CN117122309A

CN117122309A - Method and device for monitoring movement behavior of patient in magnetic resonance operation

Info

Publication number: CN117122309A
Application number: CN202311086644.2A
Authority: CN
Inventors: 曾伟科; 陈圣尖; 张彬; 李添民; 黄加奕; 杨泽宏
Original assignee: Sun Yixian Memorial Hospital Of Sun Yat Sen University Shenzhen Shantou Central Hospital
Current assignee: Sun Yixian Memorial Hospital Of Sun Yat Sen University Shenzhen Shantou Central Hospital
Priority date: 2023-08-28
Filing date: 2023-08-28
Publication date: 2023-11-28

Abstract

The disclosure provides a method and a device for monitoring movement behaviors of a patient in magnetic resonance surgery, which relate to the technical field of human body detection and comprise the following steps: acquiring individual vital sign information of a patient based on a plurality of monitoring devices worn on the patient during a magnetic resonance procedure; judging a first movement grade corresponding to the patient according to each vital sign information and the corresponding reference information; acquiring a first image of a patient in the operation process, and comparing the first image with a preset reference image to judge the corresponding movement range of the patient; determining a second movement grade corresponding to the movement range based on a preset mapping relation; judging a third movement level corresponding to the patient based on measurement information measured by an inertial sensor mounted on the patient; and judging whether the movement behavior of the patient has hidden danger or not according to the first movement grade, the second movement grade and the third movement grade. Therefore, the movement behavior of the patient can be timely, reliably and accurately detected, and whether hidden danger exists or not can be judged.

Description

Method and device for monitoring movement behavior of patient in magnetic resonance operation

Technical Field

The invention relates to the technical field of human body monitoring, in particular to a method and a device for monitoring the movement behavior of a patient in a magnetic resonance operation.

Background

Magnetic resonance surgery needs to be performed under the guidance of Magnetic Resonance Imaging (MRI), so the patient needs to remain relatively stationary during the procedure to ensure that the surgical knife can be accurately positioned and controlled. However, for various reasons (e.g., respiration, heartbeat, discomfort, etc.), the patient may move during the procedure, resulting in a failure of the procedure.

In order to solve the problem, medical staff should closely observe and monitor vital signs such as respiration and heartbeat of a patient in the operation process, and timely find out movement of the patient so as to take measures and correct in time. However, medical staff is required to pay close attention to the patient, so that the medical staff cannot fully concentrate on the operation process, and certain potential safety hazards exist.

Disclosure of Invention

The present disclosure aims to solve, at least to some extent, one of the technical problems in the related art.

Embodiments of the first aspect of the present disclosure propose a method for monitoring patient movement behavior in magnetic resonance surgery, comprising:

acquiring individual vital sign information of a patient based on a plurality of monitoring devices worn on the patient during a magnetic resonance procedure;

judging a first movement grade corresponding to the patient according to each vital sign information and the corresponding reference information;

acquiring a first image of the patient in the operation process, and comparing the first image with a preset reference image to judge the corresponding movement range of the patient;

determining a second movement grade corresponding to the movement range based on a preset mapping relation;

judging a third movement level corresponding to the patient based on measurement information measured by an inertial sensor mounted on the patient;

and judging whether the movement behavior of the patient has hidden danger or not according to the first movement grade, the second movement grade and the third movement grade.

Embodiments of a second aspect of the present disclosure provide an apparatus for monitoring patient movement behavior in magnetic resonance procedures, comprising:

a first acquisition module for acquiring individual vital sign information of a patient based on a plurality of monitoring devices worn on the patient during a magnetic resonance procedure;

the first judging module is used for judging a first movement grade corresponding to the patient according to each vital sign information and the corresponding reference information;

the second acquisition module is used for acquiring a first image of the patient in the operation process and comparing the first image with a preset reference image to judge the corresponding movement range of the patient;

the determining module is used for determining a second movement grade corresponding to the movement range based on a preset mapping relation;

a second judging module for judging a third movement level corresponding to the patient based on measurement information measured by an inertial sensor mounted on the patient;

and the third judging module is used for judging whether the movement behavior of the patient has hidden danger or not according to the first movement grade, the second movement grade and the third movement grade.

