WO2023071229A1

WO2023071229A1 - Breathing training method and system before medical imaging examination and use method

Info

Publication number: WO2023071229A1
Application number: PCT/CN2022/099324
Authority: WO
Inventors: 冯衍秋; 张益哲; 张文燕; 程希元; 马建华
Original assignee: 南方医科大学
Priority date: 2021-10-29
Filing date: 2022-06-17
Publication date: 2023-05-04
Also published as: CN113996029A; CN113996029B

Abstract

Disclosed in the present invention are a breathing training method and system before medical imaging examination and a use method. The method comprises steps: obtaining personal information of a subject; generating a first action instruction according to the personal information, and when touch information is obtained, calculating a first action duration until the touch information cannot be obtained; generating a second action instruction according to the first action duration, and if a second action is effective, saving a second action duration for which the subject executes the second action; generating a third action instruction according to the second action duration, when feedback information is obtained, adjusting a third action instruction according to the feedback information, and if the third action is effective, saving a third action duration for which the subject executes the third action; and generating a training report according to the first action duration, the first action instruction, the second action duration, the second action instruction, the third action duration, the third action instruction, and the personal information. The present invention can provide breathing self-training for the subject.

Description

Breathing training method, system and application method before medical imaging examination

technical field

The invention belongs to the technical field of medical image examination, and in particular relates to a breathing training method, system and application method before medical image examination.

Background technique

Medical imaging examinations, such as CT and MRI (magnetic resonance imaging), can obtain images of internal organs and tissues of the human body in a non-invasive manner, and play a pivotal role in the diagnosis and treatment of various diseases. In medical imaging examinations, especially MRI with a long imaging time, chest and abdomen examinations are seriously interfered by respiratory movement, resulting in imaging quality that cannot meet diagnostic requirements. In order to reduce the interference of respiratory movement, the patient's breathing cooperation is required in the chest and abdomen imaging examination. In order to reduce the interference of motion artifacts, the usual method is breath-hold acquisition, which usually requires the subject to hold his breath for about 10 to 20 seconds, and it is often difficult for patients to cooperate. If the examination requires multiple breath-holds, it is difficult to ensure that the positions of multiple breath-holds are consistent, resulting in Images are still disturbed by motion artifacts. Another solution is to use gated acquisition under free breathing, which can reduce motion interference, but depends on the regularity of the patient's spontaneous breathing. In fact, it is difficult for the subject to maintain the same regular breathing during the entire imaging examination process; in addition, The time window available for collection is limited, which significantly increases data collection time and reduces equipment usage efficiency. Respiratory training for patients before the examination can effectively improve the compliance in the imaging examination, which not only helps to reduce the probability of respiratory artifacts in breath-hold acquisition, but also helps to improve the efficiency of respiratory gating acquisition. At present, breathing training still relies on medical technicians to conduct verbal training on subjects before imaging examinations, which takes up a lot of human resources in clinical promotion and application. In addition, imaging technicians are very busy, and the training effect is often unsatisfactory, resulting in image Severe respiratory motion artifacts appeared in the images, and a diagnostic report could not be issued based on the images.

Chinese Patent Publication No. CN206063142U, published on April 5, 2017, the name of the invention is a magnetic resonance compatible breathing training and self-adjusting device and its use method. This device can only be used in the magnetic resonance scanning room and cannot be used for image inspection. The previous breathing training, and the structure is complex, it is difficult to popularize and apply. Chinese Patent Publication No. CN202961721U, the publication date is April 5, 2017. The name of the invention is a portable uniform breathing training and breath-holding time testing instrument. This device separates the existing respiratory gating system in the magnetic resonance equipment. For breathing training, only simple uniform breathing and breath-holding training can be carried out, and the optimal breathing plan cannot be designed according to the individual information of the subject, nor can the breathing training under the breathing command be realized, so it is difficult to popularize and apply. Chinese Patent Publication No. CN112516541A, the publication date is March 19, 2021. The name of the invention is an auxiliary training system for MR and CT examinations. In the technical solution of the invention, the trainee needs to breathe the simulated breathing passage Inhale and exhale, judge whether the breath is qualified by measuring the respiratory airflow data, it is inconvenient to use, and there is a risk of cross-infection between patients. Chinese Patent Publication No. CN113017600A, the publication date is June 25, 2021. The name of the invention is a training and evaluation system and method for medical imaging examination. The technical solution of this invention cannot be optimized according to the individual information of the subject Breathing scheme design, high hardware cost, inconvenient use, difficult to popularize and apply.

