Contrast agent injection blood vessel pressure monitoring method, system and device and medium

Abstract

The invention discloses a contrast agent injection blood vessel pressure monitoring method, system and device and a medium. The method comprises the steps that initial information and physiological indexes of a patient are obtained; performing state evaluation on the patient according to the initial information and the physiological indexes to obtain a state evaluation result; determining injection parameters according to the physiological indexes, the state evaluation result, the injection requirements and the attributes of the injection medicine; pressure information in the injection process is obtained through a pressure sensor, and injection parameters are adjusted and early warned according to the pressure information; and performing imaging quality comprehensive evaluation on the medical image to obtain a quality evaluation result. The optimal injection parameters are determined according to the patient data, meanwhile, real-time feedback adjustment and early warning are conducted on the injection process, the imaging effect is comprehensively evaluated, the adjustment process is fed back and optimized, the injection process is optimized while it is guaranteed that the optimal medical image quality is achieved, the safety of a patient is guaranteed, and the medical image quality is improved. The device can be widely applied to the technical field of medicine injection.

Description

Technical Field

[0001] The present invention relates to the technical field of drug injection, and particularly to a method, system, device and medium for monitoring the vascular pressure during contrast agent injection. Background Art

[0002] Contrast agents play a crucial role in medical imaging. The injection of contrast agents usually needs to complete a certain injection dose within a fixed time, mainly to ensure obtaining the best image quality, meeting the requirements of specific diagnostic tests, and reducing the dispersion of contrast agents in the body, so as to more clearly display blood vessels and tissue structures. If the contrast agent is injected too slowly or too quickly, the best imaging opportunity may be missed. This process is particularly important in examinations with precise imaging time requirements such as CT angiography or cardiac imaging, which can effectively save time and improve imaging quality. However, rapid injection also brings a series of problems. For example, the elderly or patients with fragile blood vessels may face the risk of blood vessel rupture. In addition, the viscosity of the contrast agent also affects the injection rate. High-viscosity contrast agents require greater injection pressure, increasing the possibility of blood vessel damage. Therefore, the medical team needs to accurately adjust the contrast agent type, concentration and injection rate according to factors such as the patient's renal function, allergy history, and blood vessel condition, and often uses a high-pressure syringe remotely to control the injection process to ensure safety and maximize the diagnostic effect. Contrast agent extravasation can cause mild local skin swelling, pallor or erythema, and severe cases can cause skin tissue damage, ulcers, necrosis, bringing great pain to patients, increasing the risk of medical disputes in the department, and also becoming one of the problems of nursing safety in the imaging department.

[0003] Blood vessel rupture during contrast agent injection is a serious complication, usually related to several key factors such as injection rate, contrast agent viscosity, and the patient's blood vessel condition. To prevent such events, the medical team will evaluate and predict risks through the following methods:

[0004] 1. Patient assessment: Before contrast agent injection, medical staff will carefully evaluate the patient's health status. This includes examining the patient's blood vessel condition (such as blood vessel sclerosis, inflammation or previous blood vessel damage), renal function (because the kidneys are the main organs for clearing contrast agents), and history of contrast agent allergy.

[0005] 2. Pre-detection: For different organs, medical staff will first perform a small-dose saline pre-injection to evaluate the safety of full-dose injection. However, for some lesion areas, the contrast of the lesion area may not be improved due to flow rate problems.

[0006] 3. Adjust injection parameters: Adjust the injection rate and dose of the contrast agent according to the specific situation of the patient. For patients with fragile blood vessels, the injection rate may need to be reduced to reduce the pressure on the blood vessel wall.

[0007] 4. Close monitoring: During the injection of contrast agent, the medical team will closely monitor the patient's vital signs and reactions so as to promptly detect and deal with any adverse reactions or complications.

[0008] Through these measures, the medical team can predict and reduce the risk of vascular rupture caused by contrast agent injection to a large extent, thereby ensuring patient safety and imaging quality. However, it should be noted that although these measures can minimize risks, they cannot completely eliminate all possible complications. The risk of vascular rupture still exists, especially in patients with severe vascular disease, vascular fragility or other high-risk factors. However, the current control of contrast agent risks mainly adopts pre-assessment of the patient's overall condition, assessment of the vascular status of the injection site by nurses' touch, flow rate adjustment based on experience, and control of flow rate by precise medical equipment during injection to reduce complications such as vascular rupture. However, it is still impossible to completely eliminate the risk, especially in high-risk patient groups. Therefore, how to qualitatively and quantitatively estimate and select this process is a key issue that needs to be solved urgently. Summary of the invention

[0009] The purpose of the present invention is to solve one of the technical problems existing in the prior art to at least a certain extent.