An embodiment of a third aspect of the present disclosure provides an electronic device, including: a memory, a processor and a computer program stored on the memory and executable on the processor, which processor, when executing the program, implements a method for monitoring patient movement behavior in a magnetic resonance procedure as set forth in an embodiment of the first aspect of the disclosure.

An embodiment of a fourth aspect of the present disclosure proposes a non-transitory computer readable storage medium storing a computer program which, when executed by a processor, implements a method for monitoring patient movement behaviour in a magnetic resonance procedure as proposed by an embodiment of the first aspect of the present disclosure.

The method and the device for monitoring the movement behavior of the patient in the magnetic resonance operation have the following beneficial effects:

in the embodiment of the disclosure, first vital sign information of a patient is acquired based on a plurality of monitoring devices worn on the patient in a magnetic resonance operation, then a first movement grade corresponding to the patient is judged according to each vital sign information and corresponding reference information, then a first image of the patient in the operation process is acquired, the first image and a preset reference image are compared to judge a movement range corresponding to the patient, then a second movement grade corresponding to the movement range is determined based on a preset mapping relation, finally a third movement grade corresponding to the patient is judged based on measurement information measured by an inertial sensor mounted on the patient, and then whether the movement behavior of the patient has hidden danger is judged according to the first movement grade, the second movement grade and the third movement grade. From this, can combine a plurality of physiological characteristic information, inertial sensor measuring information and the image information of patient, three dimension, the omnidirectional is confirmed the mobile state of patient, and then judges whether great removal appears in the patient, timely early warning carries out, prevents to influence doctor's operation, causes the injury to the patient, has reduced doctor's work degree of difficulty for doctor can concentrate on the operation, ensures going on smoothly of operation.

Additional aspects and advantages of the disclosure will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the disclosure.

Drawings

The foregoing and/or additional aspects and advantages of the present disclosure will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

FIG. 1 is a flow chart of a method for monitoring patient movement behavior in a magnetic resonance procedure according to an embodiment of the present disclosure;

fig. 2 is a block diagram of an apparatus for monitoring patient movement behavior in a magnetic resonance procedure, in accordance with an embodiment of the present disclosure.

Description of the embodiments

Embodiments of the present disclosure are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and intended for the purpose of explaining the present disclosure and are not to be construed as limiting the present disclosure.

Methods and apparatus for monitoring patient movement behavior in magnetic resonance procedures in accordance with embodiments of the present disclosure are described below with reference to the accompanying drawings.

Fig. 1 is a flow chart of a method for monitoring patient movement behavior in a magnetic resonance procedure according to a first embodiment of the present disclosure.

As shown in fig. 1, the method for monitoring patient movement behavior during magnetic resonance surgery may include the steps of:

step 101, acquiring individual vital sign information of a patient based on a plurality of monitoring devices worn on the patient during a magnetic resonance procedure.

Optionally, the plurality of monitoring devices worn on the patient include at least:

electrocardiographic electrodes worn on the chest of a patient:

a cuff, a finger clip, an ear clip, a chest strap, an trachea cannula and a thermometer,

the vital sign information at least comprises an electrocardiogram waveform, a systolic pressure, a diastolic pressure, blood oxygen saturation, a respiratory rate, a respiratory depth and a body temperature.

It should be noted that the electrocardiogram electrode worn on the chest of the patient may be used to record an electrocardiogram waveform to monitor the electrical activity and heart rate of the heart.

The blood pressure monitoring device is a blood pressure monitoring device such as a cuff, a finger clip or a chest strap, and can acquire the systolic pressure and the diastolic pressure of a patient so as to evaluate the blood pressure change and the function of a cardiovascular system.

The blood oxygen saturation monitoring device is a device such as a finger clip, and can monitor the blood oxygen saturation of a patient, namely the oxygen content in blood, in real time so as to evaluate the respiration and oxygen supply condition of the patient.