Contents of the invention

In order to overcome the above-mentioned technical defects, the present invention provides a breathing training method, system and application method before medical imaging examination, which can provide subjects with autonomous training of breathing before medical imaging examination.

In order to solve the above problems, the present invention adopts the following solutions to realize:

A breathing training method before medical imaging examination, comprising the steps of:

Obtain the personal information of the subject;

generating a first action command based on the personal information, and when the touch information is acquired, calculating the duration of the first action until the touch information cannot be acquired;

generating a second action command according to the first action duration, and adjusting the second action command according to the feedback information when the feedback information is obtained, and saving the second action duration for the subject to perform the second action if the second action is valid;

generating a third action command according to the second action duration, and adjusting the third action command according to the feedback information when the feedback information is obtained, and saving the third action duration for the subject to perform the third action if the third action is valid;

With the first action duration, the first action instruction, the second action duration, the second action instruction, the third action duration, the third action instruction, the personal information Generate a training report.

As a further improvement of the present application, after the step of obtaining the personal information of the subject, the following steps are also included:

Play multimedia data according to the personal information.

As a further improvement of the application, the present invention also includes the following steps:

A motion time curve is generated according to the second motion and the third motion, and the second motion duration and the third motion duration are obtained from the motion time curve.

As a further improvement of the present application, the first action instruction includes: an audio instruction and a display graphic instruction, the second action instruction includes: an audio instruction and a display graphic instruction; the third action instruction includes: an audio instruction and a display graphic instruction instruction.

Push the training report to the account of the equipment operator;

The training report is transmitted to a cloud database.

As a further improvement of the present application, in the step of generating the first action instruction based on personal information, and calculating the duration of the first action until the touch information cannot be acquired when the touch information is obtained, the first action is generated multiple times command and obtain the duration of the first action multiple times, and calculate and save the average value of the duration of the first action;

In the step of generating the second action instruction according to the first action duration, and saving the second action duration for the subject to perform the second action if the second action is valid, the second action instruction is generated multiple times and the second action command is acquired multiple times. Action duration, calculate and save the average value of the second action duration;

In the step of generating the third action command according to the second action duration, adjusting the third action command according to the feedback information when the feedback information is obtained, and saving the third action duration time for the subject to perform the third action, generate multiple times The third motion instruction and the third motion duration are obtained multiple times, and the average value of the third motion duration is calculated and saved.

In addition, the present invention also provides a breathing training system before medical image examination, including: a mobile terminal, the mobile terminal includes: a processor and a memory, at least one instruction, at least one program, a code set or Instruction set, the at least one instruction, at least one section of program, code set or instruction set is loaded and executed by the processor to implement the breathing training method before medical image examination as described above.

As a further improvement of the present application, the present invention further includes: a detection device, which is connected to the processor through a network, and used to detect the second action and the third action made by the subject.

As a further improvement of the present application, the detection device includes:

abdominal elastic band;

A sensor component, arranged in the abdominal elastic band, is used to detect the second movement and the third movement;

The communication module is connected with the sensor component and the processor, and is used to obtain the second action signal and the third action signal and transmit them to the processor.

The present invention also provides a method for using the breathing training system before medical imaging examination, which is applied to the above breathing training system before medical imaging examination, comprising the steps of:

The subject enters personal information;

The subject performs the first action while pressing the mobile terminal according to the first action instruction, the mobile terminal records the duration of the first action, and after repeating the first action several times, the mobile terminal calculates the average value of the duration of the first action;

The subject makes a second action according to the second action instruction, the mobile terminal records the duration of the second action, and after repeating the second action several times, the mobile terminal calculates the average value of the second action duration;

The subject performs the third action according to the third action command, if the subject cannot complete the third action command, fill in the feedback information on the mobile terminal, after the mobile terminal readjusts the third action command, the subject performs the third action command The action command repeats the third action several times, and the mobile terminal calculates the average value of the duration of the third action.

