CN114699064A - Breath holding assisting method for cardiac magnetic resonance examination - Google Patents
Breath holding assisting method for cardiac magnetic resonance examination Download PDFInfo
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- CN114699064A CN114699064A CN202210338999.5A CN202210338999A CN114699064A CN 114699064 A CN114699064 A CN 114699064A CN 202210338999 A CN202210338999 A CN 202210338999A CN 114699064 A CN114699064 A CN 114699064A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
- A61B5/055—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/70—Means for positioning the patient in relation to the detecting, measuring or recording means
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/70—Means for positioning the patient in relation to the detecting, measuring or recording means
- A61B5/702—Posture restraints
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Abstract
The invention discloses a breath holding assisting method for cardiac magnetic resonance examination, and relates to the technical field of medical treatment. The invention comprises the following steps: s1, winding a binding belt on the thorax part of the subject; s2, sensing the respiratory motion state of the detected person; and S3, tightening the binding belt when the respiratory motion state of the detected person is sensed to be in a breath-holding state. The invention provides stress points of the thoracic part for a detected person, can assist the detected person to stabilize the state of the thoracic, ensures that the tissue condition in the thoracic cavity is kept stable in the magnetic resonance detection process, and is convenient for magnetic resonance detection.
Description
Technical Field
The invention belongs to the technical field of medical treatment, and particularly relates to a breath-holding assisting method for cardiac magnetic resonance examination.
Background
Cardiovascular diseases are one of the important diseases which endanger human health due to the fact that the morbidity and mortality of the cardiovascular diseases are high and the onset age of the cardiovascular diseases tends to be younger. The cardiac magnetic resonance is non-invasive, has higher spatial resolution and soft tissue contrast, and has the advantages of multi-aspect and multi-parameter imaging technology, and plays an important role in early diagnosis, differential diagnosis, treatment guidance and prognosis evaluation of cardiovascular diseases.
However, during the acquisition of the cardiac magnetic resonance examination image, the subject needs to hold his breath, so that the position of the thoracic cavity or the tissue structure in the thorax does not change due to breathing or generate respiratory motion artifacts. Therefore, whether the breath-hold movement of the subject during the examination meets the relative standard or not can affect the success rate of the examination of the cardiac magnetic resonance. When the examinee holds breath, the examinee can easily start breathing inadvertently, or the examinee holds breath and does not know the breath lightly; this condition affects the success rate of cardiac magnetic resonance examinations. The examinee needs to be checked again after the examination fails, and the repeated failures can cause psychological stress to the examinee, so that the examinee is irritated and nervous in psychology and physiology, and the examination is more difficult.
Disclosure of Invention
The invention aims to provide a breath-holding assisting method for cardiac magnetic resonance examination, which is characterized in that a binding belt is wound outside the thorax of a person to be examined to provide stress points for the thorax of the person to be examined, so that the person to be examined can tightly support the binding belt by the thorax in the examination process, the fluctuation state of the thorax can be kept unchanged during the examination, the position of tissues in the thorax can be kept unchanged, and the success rate of the examination is increased.
In order to solve the technical problems, the invention is realized by the following technical scheme:
a breath-hold assistance method for cardiac magnetic resonance examination, comprising the steps of:
s1, winding a binding belt on the thorax part of the subject;
s2, sensing the respiratory motion state of the subject;
and S3, tightening the binding belt when the respiratory motion state of the detected person is sensed to be in a breath-holding state.
The binding belt is wound around the thorax part of the examinee in order to provide a force bearing point around the thorax to the thorax part of the examinee, so that the examinee can hold the binding belt by the thorax when holding breath, and when the examinee holds the binding belt by the thorax, the thorax and tissues in the thorax of the examinee can keep a stable position for magnetic resonance examination.
Preferably, an inflation cavity is arranged in the constraint belt, an inflation port is arranged on the inflation cavity, and the inflation port is connected with an air pump.
The tightening of the restraining strip in the step S3 is controlled by a controller, and the controller is electrically connected to the air pump and is used for controlling the start and the stop of the air pump. In the steps S2 and S3, a sensor is used to perform a sensing check on the respiratory movement state of the subject, and a signal output end of the sensor is electrically connected to a signal receiving end of the controller.