Respiratory rate monitoring devices may use respiratory tape, endotracheal tubes, etc. to monitor the respiratory rate and depth of respiration of a patient for respiratory function and pulmonary condition.

A body temperature monitoring device, such as a thermometer, may be used to monitor the body temperature of a patient, as well as changes in body temperature over time.

By the monitoring equipment, vital sign information such as electrocardiogram waveform, systolic pressure, diastolic pressure, blood oxygen saturation, respiratory frequency, respiratory depth and body temperature of a patient can be obtained in real time. Such information is important for assessing the physiological state of a patient, monitoring changes in conditions, and guiding treatment and surgical procedures. In magnetic resonance surgery, accurate acquisition and monitoring of such information helps to ensure patient safety and successful performance of the surgery.

Step 102, according to each vital sign information and the corresponding reference information, judging a first movement level corresponding to the patient.

It should be noted that the reference interval may be determined first, and for each vital sign information, the reference interval may be determined according to the corresponding reference information. These reference intervals are used to characterize the extent of discomfort to the user, such as electrocardiographic waveforms, systolic pressure, diastolic pressure, blood oxygen saturation, respiratory rate, depth of respiration, body temperature, etc., after which vital sign information can be compared with the reference intervals, and each vital sign information actually measured is compared with its corresponding reference interval. It is checked whether the index value is located within the reference interval.

And obtaining a plurality of judging results according to the comparison result, namely judging whether the index value is positioned in the corresponding reference interval. For each vital sign information, the determination result is whether the index value is within the reference interval, and may be expressed as satisfied or unsatisfied.

The number may be 2 or 3, and is not limited thereto.

And according to the requirements, if the specified number of judgment results meet the condition that the index value is positioned in the corresponding reference interval, determining the first movement grade as the first grade. Otherwise, the first movement level is the second level.

Electrocardiographic waveforms: for electrocardiographic waveforms, often, some abnormal waveform characteristics such as too fast heart rate, too slow heart rate, arrhythmia, etc. may cause discomfort to the user. Specifically, abnormal or irregular changes in the characteristics of the P wave, QRS wave, and T wave in the electrocardiogram may cause discomfort.

Systolic and diastolic pressures: changes in blood pressure within the normal range will not normally cause discomfort, but if the blood pressure is too high or too low, discomfort symptoms such as dizziness, headache, chest distress, etc. may result.

Blood oxygen saturation: the normal range of blood oxygen saturation does not cause discomfort in most cases. However, if the blood oxygen saturation is too low, for example, less than 90%, discomfort such as dyspnea, palpitation, headache, etc. may be caused.

Respiratory rate and depth of respiration: in the normal range, the breathing frequency and depth generally do not cause significant discomfort. However, abnormal breathing rate (too fast or too slow) or depth of breathing may lead to symptoms such as dyspnea, shortness of breath, or sweating.

Body temperature: body temperatures in the normal range generally do not cause discomfort. However, when the body temperature is too high (fever) or too low (hypothermia), the patient may feel uncomfortable, such as coldness or sweating.

It should be noted that the above description is merely a general view and illustration of these vital signs in general. Through the above-described procedure, the first movement level can be determined according to the reference section of each vital sign information and the judgment result compared with the reference section. This grading can be used to comprehensively evaluate vital sign information and to take appropriate treatment measures, such as adjusting the treatment regimen or taking appropriate intervention measures, if necessary.

It should be noted that, the specific determination of the parameter interval and the specified number may be defined and explained in advance by the professional medical staff in the field, may be formulated according to the specific situation and the actual requirement, and is determined according to the reference range of the medical professional institution and the actual situation of the individual.

Step 103, acquiring a first image of the patient in the operation process, and comparing the first image with a preset reference image to judge the corresponding movement range of the patient.

Specifically, during the surgical procedure, a first image of the patient during the surgical procedure may be captured in real time based on the imaging device. The image capturing apparatus may be any apparatus having a photographing function.

