to a user instruction; the preprocessing module is used to process the data collected by the detector to obtain image data. Each second host is deployed with an emergency acquisition module and a module for implementing other functions.

[0066] Optionally, one second host is deployed with an emergency acquisition module and a patient management module, and another second host is deployed with an emergency acquisition module and an image processing module. Among them, the emergency acquisition module is used to control the detection of the detector in response to an acquisition instruction input by the user, process the data collected by the detector to obtain image data, and send the image data to the image display; the patient management module is used to manage information such as the basic information and health status of the patient; the image processing module is used to perform post-processing on the image displayed on the image display to improve the imaging quality. In this embodiment, the digital subtraction angiography system includes two second hosts for illustration. It should be understood that based on the same concept, the digital subtraction angiography system may also include more than two second hosts, and the modules for implementing other functions in the second host are not limited to the emergency acquisition module and the patient management module.

[0067] Taking the digital subtraction angiography system including a first host and a second host, where the first host is deployed with an image acquisition module and a preprocessing module, and the second host is deployed with an emergency acquisition module, a patient management module, and an image processing module as an example, Figure 4 Another structural block diagram of the digital subtraction angiography system is provided. As Figure 4 shown, the system control module is respectively connected to the first switch and the video switching module. The first switch is respectively connected to the first host and the second host. The second switch is respectively connected to the first host, the second host, and the X-ray detector. The video switching module is respectively connected to the first host, the second host, and the image display.

[0068] Among them, the first host is used to implement image acquisition and preprocessing of detection data. The second host is used to implement patient management and image processing when the first host is in a normal working state; and to implement image acquisition and preprocessing of detection data when the first host is in an abnormal working state.

[0069] The second switch is used to implement data transmission between the first host and the X-ray detector, and data transmission between the first host and the X-ray detector. The image display is used to receive the image data output by the first host and the second host in real time to display the video.

[0070] The system control module is used to generate user instructions in response to user operations and output the user instructions to the first switch. The first switch is used to send the user instructions output by the system control module to the first host or the second host. Among them, when the first host is in a normal working state, the first switch sends the user instructions to the first host; when the first host is in an abnormal working state, the first switch sends the user instructions to the second host.

[0071] The system control module is also used to generate control instructions according to the working state of the first host and output the control instructions to the video switching module. The video switching module is used to switch the host communicatively connected to the image display. Specifically, when the first host is in an abnormal working state, the system control module generates control instructions to make the video switching module disconnect the communication connection between the image display and the first host and establish a communication connection between the image display and the second host.

[0072] The first host, the second host, the detector, and the image display in the above digital subtraction angiography system can all or partially be implemented by software, hardware, and their combination.

[0073] Combined Figure 4 with the digital subtraction angiography system in

[0074] Step 501, the system control module monitors the states of the first host and the second host in real time. After the first host fails, it notifies the second host to start the emergency acquisition module. Among them, when the first host is in a normal working state, the second host runs the patient management module and the image processing module.

[0075] Step 502, if the emergency acquisition module is successfully started, a communication connection is established between the second host and the X-ray detector. The communication connection between the second host and the X-ray detector is used to transmit the instruction control generated by the second host to the X-ray detector and transmit the data collected by the X-ray detector to the second host.

[0076] Step 503, the system control module controls the video switching module to switch the host communicatively connected to the image display from the first host to the second host. Through the switching of the video switching module, the image display can receive the image data output by the second host in real time and obtain a video based on the real-time image data.

[0077] Step 504, the emergency acquisition module in the second host responds to the acquisition instruction input by the user and completes image acquisition and display.

[0078] Optionally, when the first host resumes from an abnormal operating state to a normal operating state, the first host resumes the communication connection with the X-ray detector. The video switching module switches the host communicatively connected to the image display from the second host to the first host, and starts the image acquisition module and the preprocessing module. The emergency acquisition module in the second host stops running, and the patient management module and the image processing module are started.

[0079] In this embodiment, the emergency acquisition module with image acquisition function is distributedly deployed among multiple hosts in the DSA system. When the first host is abnormal, any normal operating second host with image acquisition function replaces the first host to continue image acquisition and display. Therefore, during the operation based on the DSA system, the operation will not terminate due to the failure of the acquisition function of the first host of the DSA system, improving the operating stability of the DSA system and avoiding the adverse effects brought by abnormal interruption of the operation.

[0080] Moreover, the implementation of this embodiment does not require adding new hardware devices on the basis of the original DSA system, and the image acquisition method of this embodiment can be realized based on the existing general-purpose computers in the DSA system.

[0081] It should be understood that although the steps in the flowcharts involved in the above-described embodiments are shown in sequence according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless there is a clear indication in this article, the execution of these steps has no strict order limitation, and these steps can be executed in other orders. Moreover, at least some of the steps in the flowcharts involved in the above-described embodiments may include multiple steps or multiple stages. These steps or stages are not necessarily executed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be executed alternately or alternately with at least a part of other steps or steps or stages in other steps, for example, steps 402 and 403 can be executed at the same time.

[0082] In one embodiment, a computer device is provided. The computer device can be a terminal, and its internal structure diagram can be as Figure 6As shown. The computer device includes a processor, a memory, an input / output interface, a communication interface, a display unit, and an input device. Among them, the processor, the memory, and the input / output interface are connected through a system bus, and the communication interface is connected to the system bus through the input / output interface. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and computer programs. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage medium. The input / output interface of the computer device is used to exchange information between the processor and external devices. The communication interface of the computer device is used to communicate with external terminals in a wired or wireless manner, and the wireless manner can be implemented through WIFI, a mobile cellular network, NFC (Near Field Communication), or other technologies. The computer program, when executed by the processor, implements an image processing method.

[0083] Those skilled in the art can understand that Figure 5 the structure shown in is only a block diagram of some structures related to the solution of this application, and does not constitute a limitation on the computer device to which the solution of this application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0084] In one embodiment, a computer device is provided, including a memory and a processor. A computer program is stored in the memory. When the processor executes the computer program, the following steps are implemented: When the first host is in a normal working state, control the detector to collect data through the first host, and process the data collected by the detector through the first host to obtain first image data, and send the first image data to the image display through the second host; The digital subtraction angiography system is used to implement the image acquisition method of the first aspect. Optionally, the second host controls the detector to collect data in response to a user instruction.

[0085] In one embodiment, when the processor executes the computer program, the following steps are also implemented: Before the second host controls the detector to collect data, the second host establishes a communication connection with the detector; The second host establishes a communication connection with the image display.

[0086] In one embodiment, when the processor executes the computer program, the following steps are further implemented: obtaining the operating parameters of the first host; determining whether the first host is in an abnormal operating state according to the operating parameters. Optionally, when the processor executes the computer program, the following steps are further implemented: when the first host recovers from the abnormal operating state to the normal operating state, processing the data collected by the detector through the first host to obtain third image data; sending the third image data to the image display through the first host to display an image.

[0087] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the following steps are implemented: when the first host is in a normal operating state, controlling the detector to collect data through the first host, processing the data collected by the detector through the first host to obtain first image data, and sending the first image data to the image display through the second host; the digital subtraction angiography system is used to implement the image acquisition method of the first aspect. Optionally, when the computer program is executed by the processor, the following steps are further implemented: the second host controls the detector to collect data in response to a user instruction.

[0088] In one embodiment, when the computer program is executed by the processor, the following steps are further implemented: before the second host controls the detector to collect data, the second host establishes a communication connection with the detector; the second host establishes a communication connection with the image display.

[0089] In one embodiment, when the computer program is executed by the processor, the following steps are further implemented: obtaining the operating parameters of the first host; determining whether the first host is in an abnormal operating state according to the operating parameters.