In step S3, the tightening of the restraining band is performed by inflating the inflatable chamber. That is to say, when the inductor senses that the person to be examined is in the breath-holding state, the controller inflates the inflation cavity, so that the inflation cavity expands, and the effect of tightening the constraint belt is achieved. After the binding belt is tightened, the person to be detected can obviously feel the force of the binding belt on the self thorax, so that the person to be detected can concentrate on the attention to tightly support the binding belt by the thorax.
Preferably, the breathing monitoring device further comprises a display, the signal output end of the sensor is also electrically connected with the display, and the breathing motion state sensed by the sensor is displayed through the display. The respiratory motion sensed by the sensor is displayed in the form of a wave-like graph, for example.
The breath-hold assisting method comprises a training-time assisting method and an examination-time assisting method, wherein the training-time assisting method is used for training the breath-hold of the examinee before the magnetic resonance examination, the examination-time assisting method is used for assisting the breath-hold in the magnetic resonance examination process, and the training-time assisting method further comprises the step S4 of relaxing the restraint strap when the breath of the examinee is sensed again.
In the step S4, the manner of releasing the restraining strip is to vent the air filled in the inflation cavity.
The air pump is connected with the air pump through an air charging pipeline, an electric control valve is arranged on the air charging pipeline, the air in the air charging cavity is discharged through the control of the electric control valve, and the signal output end of the controller is electrically connected with the electric control valve.
Still include voice prompt, voice prompt is sent by the speaker, the signal output part of controller with the speaker electricity is connected.
The invention has the following beneficial effects:
the invention provides stress points of the thoracic part for a detected person, can assist the detected person to stabilize the state of the thoracic, ensures that the tissue condition in the thoracic cavity is kept stable in the magnetic resonance detection process, and is convenient for magnetic resonance detection.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without inventive labor.
FIG. 1 is a system connection diagram of the present invention;
FIG. 2 is a schematic view of the restraint strap of the present invention in an end-to-end connected, uninflated state;
fig. 3 is a schematic view of the restraining strip of the present invention in an end-to-end connected inflated state.
In the drawings, the components represented by the respective reference numerals are listed below:
1. the binding belt comprises a binding belt body 2, an air pump 3, a loudspeaker 4, a controller 5, a sensor 6, a display 7, a magic tape 8, an inflation pipeline 9 and an inflation cavity.
Detailed Description
The technical solution of the present invention is clearly and completely described below with reference to the accompanying drawings by means of specific implementation manners of embodiments of the present invention.
Referring to fig. 1-3, the present invention is a breath-hold assisting method for cardiac magnetic resonance examination, comprising the following steps:
s1, winding a binding belt 1 on the thorax part of the examinee;
s2, sensing the respiratory motion state of the subject;
and S3, tightening the restraint strap 1 when the respiratory motion state of the detected person is sensed to be in a breath-holding state.
The breath-hold assisting method includes a training-time assisting method and a checking-time assisting method, each of which includes the steps S1, S2, and S3.
And the training-time assisting method further includes step S4,
and S4, when the breath of the detected person is sensed again, the restraint belt 1 is loosened.
An inflation cavity 9 is arranged in the restraining belt 1, an inflation port communicated with the inflation cavity 9 is arranged on the restraining belt 1, the inflation port is connected with an air pump 2, the manner of tightening the restraining belt 1 in the step S3 is to inflate the inflation cavity 9, and the restraining belt 1 is tightened by expanding the inflation cavity 9.
In step S2, the device for sensing the respiratory state of the subject is a sensor 5, the sensor 5 is a sensor, and the sensor is a respiratory rate sensor. The respiratory frequency sensor is arranged on the inner side of the binding belt 1 and is attached to the thorax of a human body, and when a detected person breathes, the fluctuation of the thorax can generate different pressures on the respiratory frequency sensor, so that different piezoelectric signals are generated, and the respiratory frequency is reflected by the piezoelectric signals. When the piezoelectric signal is unchanged, the detected person is in a breath-holding state. When the respiratory rate sensor is used, the inductive probe of the respiratory rate sensor needs to be arranged on the right side of the thoracic cavity, so that the inductive probe is prevented from influencing the examination of the heart part on the left side of the thoracic cavity by the magnetic resonance examination in the examination process.
The sensor can also adopt a flow sensor, and the breathing motion state is checked by checking the flow of the breathing airflow. When the flow sensor detects that the airflow exists, it indicates that the examinee does not hold his breath, and if the data obtained by the flow sensor is 0, it indicates that the examinee is in a breath holding state. The advantage of using the flow sensor to check the respiratory state of the subject is that the flow sensor does not contact the chest part, i.e. does not form a barrier at the chest position, and does not affect the accuracy of the magnetic resonance check.