Description of drawings

Below in conjunction with accompanying drawing, specific embodiment of the present invention is described in further detail, wherein:

Fig. 1 is the flowchart of the breathing training method before the medical imaging examination described in embodiment 1;

Fig. 2 is the structural representation of the breathing training system before the medical imaging examination described in embodiment 2;

Fig. 3 is the interface diagram of the mobile terminal described in embodiment 2;

Fig. 4 is another interface diagram of the mobile terminal described in Embodiment 2;

FIG. 5 is a flow chart of the method for using the breathing training system before the medical imaging examination described in Embodiment 2.

Detailed ways

The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

Example 1

This embodiment provides a breathing training method before a medical imaging examination, as shown in Figure 1, comprising steps:

S1. Obtain the personal information of the subject, including: gender, age, weight, height, contact information, type of imaging examination, etc. According to the personal information, play the corresponding multimedia materials to conduct pre-examination education. The multimedia materials include the main process of image inspection, precautions, possible noises during the inspection process, and methods to deal with tension and anxiety. Then explain the meaning of breathing and breath-holding that requires the subject to cooperate in the image examination, and the purpose of breathing training. In addition, it can also play the case of scanning environmental noise to inform the subject of the safety factor, which helps to eliminate the subject's nervousness. Improve the cooperation of imaging examinations and reduce the possibility of doctor-patient conflicts. For the examinee who is not the first user and has completed the learning of multimedia materials, the above playing steps can be skipped under the examinee's choice.

S2. Generate a breath-holding ability test instruction according to the personal information. When the touch information is obtained, calculate the breath-holding ability test time until the touch information cannot be obtained.

Specifically, the breath-holding ability test instructions include: audio instructions and display graphic instructions, playing audio instructions helps to prompt the examinee, graphic instructions can visually see the test situation, and breath-hold ability test instructions are displayed on the display screen. The detection of the breath-holding action can be realized through the touch area, that is, the subject presses the touch area and performs a breath-holding action at the same time. When the subject stops making the breath-holding action, he no longer touches the touch area. time.

In order to obtain a more accurate breath-holding action duration, when the subject completes a breath-holding action, the breath-holding ability test command can be generated multiple times, so that the subject can perform the breath-holding action multiple times, and obtain the duration of multiple breath-holding actions in turn, according to Multiple breath-hold action durations, calculate the average value of the breath-hold action duration, and save the average value as the subject's training data.

S3. Generate a single breath-hold training instruction according to the breath-hold action time. When the subject executes a single breath-hold training instruction, calculate the duration of the single breath-hold action. If the single breath-hold training is effective, save the subject to make a single breath-hold training instruction. The duration of a single breath-hold during breath-hold training.

Single breath-hold training instructions include: audio instructions and display graphics instructions. The audio instructions can be the following voice information: Please follow the voice to perform corresponding actions. The display graphics instructions can include: single-breath-hold action curves, single-breath-hold action countdown graphics, based on Therefore, it is possible to assist the subject to perform the test.

Whether a single breath-hold action is effective can be judged by the following methods:

1. The subject judges the effectiveness of a single breath-hold action through self-feeling, such as: the subject puts one hand on the abdomen during the training process to feel the movement of the abdomen during the breathing process, and judges the abdominal movement during the breath-holding process by himself. No slight movement to judge the effectiveness of the breath-hold;

2. A single breath-hold movement is detected by binding an abdominal elastic band on the subject's abdomen. Sensors are installed in the abdominal elastic band to check the movement, and finally a movement time curve of a single breath-hold movement is generated. Through the movement time curve, the satisfaction is obtained. The required duration of a single breath-hold.

In order to obtain a more accurate single breath-hold action duration, it is also possible to generate a single breath-hold training command multiple times, obtain multiple single breath-hold action durations, and use the average value of multiple single breath-hold action durations as the subject's The training data is saved.