Wherein the reference image may be one that is determined from individual characteristics of the patient prior to the surgery. If the body of the patient and the body position in the reference image are coincident, this is indicated as normal. The larger the deviation between the patient in the first image and the reference image, the larger the movement range of the patient is indicated.

Comparing the first image with a preset reference image, the difference and the similarity between the two images can be compared for the structure or the region of interest, and the moving range can be quantitatively evaluated.

By comparing the first image with the reference image, the range of movement of the patient during the procedure can be assessed. Based on the magnitude and location of the discrepancy, it may be determined whether the patient has moved or shifted accidentally during the procedure.

Step 104, determining a second movement level corresponding to the movement range based on the preset mapping relation.

The movement levels corresponding to the areas of the different movement ranges may be established in advance. The larger the area corresponding to the movement range, the higher the second movement level is, and the smaller the area corresponding to the movement range, the lower the second movement level is, and the movement of the patient is slight.

Step 105, determining a third movement level corresponding to the patient based on measurement information measured by an inertial sensor mounted on the patient.

Specifically, the first measurement information and the second measurement information may be acquired based on an accelerometer and a gyroscope mounted on the patient, respectively.

An Accelerometer (Accelerometer) measures the acceleration of an object in space, i.e. the relation between the acceleration of the object and the external forces to which it is subjected. It is typically achieved by measuring the acceleration of the object in three axial directions (x, y, z). The accelerometer can be used for detecting linear acceleration, vibration, tilting and other movements of the object, and the first measurement information is acceleration.

A Gyroscope (gyroscillope) measures the angular velocity or rotation rate of an object. It senses the speed and direction of the object's rotation about three axes. Gyroscopes typically provide information on attitude changes, such as rotation, turning, and swinging of an object, by measuring the angular velocity of the object (the rotational rate about the x, y, z axes), the second measurement information being the angular velocity.

And acquiring the motion state information of the body of the patient in the operation process through sensors such as an accelerometer, a gyroscope and the like. These sensors can measure data such as acceleration, angular velocity, etc. of the patient.

Before or during the operation, measurement information of a reference point or datum point is acquired. The acceleration and angular velocity of the patient at rest or at a specific location can be recorded as reference measurement information.

Comparing the first and second measurement information with the reference measurement information, the movement of the patient during the operation can be estimated by analyzing the difference, the trend of change, etc. between the acceleration and angular velocity data and the reference measurement information.

Judging a third movement level: and according to the comparison result and a preset judgment standard, judging the third movement grade corresponding to the patient.

Comparing the first difference between the acceleration and the corresponding reference acceleration with the second difference between the angular velocity and the corresponding reference angular velocity, respectively, and then determining the scores corresponding to the first difference and the second difference, respectively, and performing weighted addition, wherein the higher the final score is, the higher the third movement grade is, which indicates that the patient moves more severely.

And step 106, judging whether the movement behavior of the patient has hidden danger or not according to the first movement grade, the second movement grade and the third movement grade.

Optionally, determining that the movement behavior of the patient has hidden trouble when the first movement level is a first level and the second movement level is greater than a first threshold;

determining that the movement behavior of the patient has hidden danger under the condition that the first movement level is the first level and the third movement level is greater than the second threshold value;

and under the condition that the first movement level is a second level, the second movement level is larger than the first threshold value, and the third movement level is larger than the second threshold value, determining that the movement behavior of the patient has hidden danger.

The higher the second movement level and the third movement level, the larger the movement range of the patient, the more intense the movement behavior, and thus there is a risk. If the first movement level is the first level, the patient is indicated to be uncomfortable, and if the second movement level of the patient is larger than the first threshold value or the third movement level is larger than the second threshold value, the movement behavior of the patient is indicated to be relatively intense, so that early warning can be performed at the moment.

Or if the first movement level of the patient is the second level, the patient does not feel uncomfortable, but the second movement level of the patient is larger than the first threshold value, and the third movement level is larger than the second threshold value, the movement behavior of the patient is very intense at the moment, the patient has a great hidden danger, and early warning is needed.