[0090] Optionally, when the computer program is executed by the processor, the following steps are further implemented: when the first host recovers from the abnormal operating state to the normal operating state, processing the data collected by the detector through the first host to obtain third image data; sending the third image data to the image display through the first host to display an image.

[0091] Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be completed by instructing relevant hardware through a computer program. The computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above methods. Among them, any reference to a memory, database, or other medium used in the embodiments provided in the present application can include at least one of non-volatile and volatile memories. Non-volatile memories can include read-only memory (ROM), magnetic tapes, floppy disks, flash memories, optical memories, high-density embedded non-volatile memories, resistive random access memories (ReRAM), magnetoresistive random access memories (MRAM), ferroelectric random access memories (FRAM), phase change memories (PCM), graphene memories, etc. Volatile memories can include random access memory (RAM) or external cache memories, etc. By way of illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM), etc. The databases involved in the embodiments provided in the present application can include at least one of relational databases and non-relational databases. Non-relational databases can include distributed databases based on blockchain, etc., without limitation. The processors involved in the embodiments provided in the present application can be general-purpose processors, central processors, graphics processors, digital signal processors, programmable logic devices, data processing logics based on quantum computing, etc., without limitation.

[0092] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0093] The above-described embodiments merely represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the patent scope of the present application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. An image acquisition method, applied to a digital subtraction angiography system, characterized in that, The digital subtraction angiography system includes a first host, a second host, a detector, and an image display. Among them, when the first host is in a normal operating state, the detector is controlled by the first host to perform data acquisition, the data acquired by the detector is processed by the first host to obtain first image data, and the first image data is sent to the image display by the second host; The method includes: When the first host is in an abnormal operating state, the second host controls the detector to perform data acquisition; The second host processes the data acquired by the detector to obtain second image data; The second host sends the second image data to the image display to display the image.

2. The image acquisition method according to claim 1, characterized in that, The second host controlling the detector to perform data acquisition includes: The second host controls the detector to perform data acquisition in response to a user instruction.

3. The image acquisition method according to claim 1, characterized in that, Before the second host controls the detector to perform data acquisition, the method further includes: The second host establishes a communication connection with the detector; The second host establishes a communication connection with the image display.

4. The image acquisition method according to claim 1, characterized in that, The method further includes: Obtaining the operating parameters of the first host; Judging whether the first host is in an abnormal operating state according to the operating parameters.

5. The image acquisition method according to claim 1, characterized in that, The method further includes: When the first host recovers from the abnormal operating state to the normal operating state, the data acquired by the detector is processed by the first host to obtain third image data; The third image data is sent to the image display by the first host to display the image.

6. A digital subtraction angiography system, the digital subtraction angiography system includes a first host, a second host, a detector and an image display. When the first host is in a normal working state, the detector is controlled by the first host to perform data acquisition, and the data collected by the detector is processed by the first host to obtain first image data, and the first image data is sent to the image display by the second host; the digital subtraction angiography system is used to implement the method described in any one of claims 1 to 5.

7. The digital subtraction angiography system according to claim 6, characterized in that, The digital subtraction angiography system further includes a video switching module. One end of the video switching module is respectively connected to the first host and the second host, and the other end of the video switching module is connected to the image display; Among them, The video switching module is used to send the first image data obtained by the first host processing the data acquired by the detector, or send the second image data obtained by the second host processing the data acquired by the detector to the image display.

8. The digital subtraction angiography system according to claim 6, characterized in that, The digital subtraction angiography system further includes a system control module. The system control module is respectively connected to the first host and the second host; Among them, The system control module is used to monitor the working state of the first host and generate a control instruction according to the working state of the first host to control the operation of the second host.

9. A computer device, including a memory and a processor, the memory stores a computer program, characterized in that, When the processor executes the computer program, the steps of the method according to any one of claims 1 to 7 are implemented.

10. A computer-readable storage medium, on which a computer program is stored, characterized in that, When the computer program is executed by the processor, the steps of the method according to any one of claims 1 to 7 are implemented.

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