[0010] To this end, an object of an embodiment of the present invention is to provide a method for monitoring vascular pressure during contrast agent injection, which determines the optimal injection parameters by automatically collecting patient data, performs real-time feedback adjustment and early warning on the injection process, conducts a comprehensive evaluation of the imaging effect, and provides feedback to optimize the adjustment process. While ensuring the optimal medical image quality, the injection process is optimized, ensuring the safety of the patient and preventing the occurrence of conditions such as venous extravasation.

[0011] Another object of an embodiment of the present invention is to provide a contrast agent injection blood vessel pressure monitoring system.

[0012] In order to achieve the above technical objectives, the technical solutions adopted by the embodiments of the present invention include:

[0013] In a first aspect, an embodiment of the present invention provides a method for monitoring contrast agent injection blood vessel pressure, characterized by comprising:

[0014] Obtain initial information and physiological indicators of the target person;

[0015] Performing a status assessment on the target person according to the initial information and the physiological index to obtain a status assessment result;

[0016] Determining injection parameters according to the physiological indicators, the status assessment results, injection requirements, and injection drug properties;

[0017] Obtain pressure information during the injection process through a pressure sensor, and adjust and give early warnings to the injection parameters according to the pressure information;

[0018] Comprehensively evaluate the imaging quality of medical images to obtain a quality evaluation result.

[0019] Furthermore, the initial information includes the basic information and medical history of the target person, and obtaining the initial information and physiological indicators of the target person includes:

[0020] Collect the basic information and the medical history of the target person through a questionnaire system;

[0021] Collect the physiological indicators through a multi-parameter monitoring device.

[0022] Furthermore, the status evaluation result includes the tolerance of the local injection blood vessel during contrast agent injection and the physical risk of contrast agent injection. Evaluating the status of the target person according to the initial information and the physiological indicators to obtain a status evaluation result includes:

[0023] Predict the tolerance of the local injection blood vessel during contrast agent injection according to the initial information and the physiological indicators;

[0024] Predict the physical risk of contrast agent injection according to the initial information and the physiological indicators.

[0025] Furthermore, the injection requirement includes the detection target position that needs to be enhanced, the injection drug attributes include the chemical composition, concentration and viscosity of the contrast agent, and the injection parameters include the injection dose and injection rate of the contrast agent. Determining the injection parameters according to the physiological indicators, the status evaluation result, the injection requirement and the injection drug attributes includes:

[0026] Determine the injection dose and initial rate according to the physiological indicators, the status evaluation result, the injection requirement and the injection drug attributes;

[0027] According to the initial rate, predict the distribution of the contrast agent in the target person's body at different rates through simulation software, and obtain an ideal rate according to the distribution, and use the ideal rate as the injection rate.

[0028] Furthermore, adjusting and giving early warnings to the injection parameters according to the pressure information includes:

[0029] Judge whether the pressure information reaches the early warning threshold;

[0030] When the pressure information does not reach the early warning threshold, perform feedback control on the injection rate according to the pressure information;

[0031] When the pressure information exceeds the warning threshold, a warning is given according to the pressure information.

[0032] Furthermore, the warning given according to the pressure information includes:

[0033] Judging whether the warning level is an emergency according to the pressure information, and issuing a warning notice;

[0034] When the warning level is the emergency, stop the injection of the contrast agent;

[0035] When the warning level is not the emergency, reduce the injection rate.

[0036] Furthermore, the quality assessment result includes a subjective assessment result and an objective assessment result. The comprehensive assessment of the imaging quality of the medical image to obtain the quality assessment result includes:

[0037] Subjectively evaluating the imaging quality of the medical image manually according to the clarity and contrast of the medical image to obtain a subjective assessment result;

[0038] Objectively evaluating the imaging quality of the medical image according to the image quality evaluation index to obtain an objective assessment result.

[0039] In a second aspect, an embodiment of the present invention provides a contrast agent injection vascular pressure monitoring system, which is characterized by including:

[0040] An information acquisition module, which is used to acquire the initial information and physiological indexes of the target person;

[0041] A state evaluation module, which is used to evaluate the state of the target person according to the initial information and the physiological indexes to obtain a state evaluation result;

[0042] An injection parameter determination module, which is used to determine injection parameters according to the physiological indexes, the state evaluation result, injection requirements, and injection drug attributes;

[0043] An adjustment and warning module, which is used to obtain pressure information during the injection process through a pressure sensor, and adjust and give a warning to the injection parameters according to the pressure information;

[0044] A quality assessment module, which is used to comprehensively evaluate the imaging quality of the medical image to obtain a quality assessment result.

[0045] The initial information includes the basic information and medical history of the target person. The information acquisition module includes:

[0046] A questionnaire unit for collecting the basic information and medical history of the target person through a questionnaire system;

[0047] A multi-parameter monitoring unit for collecting the physiological indicators through a multi-parameter monitoring device

[0048] The status evaluation result includes the tolerance of the local injection blood vessel during contrast agent injection and the physical risk of contrast agent injection. The status evaluation module includes:

[0049] A tolerance evaluation unit for predicting the tolerance of the local injection blood vessel during contrast agent injection based on the initial information and the physiological indicators;

[0050] A risk evaluation unit for predicting the physical risk of contrast agent injection based on the initial information and the physiological indicators.

[0051] The injection requirements include the detection target positions to be enhanced. The injection drug attributes include the chemical composition, concentration, and viscosity of the contrast agent. The injection parameters include the injection dose and injection rate of the contrast agent. The injection parameter determination module includes:

[0052] An algorithm analysis unit for determining the injection dose and initial rate based on the physiological indicators, the status evaluation result, the injection requirements, and the injection drug attributes;

[0053] A simulation analysis unit for predicting the distribution of the contrast agent in the target person's body at different rates based on the initial rate through simulation software, obtaining the ideal rate according to the distribution, and using the ideal rate as the injection rate.

[0054] The adjustment and warning module includes:

[0055] A warning judgment unit for judging whether the pressure information reaches the warning threshold;

[0056] A rate control unit for performing feedback control on the injection rate according to the pressure information when the pressure information does not reach the warning threshold;

[0057] A warning unit for giving a warning according to the pressure information when the pressure information exceeds the warning threshold.

[0058] The warning unit includes:

[0059] A warning notification subunit for judging whether the warning level is an emergency according to the pressure information and sending a warning notification;

[0060] An emergency stop subunit, where the emergency stop unit is used to stop the contrast agent injection when the warning level is the emergency situation;

[0061] A rate reduction subunit, where the rate reduction unit is used to reduce the injection rate when the warning level is not the emergency situation.

[0062] The quality assessment result includes a subjective assessment result and an objective assessment result, and the quality assessment module includes:

[0063] A subjective assessment unit, where the subjective assessment unit is used to subjectively evaluate the imaging quality of the medical image manually according to the clarity and contrast of the medical image to obtain a subjective assessment result;

[0064] An objective assessment unit, where the objective assessment unit is used to objectively evaluate the imaging quality of the medical image according to the image quality evaluation index to obtain an objective assessment result.

[0065] In a third aspect, an embodiment of the present invention provides a device, including:

[0066] At least one processor;

[0067] At least one memory for storing at least one program;

[0068] When the at least one program is executed by the at least one processor, the at least one processor implements a contrast agent injection vascular pressure monitoring method as described above.

[0069] In a fourth aspect, an embodiment of the present invention further provides a computer-readable storage medium, in which a program executable by a processor is stored, and the program executable by the processor is used to execute a contrast agent injection vascular pressure monitoring method as described above when executed by the processor.

[0070] The advantages and beneficial effects of the present invention will be partially given in the following description, partially will become obvious from the following description, or will be understood through the practice of the present invention:

[0071] The present invention deeply collects patient data through a questionnaire system and multi-parameter monitoring devices, providing scientific data support for the determination of injection parameters; determines the optimal injection parameters through algorithm prediction and simulation analysis, making the selection of injection parameters more scientific and reasonable, reducing the uncertainty affected by human factors, ensuring the safety of patients while improving the imaging effect; monitors the pressure change through a pressure sensor, automatically adjusts the injection rate to the optimal rate, avoiding the risk of misoperation that may be caused by manual intervention, and can immediately adjust the injection rate to the best rate, further improving the imaging effect; issues a warning and makes an immediate response to the abnormal accumulation of pressure, ensuring the safety of patients; effectively optimizes the adjustment process of injection parameters through comprehensive evaluation of the imaging quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0072] Figure 1 It is a step diagram of a contrast agent injection blood vessel pressure monitoring method provided by an embodiment of the present invention;

[0073] Figure 2 It is a schematic diagram of the working process of a contrast agent injection blood vessel pressure monitoring method provided by an embodiment of the present invention;

[0074] Figure 3 It is a schematic diagram of a contrast agent injection blood vessel pressure monitoring system provided by an embodiment of the present invention;

[0075] Figure 4 It is a schematic diagram of the structure of a computer device provided by an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0076] The embodiments of the present invention are described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation to the present invention. For the step numbers in the following embodiments, they are only set for the convenience of description and illustration, and no limitation is imposed on the order between the steps. The execution order of each step in the embodiments can be adjusted adaptively according to the understanding of those skilled in the art.

[0077] In the description of the present invention, the meaning of "a plurality of" is two or more. If the first and second are described, it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence of the indicated technical features. In addition, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this application belongs.

[0078] Figure 1This is a step diagram of a contrast agent injection vascular pressure monitoring method provided by an embodiment of the present invention. Referring to Figure 1 An embodiment of the present invention provides a contrast agent injection vascular pressure monitoring method, including:

[0079] Obtain the initial information and physiological indicators of the target person;

[0080] Evaluate the status of the target person based on the initial information and physiological indicators to obtain a status evaluation result;

[0081] Determine the injection parameters according to the physiological indicators, status evaluation result, injection requirements, and injection drug attributes;

[0082] Obtain the pressure information during the injection process through a pressure sensor, and adjust and give early warnings for the injection parameters according to the pressure information;

[0083] Comprehensively evaluate the imaging quality of the medical image to obtain a quality evaluation result.

[0084] In some alternative embodiments, the initial information includes the basic information and medical history of the target person. Obtaining the initial information and physiological indicators of the target person includes:

[0085] Collect the basic information and medical history of the target person through a questionnaire system;

[0086] Collect physiological indicators through a multi-parameter monitoring device.

[0087] Specifically, in this embodiment, the basic information of the patient includes, but is not limited to, parameters such as the patient's age, gender, weight, height, etc.; the medical history includes, but is not limited to, the history of the patient's past diseases (such as cardiovascular and cerebrovascular disease history, hypertension, diabetes, abnormal liver and kidney function, history of radiotherapy and chemotherapy for malignant tumors, etc.) and contrast agent allergy history; the physiological indicators include, but are not limited to, indicators such as the basic serum creatinine value, blood pressure, and heart rate. Among them, the blood vessels of elderly patients may be more brittle, and the injection rate needs to be reduced. For female patients during pregnancy or lactation, some contrast agents may be contraindicated for them, and it is necessary to confirm in advance. The height and weight of the patient affect the dose and injection rate of the contrast agent. Larger patients may require a higher dose and injection rate to obtain better imaging effects; if the patient has cardiovascular and cerebrovascular diseases such as coronary heart disease and arteriosclerosis or has diabetes for a long time, the injection rate needs to be adjusted to prevent excessive blood vessel pressure. If the patient has abnormal liver and kidney function, the dosage of the contrast agent may need to be reduced or a contrast agent with lower toxicity may be used to reduce the metabolic pressure of the patient. If the patient has a history of contrast agent allergy, a contrast agent may need to be replaced or other alternative examination methods may be selected; the patient's basic serum creatinine value reflects the patient's renal function and is used as a reference for contrast agent dose selection. The patient's blood pressure and heart rate affect the distribution of the contrast agent and are used as a reference for the contrast injection rate.

[0088] In the above information, the initial information is obtained through an intelligent questionnaire system, which includes a series of static questions and dynamic questions. Among them, the dynamic questions will be dynamically adjusted according to the input data of the patient to deeply collect information that may affect the injection process; the physiological indicators are obtained through a multi-parameter monitoring device. Combining the initial information and physiological indicators can provide data support for subsequent evaluation of the patient's status and determination of injection parameters.

[0089] In some alternative embodiments, the status evaluation result includes the tolerance of the local injection blood vessel during contrast agent injection and the physical risk of contrast agent injection. The status of the target person is evaluated based on the initial information and physiological indicators to obtain the status evaluation result, including:

[0090] Predict the tolerance of the local injection blood vessel during contrast agent injection based on the initial information and physiological indicators;

[0091] Predict the physical risk of contrast agent injection based on the initial information and physiological indicators.

[0092] Specifically, in this embodiment, the status of the patient is evaluated based on the patient's physiological indicators such as basic serum creatinine value, blood pressure, heart rate, etc. and past medical history, including evaluating the patient's tolerance to the contrast agent and predicting the possible risks during the injection process. The prediction method can choose to use a rule-based model based on experience for prediction or choose an artificial intelligence algorithm for prediction. Among them, the rule-based model can set thresholds according to experience, and define the situation where specific physiological indicators exceed the thresholds as low tolerance or injection risk. The artificial intelligence algorithm can be a neural network classification model trained through a large amount of historical data of patients by a machine learning model. Input the patient's physiological indicators and medical history, and output the status evaluation result of the patient; through qualitative and quantitative evaluation of the patient's tolerance and injection risk, the efficiency of evaluation can be effectively improved, and at the same time, the error risk of manual evaluation can be reduced.

[0093] In some alternative embodiments, the injection requirements include the detection target location that needs to be enhanced, the injection drug attributes include the chemical composition, concentration, and viscosity of the contrast agent, and the injection parameters include the injection dose and injection rate of the contrast agent. The injection parameters are determined according to the physiological indicators, status evaluation result, injection requirements, and injection drug attributes, including:

[0094] Determine the injection dose and initial rate according to the physiological indicators, status evaluation result, injection requirements, and injection drug attributes;

[0095] According to the initial rate, predict the distribution of the contrast agent in the target person's body at different rates through simulation software, and obtain the ideal rate according to the distribution situation, and use the ideal rate as the injection rate.

[0096] Specifically, in this embodiment, the injection requirements are determined according to which part needs to be imaged based on the patient's examination items. For different detection target positions that need to be enhanced, different contrast agent distribution characteristics are required to ensure the imaging effect. Furthermore, the injection dose and injection rate need to be set specifically. The physical and chemical properties and viscosity of the contrast agent affect the distribution effect of the contrast agent and the patient's blood vessel pressure. The injection parameters mainly include the injection dose and injection rate of the contrast agent. When the injection volume is too low, the imaging may be unclear. When the injection volume is too high, artifacts or details may be obscured. The injection rate determines the distribution characteristics of the contrast agent. If the rate is too fast, the contrast agent may not be evenly distributed. If it is too slow, the enhancement effect may be affected. At the same time, the injection dose and injection rate of the contrast agent have a direct impact on the patient's blood vessel state. The determination of its parameters requires maintaining a balance between the imaging effect and patient safety. In this embodiment, a neural network model can be trained with existing patient data. By inputting the above parameters, the optimal injection dose and injection rate can be predicted, and the injection dose and injection rate can be initially determined. At the same time, simulation software is used to simulate the distribution of the contrast agent in the patient's body at different rates, so as to further determine the optimal injection rate.

[0097] In some alternative embodiments, the injection parameters are adjusted and warned according to the pressure information, including:

[0098] Judge whether the pressure information reaches the warning threshold;

[0099] When the pressure information does not reach the warning threshold, feedback control is performed on the injection rate according to the pressure information;

[0100] When the pressure information exceeds the warning threshold, a warning is issued according to the pressure information.

[0101] Specifically, in this embodiment, the micro pressure sensors deployed around the injection needle and the injection area are used to monitor the pressure changes of the patient's blood vessels in real time. The pressure information is analyzed through the system's data analysis program. The warning threshold is set according to the patient's personalized data, and the warning threshold is appropriately reduced for patients with a higher injection risk. When the current pressure level does not exceed the warning threshold, the optimal rate under the current pressure is determined through the analysis program, and the injection rate is automatically adjusted through the flow rate controller, reducing the risk of operation errors caused by manual intervention. At the same time, the accuracy of injection rate control is improved, and the safety of the injection process is enhanced. When the current pressure level exceeds the warning threshold, a warning message is issued through the system, and the warning operation process is executed.

[0102] In some alternative embodiments, a warning is issued according to the pressure information, including:

[0103] Judge whether the warning level is an emergency according to the pressure information and issue a warning notice;

[0104] When the warning level is an emergency, stop the injection of the contrast agent;

[0105] When the warning level is a non-emergency, reduce the injection rate.

[0106] Specifically, in this embodiment, when it is detected that the pressure of the patient abnormally accumulates and a warning is issued, the system will determine whether the current pressure level of the patient belongs to an emergency. If it is an emergency, the injection will be paused. If it is not an emergency, the injection rate will be slowed down. At the same time, when necessary, physiological saline will be injected to dilute the contrast agent to ensure the safety of the patient and avoid extravasation.

[0107] In some alternative embodiments, the quality assessment result includes a subjective assessment result and an objective assessment result. The imaging quality of the medical image is comprehensively evaluated to obtain the quality assessment result, including:

[0108] Subjectively evaluate the imaging quality of the medical image by artificial according to the clarity and contrast of the medical image to obtain the subjective assessment result;

[0109] Objectively evaluate the imaging quality of the medical image according to the image quality evaluation index to obtain the objective assessment result.

[0110] Specifically, in this embodiment, after the injection, it is necessary to comprehensively evaluate the injection parameters during the contrast agent injection process according to the imaging effect. The evaluation methods include the subjective quality evaluation by the physician according to factors such as the clarity, contrast, and detail display effect of the image, and the objective quality evaluation of the image through quantitative indexes such as the signal-to-noise ratio and contrast noise. The result of this comprehensive evaluation reflects whether the adjustment of the injection parameters has achieved beneficial effects, which helps to make the adjustment of the injection parameters more scientific and standardized, and optimize the determination process of the injection parameters and the parameters of each model during the adjustment process.

[0111] Figure 2 It is a schematic diagram of the working process of a contrast agent injection blood vessel pressure monitoring method provided by an embodiment of the present invention. Refer to Figure 2, in this embodiment, before injection, the intelligent questionnaire system is used to collect the basic information and medical history of the patient. At the same time, according to the patient's answers, the subsequent questions are dynamically updated to deeply collect information that may affect the injection process. The multi-parameter monitoring device is used to collect multiple physiological indicators of the patient in real time. Combining the physiological indicators and medical history, the artificial intelligence algorithm is used to predict the patient's tolerance to the contrast agent and potential risks, and to evaluate the patient's status. Combining the patient's physiological indicators, status evaluation results, injection requirements, and the properties of the injected drug, the injection dose and injection rate of the contrast agent are initially determined. At the same time, the simulation software is used to simulate the distribution of the contrast agent in the patient's body at different rates, and finally the ideal rate to achieve the best imaging effect is determined; during the injection process, the multi-parameter monitoring device continuously tracks the patient's physiological state, the micro pressure sensor monitors the pressure change, the analysis program and the feedback control system automatically identify and adjust to the optimal rate, and at the same time detect whether the pressure level exceeds the warning threshold, and when it exceeds, the operation of the warning process is executed; after the injection, through the comprehensive subjective and objective evaluation of the imaging quality, the adjustment process of the injection parameters is optimized.

[0112] It can be recognized that in the embodiment of the present invention, the intelligent questionnaire system and the multi-parameter monitoring device are used to deeply collect patient data, providing scientific data support for the determination of injection parameters; the optimal injection parameters are determined through algorithm prediction and simulation analysis, making the selection of injection parameters more scientific and reasonable, reducing the uncertainty affected by human factors, ensuring the safety of patients while improving the imaging effect; the pressure change is monitored by the pressure sensor, and the injection rate is automatically adjusted to the optimal rate, avoiding the risk of misoperation that may be caused by manual intervention, and at the same time being able to immediately adjust the injection rate to the best rate, further improving the imaging effect; early warning and immediate response to abnormal pressure accumulation ensure the safety of patients; through the comprehensive evaluation of the imaging quality, the adjustment process of the injection parameters can be effectively optimized.

[0113] Referring to Figure 3 , the embodiment of the present invention provides a contrast agent injection vascular pressure monitoring system, which is characterized in that it includes:

[0114] An information acquisition module, which is used to acquire the initial information and physiological indicators of the target person;

[0115] A status evaluation module, which is used to evaluate the status of the target person according to the initial information and physiological indicators to obtain a status evaluation result;

[0116] An injection parameter determination module, which is used to determine injection parameters according to physiological indicators, status evaluation results, injection requirements, and the properties of the injected drug;

[0117] The adjustment and warning module is used to obtain the pressure information during the injection process through a pressure sensor, and adjust and give warnings for the injection parameters according to the pressure information;

[0118] The quality assessment module is used to comprehensively evaluate the imaging quality of medical images and obtain the quality assessment result.

[0119] The initial information includes the basic information and medical history of the target person. The information acquisition module includes:

[0120] The questionnaire unit is used to collect the basic information and medical history of the target person through a questionnaire system;

[0121] The multi-parameter monitoring unit is used to collect physiological indicators through multi-parameter monitoring equipment

[0122] The status assessment result includes the tolerance of the local injection blood vessel during the contrast agent injection and the physical risk of the contrast agent injection. The status assessment module includes:

[0123] The tolerance assessment unit is used to predict the tolerance of the local injection blood vessel during the contrast agent injection according to the initial information and physiological indicators;

[0124] The risk assessment unit is used to predict the physical risk of the contrast agent injection according to the initial information and physiological indicators.

[0125] The injection requirements include the detection target location that needs to be enhanced. The injection drug attributes include the chemical composition, concentration, and viscosity of the contrast agent. The injection parameters include the injection dose and injection rate of the contrast agent. The injection parameter determination module includes:

[0126] The algorithm analysis unit is used to determine the injection dose and initial rate according to the physiological indicators, status assessment result, injection requirements, and injection drug attributes;

[0127] The simulation analysis unit is used to predict the distribution of the contrast agent in the target person's body at different rates according to the initial rate through simulation software, obtain the ideal rate according to the distribution, and use the ideal rate as the injection rate.

[0128] The adjustment and warning module includes:

[0129] The warning judgment unit is used to judge whether the pressure information reaches the warning threshold;

[0130] The rate control unit is used to perform feedback control on the injection rate according to the pressure information when the pressure information does not reach the warning threshold;

[0131] An early warning unit, which is used to give an early warning based on the pressure information when the pressure information exceeds the early warning threshold.

[0132] The early warning unit includes:

[0133] A warning notice subunit, which is used to judge whether the early warning level is an emergency according to the pressure information and issue a warning notice;

[0134] An emergency stop subunit, which is used to stop the contrast agent injection when the early warning level is an emergency;

[0135] A rate reduction subunit, which is used to reduce the injection rate when the early warning level is a non-emergency situation.

[0136] The quality assessment result includes a subjective assessment result and an objective assessment result. The quality assessment module includes:

[0137] A subjective assessment unit, which is used to subjectively evaluate the imaging quality of medical images manually according to the clarity and contrast of medical images to obtain a subjective assessment result;

[0138] An objective assessment unit, which is used to objectively evaluate the imaging quality of medical images according to the image quality evaluation index to obtain an objective assessment result.

[0139] Refer to Figure 4 , an embodiment of the present invention provides a computer device, including:

[0140] At least one processor;

[0141] At least one memory, which is used to store at least one program;

[0142] When the above at least one program is executed by the above at least one processor, the above at least one processor implements the above method for monitoring the blood vessel pressure during contrast agent injection.

[0143] The content in the above method embodiment is applicable to the device embodiment of the present invention. The functions specifically implemented by the device embodiment of the present invention are the same as those of the above method embodiment, and the beneficial effects achieved are also the same as those of the above method embodiment.

[0144] An embodiment of the present invention also provides a computer-readable storage medium, in which a program executable by a processor is stored. The program executable by the processor is used to execute the above method for monitoring the blood vessel pressure during contrast agent injection when executed by the processor.

[0145] A computer-readable storage medium according to an embodiment of the present invention can execute a contrast agent injection blood vessel pressure monitoring method provided by an embodiment of the method of the present invention, can execute any combination of implementation steps of the method embodiment, and has corresponding functions and beneficial effects of the method.

[0146] An embodiment of the present invention also discloses a computer program product or a computer program. The computer program product or the computer program includes computer instructions, and the computer instructions are stored in a computer-readable storage medium. A processor of a computer device can read the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the computer device executes Figure 1 the contrast agent injection blood vessel pressure monitoring method shown.

[0147] In some alternative embodiments, the functions / operations mentioned in the block diagrams may not occur in the order mentioned in the operation diagrams. For example, depending on the functions / operations involved, two consecutive blocks shown may actually be executed substantially simultaneously or the above-mentioned blocks can sometimes be executed in the reverse order. In addition, the embodiments presented and described in the flowcharts of the present invention are provided by way of example for the purpose of providing a more comprehensive understanding of the technology. The disclosed methods are not limited to the operations and logical flows presented herein. Alternative embodiments are contemplated, in which the order of various operations is changed and the sub-operations described as part of a larger operation are executed independently.

[0148] In addition, although the present invention has been described in the context of functional modules, it should be understood that unless otherwise stated to the contrary, one or more of the above functions and / or features may be integrated in a single physical device and / or software module, or one or more functions and / or features may be implemented in separate physical devices or software modules. It can also be understood that a detailed discussion of the actual implementation of each module is not necessary for understanding the present invention. More precisely, considering the attributes, functions and internal relationships of various functional modules in the devices disclosed herein, the actual implementation of the modules will be understood within the ordinary skills of an engineer. Therefore, those skilled in the art can implement the present invention as set forth in the claims without undue experimentation using ordinary techniques. It can also be understood that the specific concepts disclosed are merely illustrative and are not intended to limit the scope of the present invention, and the scope of the present invention is determined by the full scope of the appended claims and their equivalents.

[0149] If the above functions are implemented in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or a part of this technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the above methods in various embodiments of the present invention. The aforementioned storage medium includes: various media that can store program codes, such as USB flash drives, mobile hard disks, read-only memories (ROM, Read-Only Memory), random access memories (RAM, Random Access Memory), magnetic disks, or optical discs.

[0150] The logic and / or steps represented in the flowchart or described in other ways herein, for example, can be considered as a definite sequence list of executable instructions for implementing logical functions, and can be specifically implemented in any computer-readable medium for use by an instruction execution system, apparatus, or device (such as a computer-based system, a system including a processor, or other systems that can fetch instructions from the instruction execution system, apparatus, or device and execute the instructions), or in combination with these instruction execution systems, apparatus, or devices. For the purposes of this specification, a "computer-readable medium" can be any device that can contain, store, communicate, propagate, or transport a program for use by or in combination with an instruction execution system, apparatus, or device.

[0151] More specific examples (non-exhaustive list) of computer-readable media include the following: an electrical connection part (electronic device) having one or more wirings, a portable computer disk cartridge (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium can even be paper or other suitable media on which the above program can be printed, because the above program can be obtained electronically, for example, by optically scanning the paper or other media, then editing, interpreting, or processing it in other suitable ways when necessary, and then storing it in a computer memory.

[0152] It should be understood that various parts of the present invention can be implemented by hardware, software, firmware or a combination thereof. In the above embodiments, multiple steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, any one or a combination of the following techniques well known in the art can be used: discrete logic circuits having logic gate circuits for implementing logical functions on data signals, application specific integrated circuits having appropriate combinational logic gate circuits, programmable gate arrays (PGAs), field programmable gate arrays (FPGAs), etc.

[0153] In the above description of this specification, the descriptions referring to the terms "one embodiment / example", "another embodiment / example" or "certain embodiments / examples", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiments or examples are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0154] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the claims and their equivalents.

[0155] The above has specifically described the preferred embodiments of the present invention, but the present invention is not limited to the above embodiments. Those skilled in the art can also make various equivalent deformations or substitutions without departing from the spirit of the present invention, and these equivalent deformations or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A method for monitoring blood vessel pressure during contrast agent injection, characterized in that: include: Obtain initial information and physiological indicators of the target person; Performing a status assessment on the target person according to the initial information and the physiological index to obtain a status assessment result; Determining injection parameters according to the physiological indicators, the status assessment results, injection requirements, and injection drug properties; Acquiring pressure information during the injection process through a pressure sensor, and adjusting and issuing an early warning on the injection parameters according to the pressure information; Perform a comprehensive assessment of the imaging quality of medical images to obtain quality assessment results.

2. A contrast agent injection blood vessel pressure monitoring method according to claim 1, characterized in that: The initial information includes the basic information and medical history of the target person, and the initial information and physiological indicators of the target person are obtained, including: Collecting the basic information and medical history of the target person through a questionnaire system; The physiological indicators are collected through a multi-parameter monitoring device.

3. A contrast agent injection blood vessel pressure monitoring method according to claim 1, characterized in that: The state assessment result includes the tolerance of the local injection blood vessels during contrast agent injection and the physical risk of contrast agent injection. The state of the target person is assessed according to the initial information and the physiological index to obtain the state assessment result, including: predicting the tolerance of the local injection blood vessel during the contrast agent injection according to the initial information and the physiological index; The physical risk of contrast agent injection is predicted based on the initial information and the physiological index.

4. A contrast agent injection blood vessel pressure monitoring method according to claim 1, characterized in that: The injection requirement includes the detection target position that needs to be enhanced, the injection drug properties include the chemical composition, concentration and viscosity of the contrast agent, the injection parameters include the injection dose and injection rate of the contrast agent, and the injection parameters are determined according to the physiological index, the state assessment result, the injection requirement and the injection drug properties, including: Determine the injection dose and initial rate according to the physiological index, the state assessment result, the injection requirement and the injection drug property; According to the initial rate, the distribution of the contrast agent in the target person's body at different rates is predicted by simulation software, and an ideal rate is obtained based on the distribution, and the ideal rate is used as the injection rate.

5. A contrast agent injection blood vessel pressure monitoring method according to claim 4, characterized in that: The step of adjusting and warning the injection parameters according to the pressure information includes: Determining whether the pressure information reaches a warning threshold; When the pressure information does not reach the warning threshold, feedback control is performed on the injection rate according to the pressure information; When the pressure information exceeds the warning threshold, a warning is issued according to the pressure information.

6. A contrast agent injection blood vessel pressure monitoring method according to claim 5, characterized in that: The step of providing an early warning according to the pressure information includes: Determine whether the warning level is an emergency situation based on the pressure information and issue a warning notification; When the warning level is the emergency situation, stopping contrast agent injection; When the warning level is not the emergency situation, the injection rate is reduced.

7. A contrast agent injection blood vessel pressure monitoring method according to claim 1, characterized in that: The quality assessment result includes a subjective assessment result and an objective assessment result. The quality assessment result obtained by performing a comprehensive assessment on the imaging quality of the medical image includes: Performing a subjective imaging quality assessment on the medical image manually according to the clarity and contrast of the medical image to obtain a subjective assessment result; An objective imaging quality assessment is performed on the medical image according to the image quality assessment index to obtain an objective assessment result.

8. A contrast agent injection blood vessel pressure monitoring system, characterized in that: include: An information acquisition module, which is used to acquire initial information and physiological indicators of the target person; A status assessment module, the status assessment module is used to perform a status assessment on the target person according to the initial information and the physiological index to obtain a status assessment result; An injection parameter determination module, the injection parameter determination module is used to determine injection parameters according to the physiological index, the state assessment result, the injection requirement and the injection drug property; An adjustment and warning module, which is used to obtain pressure information during the injection process through a pressure sensor, and adjust and warn the injection parameters according to the pressure information; The quality assessment module is used to perform a comprehensive assessment of the imaging quality of medical images to obtain a quality assessment result.

9. A device, characterized in that: include: at least one processor; at least one memory for storing at least one program; When the at least one program is executed by the at least one processor, the at least one processor implements a contrast agent injection blood vessel pressure monitoring method as described in any one of claims 1-7.

10. A computer-readable storage medium storing a program executable by a processor, characterized in that: The processor-executable program is used to perform a contrast agent injection blood vessel pressure monitoring method as described in any one of claims 1-7 when executed by the processor.

Images