System and method for optimizing endovascular interventional radiography and flushing based on image technology

Abstract

The invention provides a system and a method for optimizing endovascular interventional radiography and flushing based on an image technology. The system comprises a transfusion module, an image acquisition module and an intelligent control module, the infusion module is used for executing liquid injection operation in an interventional operation; the image acquisition module is used for acquiring and storing multi-real-phase blood vessel image data generated by each radiography operation; the intelligent control module is used for analyzing blood vessel image data and intelligently controlling and adjusting the liquid injection process; by fusing real-time image analysis and dynamic pressure regulation and control, individualized, intelligent and safe and efficient control of the radiography liquid injection process is achieved.

Description

Technical Field

[0001] This invention relates to the field of medical image processing and interventional medical systems, and in particular to an optimized intravascular interventional angiography and flushing system and method based on image technology. Background Technology

[0002] With the development of minimally invasive interventional techniques, endovascular surgery is becoming increasingly widespread in clinical applications, especially in high-precision interventional procedures such as neurovascular and cardiovascular surgeries, where the requirements for intraoperative image quality and catheter positioning are becoming increasingly stringent. Digital subtraction angiography (DSA), as the most important imaging method in interventional surgery, directly impacts the surgeon's assessment of lesions and the formulation of intraoperative strategies based on image clarity.

[0003] In interventional procedures, to ensure the cleanliness of the catheter access and controllable imaging contrast, it is usually necessary to alternately inject irrigation fluid and contrast agent. However, existing injection processes mostly rely on manual control, which has problems such as lag in injection pressure adjustment, low irrigation efficiency, or unstable image contrast. This not only increases the complexity of the operation but also potentially affects image recognition and surgical safety.

[0004] Furthermore, when comparing and analyzing preoperative and intraoperative vascular images of patients, a systematic method is lacking for effective registration of multi-temporal images, comparison of vascular changes, and support for decision-making. Therefore, there is an urgent need for a technical framework that integrates image data and fluid control to achieve automated regulation of the injection process, optimization of image quality, and precise support for intraoperative information.

[0005] A review of publicly available technical solutions reveals that CN114767996A proposes a neurointerventional high-pressure continuous perfusion system and method, comprising a first injection bottle, a second injection bottle, a third injection bottle, and a perfusion tank. The lower ends of the first, second, and third injection bottles are respectively fitted with a first outlet pipe, a second outlet pipe, and a third outlet pipe, with the outlet ends of each pipe connected to an inlet pipe. The inlet pipe is connected to the perfusion tank, and a stirring assembly is installed inside the perfusion tank. The outlet end of the perfusion tank is connected to the first perfusion pipe. One end of the first infusion tube is connected to the inlet of a booster pump, and the outlet of the booster pump is connected to one end of a second infusion tube. The other end of the second infusion tube is equipped with an infusion head. This invention has a novel structural design and is easy to operate. It can achieve continuous high-pressure infusion of the drug solution, with high infusion efficiency, which can improve the efficiency of interventional surgery. However, this solution only achieves high-pressure continuous supply of the infusion fluid and cannot achieve intelligent injection pressure adjustment during surgery. It does not have a dynamic pathway switching and coordination control mechanism between contrast agent and irrigation fluid, and it is difficult to meet the needs of fine management of image quality and infusion process during surgery. Summary of the Invention

[0006] The purpose of this invention is to address the shortcomings of current methods by proposing an optimized intravascular interventional angiography and irrigation system and method based on image technology.

[0007] The present invention adopts the following technical solution: An optimized intravascular interventional angiography and irrigation system based on image technology is disclosed. The system includes an infusion module, an image acquisition module, and an intelligent control module. The infusion module is used to perform infusion operations during interventional procedures. The image acquisition module is used to acquire and store multi-phase vascular image data generated during each angiography operation. The intelligent control module is used to combine vascular image data analysis and intelligently control and adjust the infusion process.

[0008] The infusion module includes a fluid infusion device and a pressure regulating device; the fluid infusion device is used to continuously or intermittently inject irrigation fluid and contrast agent during interventional surgery; the pressure regulating device is used to monitor and regulate the injection pressure of the irrigation fluid and contrast agent.