If the movement behavior of the patient is judged to have hidden danger, the alarm can be given out through the buzzer, or the early warning indicator lamp of the operating room is controlled to emit light.

Fig. 2 is a block diagram of an apparatus for monitoring patient movement behavior in a magnetic resonance procedure according to a second embodiment of the present disclosure.

As shown in fig. 2, the apparatus 200 for monitoring patient movement behavior during magnetic resonance surgery may include:

a first acquisition module 210 for acquiring individual vital sign information of a patient based on a plurality of monitoring devices worn on the patient during a magnetic resonance procedure;

a first judging module 220, configured to judge a first movement level corresponding to the patient according to each vital sign information and corresponding reference information;

a second obtaining module 230, configured to obtain a first image of the patient during the operation, and compare the first image with a preset reference image to determine a movement range corresponding to the patient;

a determining module 240, configured to determine a second movement level corresponding to the movement range based on a preset mapping relationship;

electrocardiographic electrodes worn on the chest of a patient:

Optionally, the first obtaining module is specifically configured to:

determining a reference interval corresponding to each vital sign according to the reference information corresponding to each vital sign information, wherein the reference interval is used for representing an interval causing discomfort of the user body feeling;

comparing each vital sign information with a corresponding reference interval to obtain a plurality of judgment results, wherein the judgment results are whether index values corresponding to any vital sign information are located in the corresponding reference interval or not;

and if the specified number of judgment results are that the index values are in the corresponding reference intervals, determining that the first movement grade is a first grade, otherwise, determining that the first movement grade is a second grade.

Optionally, the second judging module is further configured to:

based on an accelerometer and a gyroscope mounted on the patient, first measurement information and second measurement information are acquired, respectively.

Optionally, the third judging module is specifically configured to:

determining that the movement behavior of the patient has hidden danger if the first movement level is the first level and the second movement level is greater than a first threshold;

determining that the movement behavior of the patient has hidden danger if the first movement level is the first level and the third movement level is greater than a second threshold;

and determining that the movement behavior of the patient has hidden danger under the condition that the first movement level is a second level and the second movement level is larger than the first threshold value and the third movement level is larger than the second threshold value.

Those of ordinary skill in the art will appreciate that all or a portion of the steps carried out in the method of the above-described embodiments may be implemented by a program to instruct related hardware, where the program may be stored in a computer readable storage medium, and where the program, when executed, includes one or a combination of the steps of the method embodiments.

Furthermore, each functional unit in the embodiments of the present disclosure may be integrated in one processing module, or each unit may exist alone physically, or two or more units may be integrated in one module. The integrated modules may be implemented in hardware or in software functional modules. The integrated modules may also be stored in a computer readable storage medium if implemented in the form of software functional modules and sold or used as a stand-alone product.

The above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, or the like. Although embodiments of the present disclosure have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the present disclosure, and that variations, modifications, alternatives, and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the present disclosure.

Claims

1. A method for monitoring patient movement behavior during magnetic resonance surgery, comprising:

2. The method of claim 1, wherein the plurality of monitoring devices worn by the patient comprises at least:

electrocardiographic electrodes worn on the chest of a patient:

3. The method of claim 1, wherein said determining a corresponding first movement level of the patient based on each of the vital sign information and the corresponding reference information comprises:

4. The method of claim 1, further comprising, prior to said determining a third level of movement corresponding to said patient based on measurement information measured by an inertial sensor mounted on said patient:

5. The method of claim 3, wherein said determining whether the patient's movement behavior has a risk based on the first movement level, the second movement level, and the third movement level comprises:

6. An apparatus for monitoring patient movement behavior during magnetic resonance surgery, comprising:

7. The apparatus of claim 6, wherein the plurality of monitoring devices worn by the patient comprises at least:

electrocardiographic electrodes worn on the chest of a patient:

8. The apparatus of claim 6, wherein the first acquisition module is specifically configured to:

9. The method of claim 1, wherein the second determining module is further configured to:

10. The apparatus of claim 8, wherein the third judging module is specifically configured to: