CN108652621B - Swallowing real-time monitoring method and system thereof - Google Patents
Swallowing real-time monitoring method and system thereof Download PDFInfo
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- CN108652621B CN108652621B CN201810299961.5A CN201810299961A CN108652621B CN 108652621 B CN108652621 B CN 108652621B CN 201810299961 A CN201810299961 A CN 201810299961A CN 108652621 B CN108652621 B CN 108652621B
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- A61B5/4205—Evaluating swallowing
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Abstract
The invention discloses a swallowing real-time monitoring method and a system thereof.A microwave image acquisition unit acquires a microwave image of a throat part of a monitored person in a eating state in real time as a real-time monitoring image, and a main control unit processes the microwave image according to the real-time monitoring image and reference image data to judge whether the monitored person has dysphagia. The technical problems that swallowing monitoring instantaneity is poor, monitored people experience is poor, conditions such as professional examination equipment or medicines are not easy to obtain in the prior art are solved, whether swallowing difficulty occurs to the monitored people is monitored effectively in real time, and therefore the life quality of the monitored people is improved.
Description
Technical Field
The invention relates to the field of swallowing monitoring, in particular to a swallowing real-time monitoring method and a swallowing real-time monitoring system.
Background
At present, the swallowing examination means needs to adopt professional detection equipment or medicines to enter a human body for monitoring. On one hand, conditions such as professional examination equipment or medicines are not easy to obtain, and inconvenience is brought to swallowing monitoring; in the second aspect, professional detection equipment or medicines need to enter a human body, and discomfort is easily brought to a monitored person; in the third aspect, due to the limitation of the checking principle and the like, the monitored person cannot be monitored in real time in the diet process, and whether the monitored person has abnormal conditions in the diet process cannot be judged.
Disclosure of Invention
In order to solve the above technical problems, an object of the present invention is to provide a swallowing real-time monitoring method and a system thereof, which are used for effectively monitoring whether a monitored person swallows in real time.
The technical scheme adopted by the invention is as follows: a swallowing real-time monitoring method comprising the steps of:
s1, acquiring a microwave image of the throat part of the monitored person in a diet state in real time as a real-time monitoring image, and acquiring monitoring image data of the region of interest for monitoring the throat according to the real-time monitoring image;
and S2, processing according to the monitoring image data and preset reference image data to judge whether the monitored person has dysphagia.
2. A method of real-time monitoring of swallowing as in claim 1 further comprising the steps of:
and S3, when the monitored person is judged to have dysphagia, alarming is carried out.
Further, the step S1 is preceded by the step of:
and S0, acquiring a microwave image of the throat part of the monitored person in a non-eating state as a reference image, and acquiring reference image data of the throat monitoring interested area according to the reference image.
Further, the step S1 is specifically:
acquiring microwave images of the throat part of the monitored person in a diet state in real time for multiple times to serve as real-time monitoring images, storing the acquisition time and the acquisition times of the real-time monitoring images, gradually increasing the acquisition times along with the increase of the acquisition time, and acquiring monitoring image data of the throat monitoring interested area according to the real-time monitoring images;
the step S2 specifically includes:
and processing according to the monitoring image data, the acquisition times and preset reference image data to judge whether the monitored person has dysphagia.
Further, the step S2 includes the sub-steps of:
s21, obtaining swallowing judgment information according to the monitoring image data and the reference image data;
s22, acquiring a relation curve chart of the acquisition times and swallowing judgment information, and acquiring a swallowing judgment slope according to the relation curve chart;
s23, judging whether the swallowing judgment slope is smaller than a preset reference slope or not, and if so, indicating that the monitored person has dysphagia; otherwise, it indicates that the monitored person swallows normally.
Further, the swallowing judgment information includes image morphology information and/or image signal maximum intensity information and/or image signal intensity distribution information.
Furthermore, the swallowing judgment information is image form information, image signal maximum intensity information and image signal intensity distribution information;
the step S22 specifically includes:
acquiring a relation curve graph of the acquisition times and the image form information, acquiring a slope of the curve as a first slope, acquiring a relation curve graph of the acquisition times and the image signal maximum intensity information, acquiring a slope of the curve as a second slope, acquiring a relation curve graph of the acquisition times and the image signal intensity distribution information, acquiring a slope of the curve as a third slope, and taking an average value of absolute values of the first slope, the second slope and the third slope as a swallowing judgment slope.
The other technical scheme adopted by the invention is as follows: a real-time monitoring system for swallowing comprises
The microwave image acquisition unit is used for acquiring a microwave image of the throat part of a monitored person in a diet state in real time as a real-time monitoring image;
the main control unit is used for acquiring monitoring image data of a throat monitoring interested area according to the real-time monitoring image and processing the monitoring image data and preset reference image data to judge whether the monitored person has dysphagia or not;
and the output end of the microwave image acquisition unit is connected with the input end of the main control unit.
Further, the swallowing real-time monitoring system further comprises:
the alarm unit is used for alarming when the monitored person is judged to have dysphagia; the output end of the main control unit is connected with the input end of the alarm unit.
Furthermore, the microwave image acquisition unit is also used for acquiring a microwave image of the throat part of the monitored person in a non-eating state as a reference image;
and the main control unit is also used for acquiring reference image data of the region of interest for monitoring the throat according to the reference image.
Furthermore, the microwave image acquisition unit comprises a microwave antenna module, a microwave excitation module and a microwave collection module, wherein the microwave excitation module is used for exciting the microwave antenna module, and the microwave collection module is used for acquiring microwave signals received by the microwave antenna module and carrying out data processing on the microwave signals;
the output end of the microwave antenna module is connected with the input end of the microwave collecting module, and the output end of the microwave excitation module is connected with the input end of the microwave antenna module.
Further, the microwave antenna module is a 360-degree circular microwave antenna array.
Furthermore, the microwave image acquisition unit further comprises a microwave switch module for controlling the on-off of a channel between the microwave acquisition module and each microwave antenna in the 360-degree annular microwave antenna array, the output end of the microwave antenna module is connected with the input end of the microwave switch module, the output end of the microwave switch module is connected with the input end of the microwave acquisition module, and the output end of the main control unit is connected with the input end of the microwave switch module.
Further, the microwave image acquisition unit further comprises a detection device module, the 360-degree annular microwave antenna array is arranged on the detection device module, the detection device module comprises a one-key disassembly switch, and the one-key disassembly switch is used for rapidly opening and closing the detection device module.
The first beneficial effect of the invention is that:
the invention relates to a swallowing real-time monitoring method. The microwave image of the throat part of the monitored person in the eating state is acquired in real time to serve as a real-time monitoring image, and the real-time monitoring image and the reference image data are processed to judge whether the monitored person has dysphagia or not. The technical problems that swallowing monitoring instantaneity is poor, monitored people experience is poor, conditions such as professional examination equipment or medicines are not easy to obtain in the prior art are solved, whether swallowing difficulty occurs to the monitored people is monitored effectively in real time, and therefore the life quality of the monitored people is improved.
In addition, the invention alarms in time when judging that the monitored person has dysphagia so as to remind the staff and relieve the pain of the monitored person caused by the dysphagia; the accuracy of dysphagia measurement is effectively improved by comprehensively processing and judging the real-time monitoring images acquired for multiple times;
the second beneficial effect of the invention is that:
according to the swallowing real-time monitoring system, the microwave image acquisition unit acquires the microwave image of the throat part of the monitored person in a eating state in real time to serve as a real-time monitoring image, and the main control unit processes the microwave image according to the real-time monitoring image and reference image data to judge whether the monitored person has swallowing difficulty or not. The technical problems that swallowing monitoring instantaneity is poor, monitored people experience is poor, conditions such as professional examination equipment or medicines are not easy to obtain in the prior art are solved, whether swallowing difficulty occurs to the monitored people is monitored effectively in real time, and therefore the life quality of the monitored people is improved.
In addition, the alarm unit is arranged, so that the alarm is timely given when the monitored person is judged to have dysphagia, the staff is reminded, and the pain of the monitored person caused by the dysphagia is relieved; the acquisition precision of microwave signals is improved by arranging the 360-degree annular microwave antenna array, so that the precision of microwave images of the throat part is improved; in addition, the microwave signal acquisition system with one microwave collection module corresponding to a plurality of microwave antennas is realized by arranging the microwave switch module, and the hardware cost of the detection system is saved.
The invention can be widely applied to various swallowing monitoring systems.
Drawings
The following further describes embodiments of the present invention with reference to the accompanying drawings:
FIG. 1 is a block diagram of an embodiment of a real-time swallowing monitoring system according to the invention;
FIG. 2 is a schematic structural diagram of a microwave antenna module of a real-time swallowing monitoring system according to an embodiment of the invention;
FIG. 3 is a flowchart of a method of an embodiment of a real-time swallowing monitoring method of the invention;
FIG. 4 is a method flow diagram of another embodiment of a method of real-time monitoring of swallowing in accordance with the present invention;
FIG. 5 is a graph of transmission coefficients in microwave data monitored by a real-time swallowing monitoring system according to the present invention;
FIG. 6 is a graph of reflectance in microwave data monitored by a real-time swallowing monitoring system according to the invention;
fig. 7 is a schematic representation of a microwave image of the throat area.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
In recent years, the microwave imaging technology is a novel non-invasive detection means, and has the characteristics of high resolution, strong penetrating power, low interception rate, strong anti-interference performance and the like, so that the microwave imaging technology receives more and more attention in the fields of military affairs, archaeology, commerce, economy and the like. Compared with X-ray imaging, the microwave imaging technology has the advantages of small radiation power, real-time processing, simple circuit implementation mode, easy system integration and miniaturization and the like, and is a hot spot internationally used for detecting, applying and researching human tissue structures at present. The invention introduces a microwave imaging technology into diet monitoring of a monitored person, and aims to provide an accurate and effective swallowing noninvasive monitoring method and system. The principle is to irradiate the object to be measured with microwaves and then reconstruct the shape or (complex) permittivity distribution of the object from the measurements of the scattered field outside the object. Because the dielectric constant of food is also obviously higher than the dielectric constant value of air, through monitoring the dielectric constant change condition of throat position, will judge whether have food piece long-time to block in the throat position to reach the purpose of carrying out real-time supervision to the person's of being monitored diet process. The monitoring system can be used for monitoring the swallowing process of a monitored person in real time in the eating process of the monitored person, accurately judging whether abnormal conditions such as food block blockage occur or not, giving an early warning to nursing staff, providing a basis for the nursing staff to take timely and effective treatment measures, rapidly relieving the pain of the monitored person, reducing the incidence rate of complications caused by swallowing, and reducing the potential risk caused by the food block blockage of the monitored person in the eating process, thereby providing powerful life guarantee for the monitored person and improving the life quality of the monitored person. Therefore, the method has very important significance for accurately, timely and effectively monitoring the diet process of the monitored person.
Referring to fig. 1, fig. 1 is a block diagram of a swallowing real-time monitoring system according to an embodiment of the present invention, and the swallowing real-time monitoring system includes:
the microwave image acquisition unit 1 is used for acquiring a microwave image of the throat part of a monitored person in a diet state in real time as a real-time monitoring image; the microwave image acquisition unit 1 is also used for acquiring a microwave image of the throat part of the monitored person in a non-eating state as a reference image;
the main control unit 2 is used for acquiring monitoring image data of a throat monitoring interested area according to the real-time monitoring image and processing the monitoring image data and preset reference image data to judge whether the monitored person has dysphagia; the main control unit 2 is also used for controlling the starting of the monitoring system, the man-machine interaction, the display of monitoring records and the like; the output end of the microwave image acquisition unit 1 is connected with the input end of the main control unit 2; the main control unit 2 is further configured to obtain reference image data of the region of interest for throat monitoring according to the reference image.
The alarm unit 3 is used for alarming when the monitored person is judged to have dysphagia; the output end of the main control unit 2 is connected with the input end of the alarm unit 3. In this embodiment, the main control unit 2 is further configured to control the alarm unit to send an alarm prompt to prompt the monitored person or swallow the caregiver when the monitored person is monitored that the food lumps are blocked in the eating process. The alarm unit can be an acoustic alarm unit, such as a loudspeaker, and gives out alarm prompt sound to prompt a monitored person to swallow; or an optical alarm unit, such as an optical alarm, and in order to more conveniently and effectively perform alarm prompt, an audible and visual alarm can be used as the alarm unit.
As a further improvement of the technical solution, referring to fig. 1 and fig. 2, fig. 2 is a schematic structural diagram of an embodiment of a microwave antenna module of a swallowing real-time monitoring system according to the present invention; the microwave image acquisition unit 1 comprises a microwave antenna module 11, a microwave excitation module 12, a microwave switch module 13, a microwave collection module 14 and a data transmission module 15, the output end of the microwave excitation module 12 is connected with the input end of the microwave antenna module 11, the output end of the microwave antenna module 11 is connected with the input end of the microwave switch module 13, the output end of the microwave switch module 13 is connected with the input end of the microwave collection module 14, the output end of the microwave collection module 14 is connected with the input end of the data transmission module 15, the output end of the data transmission module 15 is connected with the input end of the main control unit 2, and the output end of the main control unit 2 is connected with the input end of the microwave switch module 13. The microwave antenna module 11 is a 360-degree annular microwave antenna array, and includes a plurality of microwave antennas 111, and the microwave antennas 111 are arranged in an annular shape, as shown in fig. 2, so as to improve the acquisition precision of microwave signals, and further improve the precision of microwave images at the throat; the microwave image acquisition unit 1 further comprises a detection device module 112, the 360-degree annular microwave antenna array is arranged on the detection device module 112, the detection device module 112 is mainly used for structural layout of the microwave antenna, the detection device module 112 comprises a one-key disassembly switch C, and the detection device module 112 can be quickly opened and closed through the one-key disassembly switch C, so that operation of medical staff can be facilitated, and experience of a monitored person can be improved; the microwave excitation module 12 is configured to excite the microwave antenna module, so that the microwave antenna 111 transmits a microwave signal to the monitored person a; the microwave collection module 14 is configured to collect microwave signals received by the microwave antenna module 11 and perform data processing on the microwave signals; the microwave switch module 13 is configured to control on/off of a channel between the microwave collection module 14 and each microwave antenna in the 360-degree circular microwave antenna array, in this embodiment, the microwave switch module 13 includes a microwave switch (which may be an electronic switch or a mechanical switch), so that the microwave collection module 14 can collect microwave signals of different microwave antennas in a time-sharing manner, a requirement of the monitoring system on the microwave collection module 14 can be reduced, on the basis that the number of the microwave collection module 14 is significantly less than that of the microwave antennas, excitation and signal reception of the microwave antenna array can be achieved, a speed of the monitoring system for collecting microwave data can be significantly increased, and a hardware cost of the monitoring system is reduced. The data transmission module 15 is configured to transmit the microwave signals acquired by the microwave collection module 14 and the microwave antenna information corresponding to the microwave signals to the main control unit 2, so as to provide a strong guarantee for the system to accurately analyze the microwave data in real time. The data transmission module 15 may be a wired data transmission module or a convenient wireless data transmission module, such as a WiFi module or a bluetooth module.
Referring to fig. 2, the swallowing real-time monitoring system of the present invention is used in the following specific process:
firstly, a monitored person A sits on a seat B, a 360-degree annular microwave antenna array is enabled to face the throat part of the monitored person A, and the throat part of the monitored person A is located at the center of the 360-degree annular microwave antenna array; then, a power supply is switched on, a microwave excitation module is started, and a microwave antenna module works to send out a microwave signal to the throat part of the monitored person A; the microwave collection module collects microwave signals of the microwave antenna module and processes the microwave signals in a data mode, data are transmitted into the main control unit to be processed and judged, and when swallowing abnormity, namely swallowing difficulty, occurs, the control alarm unit gives an alarm to remind a worker that the swallowing difficulty occurs to the monitored person A. After the monitoring is finished, the 360-degree annular microwave antenna array can be quickly unlocked by pressing the one-button disassembling switch C.
Because the dielectric constant of the throat part of the monitored person under the food blocking condition is obviously higher than that under the normal state, the microwave swallowing monitoring system reconstructs the characteristic distribution of the dielectric constant change of the throat part through a microwave imaging technology, acquires a microwave image of the throat part, and processes the microwave image according to a reference image and a real-time monitoring image so as to accurately judge whether abnormal conditions such as food block blocking and the like exist, thereby realizing real-time and effective swallowing monitoring of the monitored person in the eating process, providing an accurate and effective noninvasive swallowing monitoring system for the monitored person and improving the life quality of the monitored person.
Based on the real-time swallowing monitoring system, the present invention further provides a real-time swallowing monitoring method, referring to fig. 3, fig. 3 is a flowchart of a method according to an embodiment of the real-time swallowing monitoring method of the present invention, including the following steps:
s1, acquiring a microwave image of the throat part of the monitored person in a diet state in real time as a real-time monitoring image, and acquiring monitoring image data of the region of interest for throat monitoring according to the real-time monitoring image;
and S2, processing according to the monitoring image data and the preset reference image data to judge whether the monitored person has dysphagia.
As a further improvement of the technical solution, referring to fig. 3, the swallowing real-time monitoring method further comprises the steps of:
and S3, when the monitored person is judged to have dysphagia, alarming is carried out.
When monitoring that a monitored person swallows, the monitoring system performs alarm operation, the main control unit controls the alarm unit to give an alarm to prompt staff, the morbidity probability of complications caused by swallowing of the monitored person is reduced, and the potential risk caused by food block blockage of the monitored person in the diet process can be reduced, so that powerful life guarantee is provided for the monitored person, and the life quality of the monitored person is improved. Specifically, the alarm operation can be an acoustic alarm or an optical alarm, and in the invention, an audible and visual alarm is adopted for alarming.
As a further improvement of the technical solution, step S1 is preceded by the step of:
and S0, acquiring a microwave image of the throat part of the monitored person in a non-eating state as a reference image, and acquiring reference image data of the throat monitoring interested area according to the reference image. The microwave image of the throat part of the detected person before eating is used for acquiring the reference image data in the non-eating state, for example, the dysphagia judgment accuracy is high. In addition, reference image data acquired in advance, for example, normal image data obtained by using big data analysis, may be stored as reference image data in the main control unit of the monitoring system for subsequent determination.
As a further improvement of the technical solution, step S1 specifically includes:
acquiring microwave images of the throat part of a monitored person in a eating state in real time for multiple times to serve as real-time monitoring images, storing the acquisition time and the acquisition times of the real-time monitoring images, gradually increasing the acquisition times along with the increase of the acquisition time, and acquiring monitoring image data of the throat monitoring interested area according to the real-time monitoring images; the real-time monitoring images are obtained for multiple times, so that the accuracy of dysphagia measurement can be effectively improved;
step S2 specifically includes:
and processing according to the monitoring image data, the acquisition times and preset reference image data to judge whether the monitored person has dysphagia.
Further, step S2 includes the sub-steps of:
s21, obtaining swallowing judgment information according to the monitoring image data and the reference image data;
s22, acquiring a relation curve chart of the acquisition times and swallowing judgment information, and acquiring a swallowing judgment slope according to the relation curve chart;
s23, judging whether the swallowing judgment slope is smaller than a preset reference slope or not, and if so, indicating that the monitored person has dysphagia; otherwise, it indicates that the monitored person swallows normally.
Wherein the swallowing judgment information includes one or more of image morphology information, image signal maximum intensity information, and image signal intensity distribution information. In this embodiment, the swallowing judgment information is image form information, image signal maximum intensity information, and image signal intensity distribution information; and obtaining a relation curve graph of the acquisition times and the image form information, obtaining the slope of the curve as a first slope, obtaining the relation curve graph of the acquisition times and the image signal maximum intensity information, obtaining the slope of the curve as a second slope, obtaining the relation curve graph of the acquisition times and the image signal intensity distribution information, obtaining the slope of the curve as a third slope, and taking the average value of the absolute values of the first slope, the second slope and the third slope as a swallowing judgment slope to perform subsequent swallowing judgment.
The microwave imaging technology is used for reconstructing the characteristic distribution of the dielectric constant change of the throat part, acquiring the microwave image of the throat part, and processing the microwave image according to the reference image and the real-time monitoring image so as to accurately judge whether abnormal conditions such as food block blockage exist, so that real-time and effective swallowing monitoring of the eating process of the monitored person is realized, an accurate and effective noninvasive swallowing monitoring technology is provided for the monitored person, and the life quality of the monitored person is improved.
Referring to fig. 4, fig. 4 is a flowchart of a real-time swallowing monitoring method according to another embodiment of the invention; the following describes a swallowing real-time monitoring method based on the swallowing real-time monitoring system specifically:
the first step is as follows: before starting diet monitoring, fixing the position between a monitoring system and a monitored person, setting monitoring parameters of a swallowing real-time monitoring system, including setting a preset running time _ set and a data acquisition interval time _ delta of the monitoring system, and then starting the monitoring system to start monitoring; the preset running time of the system is set, so that discomfort of a monitored person caused by long-time monitoring can be avoided; the data acquisition interval time is set in cooperation with the eating rules of the monitored person, so that the accuracy of dysphagia monitoring can be improved.
The second step is that: a set of microwave data before eating is collected, and referring to fig. 5 and fig. 6, fig. 5 is a transmission coefficient curve graph (frequency-amplitude curve graph of transmission coefficient) in the microwave data monitored by a swallowing real-time monitoring system according to the present invention; FIG. 6 is a graph of reflection coefficients (frequency-amplitude curves of reflection coefficients) in microwave data monitored by a real-time swallowing monitoring system in accordance with the present invention; they represent the transmission coefficient and reflection coefficient curves tested by the microwave system respectively, and obtain the microwave image of the throat part before eating. Referring to fig. 7, fig. 7 is a schematic view of microwave image of throat region, wherein D is a region of interest for throat monitoring, and is a data region of interest, and the trend of the graph data of the region of the real-time monitoring image and the reference image changing with time is analyzed as the basis for abnormal monitoring judgment; e is the neck contour curve: the system is used for outlining a neck contour curve of a monitored person, wherein a human body normal tissue microwave imaging result is arranged inside the contour, and a reference background area (such as air) imaging is arranged outside the contour; f is the neck imaging area: the neck contour curve is positioned in the neck contour curve, and the microwave imaging result of the normal tissue of the human body is used as a neck imaging area; g is the reference background area: the image area (external environment, such as air) outside the neck contour curve is an imaging area outside the neck of the human body, and the image intensity value of the area is set to be the lowest as a reference background area in order to avoid the interference of the test environment because the imaging area has no influence on the monitoring result. Next, image data of the region D in fig. 7 (i.e., the throat monitoring interest region) is acquired as reference image data S according to an image segmentation algorithm. The image data of the interested region of the throat is acquired for subsequent processing and judgment, so that the required calculation amount can be reduced, and the judgment speed of the swallowing abnormity is improved.
The third step: recording microwave images of throat parts in the diet process in real time, acquiring image data of a D area in the graph 7 as monitoring image data T1, recording a time axis parameter T1 of the acquired monitoring image data, and setting the acquisition frequency n as 1;
the fourth step: the monitored image data T1 is analyzed in combination with the reference image data S, including multi-parameter analysis of image morphology information, image signal maximum intensity information, image signal intensity distribution information, and the like, the analysis result is used as judgment group information J1 (image morphology information J1S, maximum intensity information J1M, intensity distribution information J1H), and the mapping relationship between the number of acquisitions n (n is 1) and each subset parameter information in J1 is recorded. Whether swallowing abnormity occurs or not is judged by analyzing a plurality of parameters of the image form information, the image signal maximum intensity information and the image signal intensity distribution information, so that the accuracy of judging swallowing abnormity can be improved. The specific analysis content of each subset of parameter information in the judgment group information J1 can be subdivided into the following aspects:
image form information J1S: according to the physical coordinate position range of the image, record data of a corresponding D area in the reference image data S and the monitoring image data T1 are respectively intercepted as ASAnd AT1. Get ASCoordinate information (X) corresponding to each pixel point after the intensity maximum value of (A) is decreased by-3 dBAS,YAS) At the same time, take AT1Coordinate information (X) corresponding to each pixel point after the intensity maximum value of (A) is decreased by-3 dBAT1,YAT1). Calculating coordinate information XASLength of array and XAT1Length of the array, using the minimum value between the two as the length of the array of coordinate information, and using X as the length of the arrayAS、YASNumber series and XAT1、YAT1The array being rearranged in descending or ascending order (the length of the array being the coordinate information X)ASLength of array and XAT1The minimum in the length of the array). Calculating XASNumber series and XAT1Series of Pearson correlation coefficients, as Px, for YASNumber series and YAT1The Pearson correlation coefficient of the series is taken as Py.
Maximum intensity information J1M: a is to beSAnd AT1The ratio of the maximum intensity values of (a) is taken as the maximum intensity information J1M。
Intensity distribution information J1H: calculating a normalized image matrix ASNormalize and AT1Taking the absolute value of the difference between the two values as Intensity data Intensity, taking the total pixel value (i.e. the total number of pixels) corresponding to the statistical Intensity data as N, taking the number of pixels with the statistical Intensity value larger than the threshold value as N _ threshold, and then recording the ratio of N _ threshold and NThe value is intensity distribution information J1H. Wherein:
Intensity＝|AT1_normalize-As_normalize|；
threshold max (intensity) t, where t has a value between (0.5, 0.95);
the fifth step: and after waiting for the interval time _ delta of the collected data, judging whether the running time _ run is greater than the preset running time _ set of the monitoring system, if so, repeating the third step and the fourth step to obtain a series of microwave images of the throat part, and obtaining the change trend of the data of the throat monitoring interested region from the series of microwave images changing along with time to be used as a data source for abnormal analysis. Specifically, the monitoring image data, the time axis parameter and the judgment group information are respectively stored as Tn、tn、JnWherein n is n + 1; and drawing n and JnEach subset information parameter (J)nS、JnM、JnH) Respectively calculating the change slope values k (k) corresponding to the relation curvesS、kM、kH) And calculate kS、kM、kHIf the value of kf is smaller than a preset reference slope K, judging that the swallowing is difficult, carrying out sound-light alarm, and sending out sound-light alarm, otherwise, continuing to operate the monitoring system;
and a sixth step: after waiting for the data collection interval time _ delta, judging whether the running time _ run is greater than the preset running time _ set of the monitoring system, if so, sending a reminding signal (which can be a voice reminder) to indicate that the set monitoring time length is reached, and automatically stopping the running of the monitoring system.
While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (11)
1. A method of real-time monitoring of swallowing comprising the steps of:
s1, acquiring a microwave image of the throat part of the monitored person in a diet state in real time as a real-time monitoring image, and acquiring monitoring image data of the region of interest for monitoring the throat according to the real-time monitoring image;
s2, processing according to the monitoring image data and preset reference image data to judge whether the monitored person has dysphagia;
s3, when the monitored person is judged to have dysphagia, alarming is carried out;
the step S1 specifically includes:
acquiring microwave images of the throat part of the monitored person in a diet state in real time for multiple times to serve as real-time monitoring images, storing the acquisition time and the acquisition times of the real-time monitoring images, gradually increasing the acquisition times along with the increase of the acquisition time, and acquiring monitoring image data of the throat monitoring interested area according to the real-time monitoring images;
the step S2 specifically includes:
processing according to the monitoring image data, the acquisition times and preset reference image data to judge whether the monitored person has dysphagia;
the step S2 includes the sub-steps of:
s21, obtaining swallowing judgment information according to the monitoring image data and the reference image data;
s22, acquiring a relation curve chart of the acquisition times and swallowing judgment information, and acquiring a swallowing judgment slope according to the relation curve chart;
s23, judging whether the swallowing judgment slope is smaller than a preset reference slope or not, and if so, indicating that the monitored person has dysphagia; otherwise, it indicates that the monitored person swallows normally.
2. A method of real-time monitoring swallowing as in claim 1, further comprising, prior to step S1, the steps of:
and S0, acquiring a microwave image of the throat part of the monitored person in a non-eating state as a reference image, and acquiring reference image data of the throat monitoring interested area according to the reference image.
3. A method of real-time monitoring swallowing as in claim 1 where the swallowing decision information comprises image morphology information and/or image signal maximum intensity information and/or image signal intensity distribution information.