[0009] The fluid infusion device includes an irrigation fluid supply assembly, a contrast agent supply assembly, a catheter interface assembly, and a fluid path switching device. The irrigation fluid supply assembly is used to connect to a saline bag. The contrast agent supply assembly is used to connect to a contrast agent bottle. The catheter interface assembly is used to connect to the irrigation fluid supply assembly, the contrast agent supply assembly, and the interventional catheter. The fluid path switching device is located at the junction of the irrigation fluid supply assembly and the contrast agent supply assembly, and is used to selectively switch between the irrigation fluid path and the contrast agent path to achieve multiple alternating infusion operations during the procedure.

[0010] Furthermore, the fluid path switching device includes a solenoid valve and an electronic control device disposed at the fluid path node in the catheter interface assembly; the solenoid valve is used to control the opening and closing of the flushing fluid passage or the contrast agent passage; the electronic control device is used to receive control signals within the system and send drive commands to the solenoid valve to realize the dynamic switching of the injection path.

[0011] Furthermore, the pressure regulating device includes an irrigation fluid pressure pump, a contrast agent pressure pump, and a pressure sensor; the irrigation fluid pressure pump is located at the irrigation fluid supply assembly and is used to regulate the injection pressure of the irrigation fluid; the contrast agent pressure pump is located at the contrast agent supply assembly and is used to regulate the injection pressure of the contrast agent; the pressure sensor is connected to the output terminals of the irrigation fluid pressure pump and the contrast agent pressure pump respectively, and is used to monitor the injection pressure of the irrigation fluid and the contrast agent in real time.

[0012] Furthermore, the image acquisition module includes an intraoperative image acquisition unit, an image preprocessing unit, and an image synchronization marking unit; the intraoperative image acquisition unit is used to acquire vascular image data in real time during the interventional surgery; the image preprocessing unit is used to preprocess the vascular image data to improve image quality; and the image synchronization marking unit is used to perform timestamp marking processing on the vascular image data.

[0013] Furthermore, the intelligent control module includes an image analysis unit, a pressure control unit, and a channel switching control unit; the image analysis unit is used to process and analyze vascular image data to extract control reference values; the pressure control unit dynamically adjusts the injection pressure of the irrigation fluid and contrast agent based on the control reference values; the channel switching control unit is used to determine whether angiography is completed in conjunction with the control reference values ​​and control the switching between the irrigation fluid and contrast agent paths.

[0014] An optimized endovascular interventional angiography and irrigation method based on image technology, applied to an optimized endovascular interventional angiography and irrigation system based on image technology, the method includes the following steps: S1: Obtain the patient's preoperative vascular image data as a reference for angiography registration; S2: According to the surgical instructions, when the image acquisition device enters the angiography state, the irrigation fluid passage is closed, and the contrast agent injection and image acquisition process is started at the same time to acquire angiography image data in real time during the interventional surgery. S3: Real-time processing and analysis of vascular image data during interventional surgery to extract control reference values, and dynamic adjustment of contrast agent injection pressure based on control reference values; S4: Determine whether the angiography is complete based on the control reference value. When the angiography is completed, automatically close the contrast agent passage and open the flushing fluid passage to perform catheter flushing operation. S5: During the flushing process, the injection pressure of the flushing fluid is dynamically adjusted in conjunction with the control reference amount; S6: Execute subsequent operation instructions according to the surgical instructions. The contrast agent injection pressure during the angiography process is dynamically adjusted according to step S3, and the flushing fluid injection pressure during the irrigation process is dynamically adjusted according to step S5. After the completion of the entire interventional procedure, the patient's preoperative vascular image data is registered with the vascular image data during the interventional procedure, and the image comparison results are output for medical staff to refer to.

[0015] Furthermore, in step S3, during each time frame of acquiring the control reference value, the injection pressure of the contrast agent is dynamically adjusted in the following manner: ; in, Pressure is injected into the contrast agent at a certain time frame. The patient's blood viscosity is obtained through a routine blood test performed beforehand. The effective length of the catheter is specifically the length of the main flow path that the contrast agent travels from the catheter exit to the target lesion segment, which is determined by combining the pre-set surgical navigation path and vascular image data. The minimum radius of the target blood vessel is obtained through control reference values ​​obtained from real-time angiography image data analysis; The target flow rate is obtained through real-time angiography image data analysis of the control reference quantity; To ensure sufficient compensation, a pre-set experimental basis was established. The sensitivity coefficient for filling the gap is set through prior experiments; The control reference value for vascular filling is obtained through real-time angiography image data analysis; The sharpness compensation factor is set through prior experimentation; The normalized score for the clarity of blood vessel edges was obtained through control references obtained from real-time angiography image data analysis. The resolution threshold can be set by the user.

[0016] Furthermore, in step S5, after the flushing fluid passage is opened, the injection pressure of the flushing fluid is adjusted in the following manner: ; in, After the flushing fluid passage is opened and the timer is started, the time... The flushing fluid injection pressure; For time Intraoperative real-time monitoring of the patient's arterial blood pressure; The flushing pressure weight parameters are set through pre-experimentation; The system response time constant is determined in advance, taking into account the system hardware response delay. For time The control error term based on the residual contrast agent concentration satisfies: ; in, For time The corresponding residual concentration of contrast agent in the target vascular region is obtained through control reference values ​​obtained from real-time angiography image data analysis. The desired clear target concentration threshold is preset.

[0017] The beneficial effects achieved by this invention are: This invention, by constructing an optimized intravascular interventional angiography and irrigation system and method based on image technology, achieves image-driven dynamic control of the contrast agent and irrigation fluid injection process, and has the following beneficial effects: Personalized control: Based on individual differences such as preoperative images, intraoperative real-time images, and blood viscosity, the system constructs a multi-factor fusion injection pressure model, which can realize personalized adjustment of contrast agent injection pressure, improve imaging quality, and reduce risks. Intelligent angiography enhancement: A formula for calculating contrast agent injection pressure that integrates hemodynamic parameters and imaging features is proposed, which can effectively enhance the clarity of angiography and overcome the problems of image instability and low filling that exist in traditional static flow control. The flushing process balances safety and efficiency: Based on the patient's real-time arterial pressure and combined with feedback on the concentration of residual angiography, the flushing process achieves progressive adaptive pressure control, effectively removing residual contrast agent while reducing the risk of impact and vascular damage. Improved intraoperative efficiency: The system integrates automatic fluid circuit switching, image preprocessing and synchronous analysis, reducing manual intervention, improving intraoperative operation efficiency, and adapting to the rapid response needs in complex interventional scenarios. Attached Figure Description

[0018] The invention will be further understood from the following description taken in conjunction with the accompanying drawings. The components in the drawings are not necessarily drawn to scale, but rather the emphasis is on illustrating the principles of the embodiments. In different views, the same reference numerals designate corresponding parts.

[0019] Figure 1 This is a schematic diagram of the overall modules of the present invention.

[0020] Figure 2 This is a schematic diagram of the infusion module structure of the present invention.

[0021] Figure 3 This is a schematic diagram of the optimized intravascular interventional angiography and irrigation method based on image technology according to the present invention.

[0022] Figure 4 For the present invention in setting , , , Under the conditions, Over time A schematic diagram of the changing function. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to its embodiments. It should be understood that the specific embodiments described herein are only for explaining the present invention and are not intended to limit the present invention. Other systems, methods, and / or features of this embodiment will become apparent to those skilled in the art after reviewing the following detailed description. It is intended that all such additional systems, methods, features, and advantages are included within this specification, are included within the scope of the present invention, and are protected by the appended claims. Further features of the disclosed embodiments are described in the following detailed description, and these features will be apparent from the following detailed description.