In the specific implementation process, the detected person can wear a mask provided with a flow sensor, and when the detected person breathes, airflow generated by breathing necessarily passes through the flow sensor, so that the breathing movement of the detected person is checked.
In step S2, the sensed respiratory motion state is displayed on the display 6, and the sensor is electrically connected to the display 6. The sensor transmits the sensed signal to the display 6 and is shown in the form of a wave pattern by the display 6.
The two ends of the binding belt 1 are provided with magic tapes 7 which are connected end to end through the magic tapes 7. Because the bonding position of the magic tape 7 has the characteristic of unfixed, when the binding tape faces different thorax sizes of the examinees, the binding tape 1 can be wound on the thorax and cannot be too loose or too tight, so that the binding tape 1 can be flexibly suitable for the examinees with different body types.
The inflatable cavity 9 is positioned in the middle of the restraining belt 1, and when the restraining belt 1 is wound around the thorax of the person to be detected, the inflatable cavity 9 is positioned in front of the thorax. The inflation cavity 9 is positioned in front of the thorax, and a bulged inflation part is not formed at the back after inflation, so that the lying of a person to be examined is not influenced.
In the step S3, the tightening of the restraining band 1 is controlled by the controller 4, the controller 4 is electrically connected to the air pump 2 for inflating the inflation cavity 9, the signal output end of the sensor 5 is connected to the signal receiving end of the controller 4, when the sensor 5 senses that the subject holds his breath, a corresponding electrical signal is sent to the controller 4, and the controller 4 starts the air pump 2 to inflate the inflation cavity 9. Thereby expanding the inflation cavity 9 and playing a role in tightening the restraining strap 1.
As a preferred embodiment, a pressure regulating valve may be provided on the inflation conduit 8 between the air pump 2 and the inflation cavity 9, so that the pressure at different gears can be regulated according to different subjects. For example, for elderly people or children, the inflation pressure is adjusted to be low.
When the breath holding training is carried out, the examinee needs to be trained for a plurality of times, the pressure in the inflatable cavity 9 in the training process can be adjusted through the pressure regulating valve, the breath holding training data of the examinee under different pressures are collected, for example, the data of the duration of breath holding is collected, and medical staff can select the proper pressure of the inflatable cavity 9 for the examinee according to the collected data. During the examination, the inflatable cavity 9 at the thorax part of the examinee is pressurized at the most suitable pressure during the training process, so that the examinee can perform breath-hold examination at the most suitable pressure.
During training and formal examinations, the data detected by the sensor 4 are displayed in the form of a wave-shaped graph through the display 6, and the pressure control range is displayed on the wave-shaped graph, namely the respiratory state limit range of the examinee, namely the peak value of the wave-shaped graph does not exceed the pressure control range in the breath holding state. Under the condition that the wavy diagram and the pressure control range can be directly observed, the testee can actively adjust the breath-holding state of the testee, so that the breath-holding effect is better.
According to the requirement of the examination, the wave-shaped graph of the testee in the breath-holding state should be close to a straight line, and the wave-shaped graph displayed on the display 6 is also used as a judgment basis for the breath-holding training effect of the testee. When the wavy diagram of the examinee in the breath holding state is close to a straight line in the training process, and the breath holding time duration meets the examination time duration, the training effect of the examinee meets the examination requirement, and the examination can be started.
In said step S4, the loosening of the strap 1 is to vent the air in the inflation chamber 9.
In the training process of the method, when the sensor 5 senses that the examined person starts to breathe, namely the sensor 5 senses that the thorax of the examined person fluctuates or senses that the respiratory flow of the examined person is no longer 0, the pressure of the inflating cavity 9 is automatically relieved, and the gas in the inflating cavity 9 is discharged. By adopting the mode, the signal of the failure of breath holding of the examinee can be intuitively prompted, so that the training can give obvious feedback to the examinee, and the examinee can be prompted to learn how to match with the supporting point of the full-breast contour given by the binding belt 1 to achieve a better breath holding effect. Compared with the common breath holding training, the breath holding training of the invention can focus the attention of the examinee on the binding belt 1 in contact with the thorax, so as to promote the examinee to focus the attention and tighten the binding belt 1, and the breath holding training is simpler when the examinee focuses on the binding belt 1.
In the actual examination process, when the sensor 5 senses that the subject starts to breathe, that is, the sensor 5 senses that the thorax of the subject fluctuates or senses that the respiratory flow of the subject is no longer 0, the controller 4 does not release the pressure of the inflation cavity 9, but maintains the stability of the inflation cavity 9 until the end of the cardiac magnetic resonance examination.
That is, the controller 4 controls the pressure relief of the air-filled cavity 9 by automatic control and manual control. When a testee is subjected to breath holding training before cardiac magnetic resonance examination, the pressure relief of the air inflation cavity 9 is under automatic control, and the controller 4 can automatically relieve the pressure of the air inflation cavity 9 according to a signal of the inductor 5. During the cardiac magnetic resonance examination, the inflation cavity 9 needs to be kept stable during the examination, so the controller 4 does not perform pressure relief on the inflation cavity 9 according to the signal of the inductor 5.
The controller 4 can control the pressure release of the inflation cavity 9 by using an electric control valve, for example, the air pump 2 inflates the inflation cavity 9, the inflation pipeline 8 is needed, and whether the inflation cavity 9 releases the pressure can be controlled by only installing an electric control valve on the inflation pipeline 8.
The utility model discloses a heart magnetic resonance examination device, including inflation chamber 9, inflation pipe 8 is connected with on the inflation inlet of inflation chamber 9, be provided with the automatically controlled valve on the inflation pipe 8, the automatically controlled valve is located the one end that inflation pipe 8 kept away from inflation chamber 9, and the purpose is that the automatically controlled valve keeps away from the inspection area when making heart magnetic resonance examination, avoids the automatically controlled valve to cause the influence to the inspection.
Still include voice prompt, voice prompt is sent by speaker 3, the signal output part of controller 4 with speaker 3 electricity is connected, reminds examinee's screen gas motion by speaker 3's voice prompt. For example, in a specific implementation, the speaker 3 emits an "inhale and breath hold" prompt voice to remind the subject to adjust the breath preparation and breath hold.
Under the action of the voice prompt, the controller 4 can control the air pump 2 by adopting a manual control method, that is, when hearing the voice prompt, medical staff operates the controller 4 to start the air pump 2 by themselves, so as to inflate the inflation cavity 9.
The voice prompt of the loudspeaker 3 is used for training, and prompts are given to the examinee in the training process. In the heart magnetic resonance examination process, the loudspeaker 3 is closed, and the voice prompt for the examinee is stopped, so that the examinee can completely carry out examination according to the voice instruction of the magnetic resonance examination equipment.
Before the method of the present invention is used, the number of examinations required for the success of the examination of the subject is 10 or more on average, whereas after the method of the present invention is used, the number of examinations required for the success of the examination of the subject is about 5 on average. The success rate of the inspection is improved by more than 50%. Meanwhile, the actual examination process of the examined person is smoother and more standard than the past due to the consistency of the breathing training, the examination success rate is doubled due to the fact that the matching degree of the examined person is increased, the time is shortened by a half, the number of the examined persons of each magnetic resonance examination device per day can be doubled, the utilization rate of the magnetic resonance examination devices is improved, and the waste of medical resources is reduced.
Claims (10)
1. A breath-hold assistance method for cardiac magnetic resonance examination, characterized by: the method comprises the following steps:
s1, winding a binding belt (1) on the thorax part of the person to be detected;
s2, sensing the respiratory motion state of the subject;
s3, tightening the binding belt (1) when the respiratory motion state of the detected person is sensed to be in the breath-holding state.
2. A breath hold assistance method for cardiac magnetic resonance examination as claimed in claim 1, wherein: an inflation cavity (9) is arranged in the constraint belt (1), an inflation inlet is arranged on the inflation cavity (9), and the inflation inlet is connected with an air pump (2).
3. A breath hold assist method for a cardiac magnetic resonance examination as recited in claim 2, wherein: the tightening of the restraining strip (1) in the step S3 is controlled by a controller (4), and the controller (4) is electrically connected with the air pump (2) and used for controlling the starting and the closing of the air pump (2).
4. A breath hold assistance method for cardiac magnetic resonance examination as claimed in claim 3, wherein: in the steps S2 and S3, a sensor (5) is used to perform a sensing check on the respiratory movement state of the subject, and a signal output end of the sensor (5) is electrically connected to a signal receiving end of the controller (4).
5. A breath hold assistance method for cardiac magnetic resonance examination as claimed in claim 2, wherein: in the step S3, the tightening of the restraining strip (1) is performed by inflating the inflatable chamber (9).
6. A breath hold assistance method for cardiac magnetic resonance examination as claimed in claim 4, wherein: still include display (6), the signal output part of inductor (5) still is connected with display (6) electricity, the breathing motion state that inductor (5) sensed is through display (6) demonstration.
7. A breath hold assistance method for a cardiac magnetic resonance examination as recited in claim 4, wherein: the breath-hold assisting method comprises a training-time assisting method and an examination-time assisting method, wherein the training-time assisting method is used for training the breath-hold of the examinee before the magnetic resonance examination, the examination-time assisting method is used for assisting the breath-hold in the magnetic resonance examination, and the training-time assisting method further comprises the step S4 of relaxing the restraint strap (1) when the breath of the examinee is sensed again.
8. A breath hold assistance method for cardiac magnetic resonance examination as recited in claim 7, further comprising: in the step S4, the manner of releasing the restraining strip (1) is to vent the air charged in the charging chamber (9).
9. A breath hold assistance method for cardiac magnetic resonance examination as recited in claim 8, further comprising: the inflation inlet of inflation chamber (9) with connect through gas piping (8) between air pump (2), be provided with the automatically controlled valve on gas piping (8), the leakage of air in inflation chamber (9) is through the automatically controlled valve control, the signal output part of controller (4) with the automatically controlled valve electricity is connected.
10. A breath hold assistance method for cardiac magnetic resonance examination as recited in claim 7, further comprising: the voice prompt is sent by a loudspeaker (3), and the signal output end of the controller (4) is electrically connected with the loudspeaker (3).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210338999.5A CN114699064A (en) | 2022-04-01 | 2022-04-01 | Breath holding assisting method for cardiac magnetic resonance examination |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210338999.5A CN114699064A (en) | 2022-04-01 | 2022-04-01 | Breath holding assisting method for cardiac magnetic resonance examination |
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Citations (7)
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| CN102871660A (en) * | 2012-10-12 | 2013-01-16 | 上海卡勒幅磁共振技术有限公司 | Method for restraining shadow of magnetic resonance imaging respiratory movement |
| CN203564507U (en) * | 2013-09-11 | 2014-04-30 | 刘晓燕 | Movable assisting breathing device used for first aid |
| CN203914918U (en) * | 2014-01-16 | 2014-11-05 | 深圳市贝斯达医疗器械有限公司 | A kind of low Abdominal MRI imaging device of monitoring of holding one's breath |
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| CN206315417U (en) * | 2016-12-23 | 2017-07-11 | 珠海乐维电子科技有限公司 | The wearing product that a abdominal respiration is applied in health training |
| CN109887370A (en) * | 2019-04-23 | 2019-06-14 | 中国人民解放军陆军军医大学第二附属医院 | A kind of helmet-type training simulation device for before magnetic resonance examination |
| CN112675500A (en) * | 2020-12-31 | 2021-04-20 | 合肥工业大学 | Breathing training device and application thereof |
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2022
- 2022-04-01 CN CN202210338999.5A patent/CN114699064A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102871660A (en) * | 2012-10-12 | 2013-01-16 | 上海卡勒幅磁共振技术有限公司 | Method for restraining shadow of magnetic resonance imaging respiratory movement |
| CN203564507U (en) * | 2013-09-11 | 2014-04-30 | 刘晓燕 | Movable assisting breathing device used for first aid |
| CN203914918U (en) * | 2014-01-16 | 2014-11-05 | 深圳市贝斯达医疗器械有限公司 | A kind of low Abdominal MRI imaging device of monitoring of holding one's breath |
| CN205286356U (en) * | 2015-12-20 | 2016-06-08 | 中国人民解放军第四军医大学 | Special respiratory regulation ware of magnetic resonance belly inspection |
| CN206315417U (en) * | 2016-12-23 | 2017-07-11 | 珠海乐维电子科技有限公司 | The wearing product that a abdominal respiration is applied in health training |
| CN109887370A (en) * | 2019-04-23 | 2019-06-14 | 中国人民解放军陆军军医大学第二附属医院 | A kind of helmet-type training simulation device for before magnetic resonance examination |
| CN112675500A (en) * | 2020-12-31 | 2021-04-20 | 合肥工业大学 | Breathing training device and application thereof |
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