S4. Generate multiple consecutive breath-hold commands according to the duration of the breath-hold action, and adjust the multiple consecutive breath-hold commands according to the feedback information when the feedback information is obtained. If the multiple consecutive breath-hold actions are valid, save the duration of the multiple consecutive breath-hold actions;

If the subject cannot complete multiple breath-holds, he can fill in the feedback information and re-adjust the continuous multiple breath-hold instructions, such as adding a "pinch nose" prompt on the basis of the original multiple breath-hold instructions.

Multiple consecutive breath-hold instructions include: audio instructions and display graphics instructions. The audio instructions can be the following voice information: Please follow the voice to perform corresponding actions. The display graphics instructions can include: multiple consecutive breath-hold action curves, and continuous multiple breath-hold action countdowns.

Please refer to step S3 for the method of whether multiple consecutive breath-hold actions are valid.

In order to obtain a more accurate duration of multiple consecutive breath-holding actions, multiple consecutive multiple-time breath-holding training instructions can also be generated multiple times to obtain the duration of multiple consecutive multiple breath-holding actions, and the average value of multiple consecutive multiple breath-holding action durations can be used as The subject's training data is saved.

S5. Generate a training report based on the first action duration, the first action instruction, the second action duration, the second action instruction, the third action duration, the third action instruction, and personal information.

S6. Push the training report to the account of the equipment operator, and transmit the training report to the cloud database.

The subject can realize the autonomous training of breathing before the medical imaging examination, without relying on the imaging operator, the effectiveness of the training is high, and it is easy to popularize and apply.

Example 2

This embodiment provides a breathing training system before medical image examination, including: a mobile terminal, the mobile terminal includes: a processor and a memory, at least one instruction, at least one program, code set or instruction set are stored in the memory, at least One instruction, at least one section of program, code set or instruction set is loaded and executed by the processor to implement the breathing training method before medical image examination in Embodiment 1.

Specifically, as shown in Figures 2 to 4, the mobile terminal can be a mobile phone or a tablet computer, and the mobile phone and the tablet computer are equipped with a touch screen, a display and a speaker; the display is used to play multimedia data, and the action instructions are all displayed on the display. The subject provides visual interaction. There is a touch area on the touch screen. When the subject presses the touch area, he makes a breath-holding action. When the subject stops making the breath-holding action, he no longer touches the touch area. At this time, the mobile terminal The duration of the breath-holding action can then be calculated according to the touch signal.

Further, this embodiment further includes: a detection device, which is connected to the processor through a network, and is used to detect the second action and the third action made by the subject.

The detection device includes: an abdominal elastic band, a sensor component and a communication module; the sensor component is arranged in the abdominal elastic band for detecting the second movement and the third movement; the communication module is connected with the sensor component and the processor, It is used to obtain the second action signal and the third action signal and transmit them to the processor.

Example 3

This embodiment provides a method for using a breathing training system before a medical imaging examination, as shown in FIG. 5 , applied to the breathing training system before a medical imaging examination in Example 2, including steps:

Preparatory steps: The subject wears a detection device. If no detection device is equipped, this step can be omitted.

Information registration steps: the subject enters personal information through the mobile terminal; personal information includes: gender, age, weight, height, contact information, type of imaging examination, etc. The mobile terminal plays the corresponding multimedia materials based on personal information for pre-examination education, including the main process of image inspection, precautions, possible noises during the inspection process, and methods to deal with tension and anxiety. Then explain the significance of the subject's cooperation in breathing and breath-holding in the imaging examination, and the purpose of breathing training. For the examinee who is not the first user and has completed the learning of multimedia materials, he can choose to skip the above playing steps.

Breath-holding ability test steps: The subject takes a deep inhalation and exhalation according to the breath-holding ability test instructions, and then starts the breath-holding action (it can also repeat two to three deep breaths and then hold the breath), and presses the touch area at the same time, and the test is completed at the end of the breath-holding ability When the subject cannot hold his breath, the finger leaves the touch area, and the duration of the breath-hold action is calculated by using the contact time of the touch screen, or the detection device acquires the time curve when the subject starts the breath-hold action, and the time curve is displayed synchronously on the display screen, and the breath-hold action is taken. The plateau period during the final breath-holding period was used as the duration of the breath-holding action. The mobile terminal recorded the duration of the breath-holding action. After repeating the above actions several times, the mobile terminal calculated the average value of the duration of the breath-holding action; For reviewers, you can choose to skip the above playback steps.

Single breath-hold training steps: The subject follows the single-breath-hold training instructions, which include: inhalation time, exhalation time, and breath-hold time. When the subject starts the breath-hold action, the audio command can be played through the mobile terminal Or display graphic instructions to provide assistance to the subject, and the subject continues to start the breath-holding action. If the breath-holding action is valid, save the duration of a single breath-holding training. After repeating the above actions several times, the mobile terminal calculates the duration of a single breath-holding training average of.

During the training process, the subject puts one hand on the abdomen to feel the movement of the abdomen during the breathing process, and judges the effectiveness of the breath-hold by judging whether there is slight movement of the abdomen during the breath-holding process, until the subject can stabilize in a more comfortable state Realize the breath-hold that satisfies the image inspection. Perform multiple acquisitions, exclude outliers, record the average value of the effective single breath-hold training duration and save it as the final training result. If the final training result cannot meet the requirements of image inspection, the record will also be stored. If equipped with a detection device, the display screen can be used to display the respiratory movement time curve, and the plateau period of the end-expiration breath-hold time that meets the requirements can be taken as the effective breath-hold time.

Continuous multiple breath-hold training steps: The subject follows the continuous multiple breath-hold training instructions. A single breath-hold training instruction includes: inhalation time, exhalation time, and breath-hold time. The subject starts to connect the breath-hold action and can play audio through the mobile terminal Instructions or graphic instructions are displayed to provide assistance for the examinee. The examinee gives feedback on the action situation according to the actual situation, and the mobile terminal readjusts the breath-hold training instructions for several times in a row according to the feedback action situation (if the examinee feedback cannot be completed, you can use the original On the basis of the multiple consecutive breath-holding training instructions, add the nose-pinching instruction), the subject continues to start multiple consecutive breath-holding actions, if the continuous multiple breath-holding actions are effective, save the continuous multiple breath-holding training duration, and repeat the above actions several times Afterwards, the mobile terminal calculates the average value of the continuous breath-hold training duration for multiple times.

During the training process, the subject puts one hand on the abdomen to feel the movement of the abdomen during the breathing process, and judges the effectiveness of the breath-hold by judging whether there is slight movement of the abdomen during the breath-holding process, until the subject can stabilize in a more comfortable state Realize the breath-hold that satisfies the image inspection. Perform multiple acquisitions, exclude outliers, record the average value of the effective multiple breath-hold training durations and save them as the final training results. If the final training results cannot meet the requirements of image inspection, the records will also be stored. If equipped with a detection device, the display screen can be used to display the respiratory movement time curve, and the plateau period of the end-expiration breath-hold time that meets the requirements can be taken as the effective breath-hold time.

Finally, the mobile terminal device transmits the above test data and test conditions to the cloud database, and feeds back the test data and test conditions to the imaging equipment operator.

Comprehensive embodiment 1～embodiment 3, the present invention has following technical effect:

1. Through the training and evaluation of the subject's breath-holding ability and breathing regularity, the optimal respiratory motion correction scheme in the scan can be determined in advance.

2. Through the training of the subject's breath-holding ability and breathing, it is possible to achieve a good coordination of the patient's breathing under automatic instructions, which helps to avoid the occurrence of respiratory motion artifacts in medical imaging examinations, and helps to improve the imaging quality and The accuracy rate makes possible high-resolution quantitative imaging that takes a long time and requires high requirements, and significantly improves the efficiency of imaging inspections.

3. By cooperating with the system's automatic breathing command, it is no longer necessary for the operator to manually give breathing commands during the scanning process, which is helpful for the realization of one-button scanning in chest and abdomen imaging examinations.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any form. Therefore, any modification, Equivalent changes and modifications all still belong to the scope of the technical solutions of the present invention.

Claims

A breathing training method before medical imaging examination, characterized in that it comprises the steps of:

Obtain the personal information of the subject;

generating a first action command based on the personal information, and when the touch information is acquired, calculating the duration of the first action until the touch information cannot be acquired;

generating a second action command according to the first action duration, and saving the second action duration for the subject to perform the second action if the second action is valid;

generating a third action command according to the second action duration, and adjusting the third action command according to the feedback information when the feedback information is obtained, and saving the third action duration for the subject to perform the third action if the third action is valid;

With the first action duration, the first action instruction, the second action duration, the second action instruction, the third action duration, the third action instruction, the personal information Generate a training report.
The breathing training method before medical image examination according to claim 1, further comprising the following steps after the step of obtaining the personal information of the subject:

Play multimedia data according to the personal information.
The breathing training method before medical imaging examination according to claim 1, further comprising the steps of:

A motion time curve is generated according to the second motion and the third motion, and the second motion duration and the third motion duration are obtained from the motion time curve.
The breathing training method before medical image examination according to claim 1, wherein the first action instruction includes: an audio instruction and a display graphic instruction, and the second action instruction includes: an audio instruction and a display graphic instruction; The third action instruction includes: an audio instruction and a graphic display instruction.
The breathing training method before medical imaging examination according to claim 1, further comprising the steps of:

Push the training report to the account of the equipment operator;

The training report is transmitted to a cloud database.
The breathing training method before medical image examination according to claim 1, wherein the first action instruction is generated based on the personal information, and when the touch information is acquired, the duration of the first action is calculated until the touch information cannot be acquired. In the step of touching information, generating the first action instruction multiple times and acquiring the first action duration multiple times, calculating and saving the average value of the first action duration;

In the step of generating the second action instruction according to the first action duration, and saving the second action duration for the subject to perform the second action if the second action is valid, the second action instruction is generated multiple times and the second action command is acquired multiple times. Action duration, calculate and save the average value of the second action duration;

In the step of generating the third action command according to the second action duration, adjusting the third action command according to the feedback information when the feedback information is obtained, and saving the third action duration time for the subject to perform the third action, generate multiple times The third motion instruction and the third motion duration are obtained multiple times, and the average value of the third motion duration is calculated and saved.
A breathing training system before medical image examination, characterized in that it includes: a mobile terminal, the mobile terminal includes: a processor and a memory, at least one instruction, at least one program, a code set or an instruction set are stored in the memory, The at least one instruction, at least one section of program, code set or instruction set is loaded and executed by the processor to implement the breathing training method before medical image examination according to any one of claims 1 to 6.
The breathing training system before medical image examination according to claim 7, further comprising: a detection device, which is connected to the processor through a network, and used to detect the second action, the third action, and the third action made by the subject. action.
The breathing training system before medical image examination according to claim 8, wherein the detection device comprises:

abdominal elastic band;

A sensor component, arranged in the abdominal elastic band, is used to detect the second movement and the third movement;

The communication module is connected with the sensor component and the processor, and is used to obtain the second action signal and the third action signal and transmit them to the processor.
A method for using a breathing training system before a medical imaging examination, characterized in that it is applied to the breathing training system before a medical imaging examination according to any one of claims 8 to 9, comprising the steps of:

The subject enters personal information;

The subject performs the first action while pressing the mobile terminal according to the first action instruction, the mobile terminal records the duration of the first action, and after repeating the first action several times, the mobile terminal calculates the average value of the duration of the first action;

The subject makes a second action according to the second action instruction, the mobile terminal records the duration of the second action, and after repeating the second action several times, the mobile terminal calculates the average value of the second action duration;

The subject performs the third action according to the third action command, if the subject cannot complete the third action command, fill in the feedback information on the mobile terminal, after the mobile terminal readjusts the third action command, the subject performs the third action command The action command repeats the third action several times, and the mobile terminal calculates the average value of the duration of the third action.