[0024] In the accompanying drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components. In the description of the present invention, it should be understood that if terms such as "upper," "lower," "left," "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting the present patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0025] Example 1:

[0026] like Figure 1 , Figure 2 As shown, this embodiment provides an optimized intravascular interventional angiography and irrigation system based on image technology. The system includes an infusion module, an image acquisition module, and an intelligent control module. The infusion module is used to perform infusion operations during interventional procedures. The image acquisition module is used to acquire and store multi-real-phase vascular image data generated during each angiography operation. The intelligent control module is used to combine vascular image data analysis and intelligently control and adjust the infusion process. The infusion module includes a fluid infusion device and a pressure regulating device; the fluid infusion device is used to continuously or intermittently infuse irrigation fluid and contrast agent during interventional procedures; the pressure regulating device is used to monitor and regulate the injection pressure of the irrigation fluid and contrast agent. Furthermore, the fluid infusion device includes an irrigation fluid supply assembly, a contrast agent supply assembly, a catheter interface assembly, and a fluid path switching device; the irrigation fluid supply assembly is used to connect to a saline bag; the contrast agent supply assembly is used to connect to a contrast agent bottle; the catheter interface assembly is used to connect to the irrigation fluid supply assembly, the contrast agent supply assembly, and the interventional catheter; the fluid path switching device is located at the junction of the irrigation fluid supply assembly and the contrast agent supply assembly, and is used to selectively switch between the irrigation fluid path and the contrast agent path to achieve multiple alternating infusion operations during the procedure; Furthermore, the fluid path switching device includes a solenoid valve and an electronic control device disposed at the fluid path node in the catheter interface assembly; the solenoid valve is used to control the opening and closing of the flushing fluid passage or the contrast agent passage; the electronic control device is used to receive control signals within the system and send drive commands to the solenoid valve to realize the dynamic switching of the injection path. Furthermore, the pressure regulating device includes an irrigation fluid pressure pump, a contrast agent pressure pump, and a pressure sensor; the irrigation fluid pressure pump is located at the irrigation fluid supply assembly and is used to regulate the injection pressure of the irrigation fluid; the contrast agent pressure pump is located at the contrast agent supply assembly and is used to regulate the injection pressure of the contrast agent; the pressure sensor is connected to the output terminals of the irrigation fluid pressure pump and the contrast agent pressure pump respectively, and is used to monitor the injection pressure of the irrigation fluid and the contrast agent in real time. Furthermore, the image acquisition module includes an intraoperative image acquisition unit, an image preprocessing unit, and an image synchronization marking unit; the intraoperative image acquisition unit is used to acquire vascular image data in real time during the interventional procedure; the image preprocessing unit is used to preprocess the vascular image data to improve image quality; and the image synchronization marking unit is used to perform timestamp marking processing on the vascular image data. Furthermore, the intelligent control module includes an image analysis unit, a pressure control unit, and a channel switching control unit; the image analysis unit is used to process and analyze vascular image data to extract control reference values; the pressure control unit dynamically adjusts the injection pressure of the irrigation fluid and contrast agent based on the control reference values; the channel switching control unit is used to determine whether angiography is completed in conjunction with the control reference values ​​and control the switching between the irrigation fluid and contrast agent paths.

[0027] Example 2: This embodiment should be understood to include at least all the features of any of the foregoing embodiments, and to further improve upon them; like Figure 3 As shown, this embodiment provides an optimized intravascular interventional angiography and irrigation method based on image technology, the method including the following steps: S1: Obtain the patient's preoperative vascular image data as a reference for angiography registration; S2: According to the surgical instructions, when the image acquisition device enters the angiography state, the irrigation fluid passage is closed, and the contrast agent injection and image acquisition process is started at the same time to acquire angiography image data in real time during the interventional surgery. S3: Real-time processing and analysis of vascular image data during interventional surgery to extract control reference values, and dynamic adjustment of contrast agent injection pressure based on control reference values; S4: Determine whether the angiography is complete based on the control reference value. When the angiography is completed, automatically close the contrast agent passage and open the flushing fluid passage to perform catheter flushing operation. S5: During the flushing process, the injection pressure of the flushing fluid is dynamically adjusted in conjunction with the control reference amount; S6: Execute subsequent operation instructions according to the surgical instructions. The contrast agent injection pressure during the angiography process is dynamically adjusted according to step S3, and the irrigation fluid injection pressure during the irrigation process is dynamically adjusted according to step S5. After the entire interventional procedure is completed, the patient's preoperative vascular image data is registered with the intraoperative vascular image data, and the image comparison results are output for medical staff reference. Furthermore, in step S3, at each time frame of acquiring the control reference value, the contrast agent injection pressure is dynamically adjusted in the following way: ; in, Pressure is injected into the contrast agent at a certain time frame. The patient's blood viscosity is obtained through a routine blood test performed beforehand. The effective length of the catheter is specifically the length of the main flow path that the contrast agent travels from the catheter exit to the target lesion segment, which is determined by combining the pre-set surgical navigation path and vascular image data. The minimum radius of the target blood vessel is obtained through control reference values ​​obtained from real-time angiography image data analysis; The target flow rate is obtained through real-time angiography image data analysis of the control reference quantity; The filling compensation base is used to adjust the incremental compensation range of vascular filling with injection pressure. Its unit is pressure unit, which is set through pre-experimentation. The sensitivity coefficient for filling the gap is set through prior experiments; The control reference value for vascular filling is obtained through real-time angiography image data analysis; This is the sharpness compensation coefficient, used to adjust the compensation magnitude of image edge sharpness for injection pressure. Its unit is pressure unit, and it is set through pre-experimentation. The normalized score for the clarity of blood vessel edges was obtained through control references obtained from real-time angiography image data analysis. The resolution threshold can be set by the user. Furthermore, in this system, the contrast agent injection pressure is always maintained within the recommended parameters for contrast agent injection as determined by existing technical specifications to ensure the clinical safety and effectiveness of the injection process. This solution constructs a contrast agent injection pressure regulation model that integrates image analysis and hemodynamic parameters, unifying the three factors of fluid dynamic characteristics, vascular function status, and imaging diagnostic needs. It breaks through the limitations of traditional technology that relies solely on flow rate for pressure control, achieving precise response to individual differences and dynamic closed-loop regulation of image feedback during contrast agent infusion. This improves the image quality of contrast imaging, the safety of system operation, and the overall intraoperative efficiency, demonstrating significant advantages in intelligence and clinical application. Furthermore, such as Figure 4 As shown, in step S5, after the flushing fluid passage is opened, the injection pressure of the flushing fluid is adjusted in the following way: ; in, After the flushing fluid passage is opened and the timer is started, the time... The flushing fluid injection pressure; For time Intraoperative real-time monitoring of the patient's arterial blood pressure; This is the flushing pressure boosting weight parameter, used to adjust the degree of increase in flushing pressure based on the level of contrast agent residue. Its unit is pressure units, and it is set through pre-experimentation. The system response time constant is determined in advance, taking into account the system hardware response delay. For time The control error term based on the residual contrast agent concentration satisfies: ; in, For time The corresponding residual concentration of contrast agent in the target vascular region is obtained through control reference values ​​obtained from real-time angiography image data analysis. To preset the desired clear target concentration threshold; Furthermore, in step S3, the contrast agent injection pressure for each time frame is acquired. A corresponding pressure control signal is sent to the contrast agent pressure pump to achieve real-time dynamic adjustment of the contrast agent injection pressure, thereby matching the contrast agent supply intensity required by the current vascular image features; in step S5, the pressure of each time frame after the flushing process is started is acquired. By sending a corresponding pressure control signal to the flushing fluid pressure pump, the flushing fluid injection pressure can be dynamically adjusted automatically, thereby improving the efficiency of contrast agent residue removal while ensuring vascular safety. This approach achieves safe, efficient, and intelligent control of the irrigation process by constructing an irrigation fluid injection pressure adjustment model based on image residual concentration feedback; using real-time intraoperative arterial pressure... Based on this, avoid the risk of vascular damage or reflux caused by excessive flushing; through the contrast agent residual concentration error item Adaptive boost, combined with This method achieves progressive irrigation, improving the efficiency of residual removal while reducing the impact intensity; under the premise of ensuring vascular safety, it achieves efficient removal of contrast agents with the minimum amount of irrigation agent, reducing the risk of toxicity and improving intraoperative image quality; Specifically, in step S3, angiography image data for each time frame is acquired, and control reference values ​​for the corresponding time frames are automatically extracted; the extraction method for the control reference values ​​specifically includes: Effective length of catheter By using surgical navigation or a doctor's pre-planned path, combined with vascular image data, the centerline trajectory between the catheter exit point and the target lesion segment is identified, and the spatial length of this trajectory in the image is measured and calculated. Minimum radius of the target blood vessel The target blood vessel region is obtained by image segmentation of blood vessel image data, and the target blood vessel region is extracted using edge detection technology. Target traffic The propagation process of contrast agent in blood vessels is based on image sequences of vascular image data. The positional changes of the contrast agent front in images at different time frames are collected, the propagation speed per unit time is calculated by combining the image frame rate, and the target flow rate is estimated by combining the cross-sectional area of ​​the blood vessel. Vascular filling It is obtained by calculating the ratio between the average gray value of the target blood vessel region and the maximum gray value under conditions of full contrast agent filling; Normalized score of vascular edge clarity Edge intensity information is extracted by performing an edge detection algorithm on the target blood vessel region image, and the average value of the edge intensity gradient is calculated and normalized. Contrast agent residual concentration : Obtained by calculating the average gray value of the target blood vessel region; Specifically, in step S4, the expected thresholds for the normalized scores of vascular filling and vascular edge clarity in the control reference quantities are preset respectively. When both the normalized scores of vascular filling and vascular edge clarity are within their expected threshold ranges, the current angiography task can be determined to be completed, and the contrast agent pathway can be closed and the irrigation fluid pathway can be opened.

[0028] The content disclosed above is only a preferred and feasible embodiment of the present invention, and is not intended to limit the scope of protection of the present invention. Therefore, all equivalent technical changes made based on the content of the present invention specification and drawings are included within the scope of protection of the present invention. Furthermore, the elements therein can be updated as technology develops.

Claims

1. An optimized intravascular interventional angiography and irrigation system based on image technology, characterized in that, The system includes an infusion module, an image acquisition module, and an intelligent control module; the infusion module is used to perform infusion operations during interventional surgery; the image acquisition module is used to acquire and store multi-real-phase vascular image data generated during each angiography operation; the intelligent control module is used to combine vascular image data analysis and intelligently control and adjust the infusion process. The infusion module includes a fluid infusion device and a pressure regulating device; the fluid infusion device is used to continuously or intermittently infuse irrigation fluid and contrast agent during interventional procedures; the pressure regulating device is used to monitor and regulate the injection pressure of the irrigation fluid and contrast agent. The fluid infusion device includes an irrigation fluid supply assembly, a contrast agent supply assembly, a catheter interface assembly, and a fluid path switching device. The irrigation fluid supply assembly is used to connect to a saline bag. The contrast agent supply assembly is used to connect to a contrast agent bottle. The catheter interface assembly is used to connect to the irrigation fluid supply assembly, the contrast agent supply assembly, and the interventional catheter. The fluid path switching device is located at the junction of the irrigation fluid supply assembly and the contrast agent supply assembly, and is used to selectively switch between the irrigation fluid path and the contrast agent path to achieve multiple alternating infusion operations during the procedure.

2. The optimized intravascular interventional angiography and irrigation system based on image technology according to claim 1, characterized in that, The fluid path switching device includes a solenoid valve and an electronic control device installed at the fluid path node in the catheter interface assembly; the solenoid valve is used to control the opening and closing of the flushing fluid path or the contrast agent path; the electronic control device is used to receive control signals within the system and send drive commands to the solenoid valve to realize the dynamic switching of the injection path.

3. The optimized intravascular interventional angiography and irrigation system based on image technology according to claim 1, characterized in that, The pressure regulating device includes an irrigation fluid pressure pump, a contrast agent pressure pump, and a pressure sensor. The irrigation fluid pressure pump is located at the irrigation fluid supply assembly and is used to regulate the injection pressure of the irrigation fluid. The contrast agent pressure pump is located at the contrast agent supply assembly and is used to regulate the injection pressure of the contrast agent. The pressure sensor is connected to the output terminals of the irrigation fluid pressure pump and the contrast agent pressure pump, respectively, and is used to monitor the injection pressure of the irrigation fluid and the contrast agent in real time.

4. The optimized intravascular interventional angiography and irrigation system based on image technology according to claim 1, characterized in that, The image acquisition module includes an intraoperative image acquisition unit, an image preprocessing unit, and an image synchronization marking unit; the intraoperative image acquisition unit is used to acquire vascular image data in real time during the interventional procedure; the image preprocessing unit is used to preprocess the vascular image data to improve image quality; and the image synchronization marking unit is used to perform timestamp marking on the vascular image data.

5. The optimized intravascular interventional angiography and irrigation system based on image technology according to claim 1, characterized in that, The intelligent control module includes an image analysis unit, a pressure control unit, and a channel switching control unit. The image analysis unit is used to process and analyze vascular image data to extract control reference values. The pressure control unit dynamically adjusts the injection pressure of the irrigation fluid and contrast agent based on the control reference values. The channel switching control unit is used to determine whether angiography is completed by combining the control reference values ​​and to control the switching between the irrigation fluid and contrast agent paths.

6. An optimized intravascular interventional angiography and irrigation method based on image technology, applied to the optimized intravascular interventional angiography and irrigation system based on image technology as described in claim 1, characterized in that, The method includes the following steps: S1: Obtain the patient's preoperative vascular image data as a reference for angiography registration; S2: According to the surgical instructions, when the image acquisition device enters the angiography state, the irrigation fluid passage is closed, and the contrast agent injection and image acquisition process is started at the same time to acquire angiography image data in real time during the interventional surgery. S3: Real-time processing and analysis of vascular image data during interventional surgery to extract control reference values, and dynamic adjustment of contrast agent injection pressure based on control reference values; S4: Determine whether the angiography is complete based on the control reference value. When the angiography is completed, automatically close the contrast agent passage and open the flushing fluid passage to perform catheter flushing operation. S5: During the flushing process, the injection pressure of the flushing fluid is dynamically adjusted in conjunction with the control reference amount; S6: Execute subsequent operation instructions according to the surgical instructions. The contrast agent injection pressure during the angiography process is dynamically adjusted according to step S3, and the flushing fluid injection pressure during the flushing process is dynamically adjusted according to step S5. After the entire interventional procedure is completed, the patient's preoperative vascular image data is registered with the vascular image data during the interventional procedure, and the image comparison results are output for medical staff to refer to.

7. The optimized intravascular interventional angiography and irrigation method based on image technology according to claim 6, characterized in that, In step S3, at each time frame of acquiring the control reference value, the injection pressure of the contrast agent is dynamically adjusted in the following manner: ； in, Pressure is injected into the contrast agent at a certain time frame. The patient's blood viscosity is obtained through a routine blood test performed beforehand. The effective length of the catheter is specifically the length of the main flow path that the contrast agent travels from the catheter exit to the target lesion segment, which is determined by combining the pre-set surgical navigation path and vascular image data. The minimum radius of the target blood vessel is obtained through control reference values ​​obtained from real-time angiography image data analysis; The target flow rate is obtained through real-time angiography image data analysis of the control reference quantity; To ensure sufficient compensation, a pre-set experimental basis was established. The sensitivity coefficient for filling the gap is set through prior experiments; The control reference value for vascular filling is obtained through real-time angiography image data analysis; The sharpness compensation factor is set through prior experimentation; The normalized score for the clarity of blood vessel edges was obtained through control references obtained from real-time angiography image data analysis. The resolution threshold can be set by the user.

8. The optimized intravascular interventional angiography and irrigation method based on image technology according to claim 6, characterized in that, In step S5, after the flushing fluid passage is opened, the injection pressure of the flushing fluid is adjusted in the following manner: ； in, After the flushing fluid passage is opened and the timer is started, the time... The flushing fluid injection pressure; For time Intraoperative real-time monitoring of the patient's arterial blood pressure; The flushing pressure weight parameters are set through pre-experimentation; The system response time constant is determined in advance, taking into account the system hardware response delay. For time The control error term based on the residual contrast agent concentration satisfies: ； in, For time The corresponding residual concentration of contrast agent in the target vascular region is obtained through control reference values ​​obtained from real-time angiography image data analysis. The desired clear target concentration threshold is preset.

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