4. The swallowing real-time monitoring method according to claim 3, wherein the swallowing judgment information is image morphology information, image signal maximum intensity information, and image signal intensity distribution information;
the step S22 specifically includes:
acquiring a relation curve graph of the acquisition times and the image form information, acquiring a slope of the curve as a first slope, acquiring a relation curve graph of the acquisition times and the image signal maximum intensity information, acquiring a slope of the curve as a second slope, acquiring a relation curve graph of the acquisition times and the image signal intensity distribution information, acquiring a slope of the curve as a third slope, and taking an average value of absolute values of the first slope, the second slope and the third slope as a swallowing judgment slope.
5. A swallowing real-time monitoring system, comprising:
the microwave image acquisition unit is used for acquiring a microwave image of the throat part of a monitored person in a diet state in real time as a real-time monitoring image;
the main control unit is used for acquiring monitoring image data of a throat monitoring interested area according to the real-time monitoring image and processing the monitoring image data and preset reference image data to judge whether the monitored person has dysphagia, wherein the monitoring image data of the throat monitoring interested area is acquired according to the real-time monitoring image and the monitoring image data is processed to judge whether the monitored person has dysphagia according to the monitoring image data and the preset reference image data, and the method comprises the following steps:
s1, acquiring microwave images of the throat part of the monitored person in a diet state in real time for multiple times to serve as real-time monitoring images, storing the acquisition time and the acquisition times of the real-time monitoring images, gradually increasing the acquisition times along with the increase of the acquisition time, and acquiring monitoring image data of the throat monitoring interested area according to the real-time monitoring images;
s2, processing according to the monitoring image data, the acquisition times and preset reference image data to judge whether the monitored person has dysphagia;
the step S2 includes the sub-steps of:
s21, obtaining swallowing judgment information according to the monitoring image data and the reference image data;
s22, acquiring a relation curve chart of the acquisition times and swallowing judgment information, and acquiring a swallowing judgment slope according to the relation curve chart;
s23, judging whether the swallowing judgment slope is smaller than a preset reference slope or not, and if so, indicating that the monitored person has dysphagia; otherwise, indicating that the monitored person swallows normally;
and the output end of the microwave image acquisition unit is connected with the input end of the main control unit.
6. A swallowing real-time monitoring system as in claim 5, further comprising:
the alarm unit is used for alarming when the monitored person is judged to have dysphagia; the output end of the main control unit is connected with the input end of the alarm unit.
7. A swallowing real-time monitoring system as claimed in claim 5, wherein the microwave image acquisition unit is further used for acquiring a microwave image of the throat part of the monitored person in a non-eating state as a reference image;
and the main control unit is also used for acquiring reference image data of the region of interest for monitoring the throat according to the reference image.
8. A swallowing real-time monitoring system as claimed in any one of claims 5 to 7, wherein the microwave image acquisition unit comprises a microwave antenna module, a microwave excitation module and a microwave collection module, the microwave excitation module is used for exciting the microwave antenna module, and the microwave collection module is used for acquiring and carrying out data processing on microwave signals received by the microwave antenna module;
the output end of the microwave antenna module is connected with the input end of the microwave collecting module, and the output end of the microwave excitation module is connected with the input end of the microwave antenna module.
9. A swallowing real-time monitoring system as in claim 8, wherein the microwave antenna module is a 360 degree circular microwave antenna array.
10. A swallowing real-time monitoring system according to claim 9, wherein the microwave image collecting unit further comprises a microwave switch module for controlling the on/off of the channel between the microwave collecting module and each microwave antenna in the 360-degree circular microwave antenna array, the output end of the microwave antenna module is connected with the input end of the microwave switch module, the output end of the microwave switch module is connected with the input end of the microwave collecting module, and the output end of the main control unit is connected with the input end of the microwave switch module.
11. A swallowing real-time monitoring system as in claim 9, wherein the microwave image capture unit further comprises a detection device module, the 360 degree annular microwave antenna array is disposed on the detection device module, the detection device module comprises a one-touch disconnect switch for rapidly opening and closing the detection device module.
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| TWI778710B (en) * | 2021-07-15 | 2022-09-21 | 國立勤益科技大學 | Device for non-contact detection of swallowing function and detection method thereof |
| CN117116470B (en) * | 2023-10-16 | 2024-01-23 | 中国人民解放军总医院第二医学中心 | Dysphagia screening system and screening method |
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| US8652040B2 (en) * | 2006-12-19 | 2014-02-18 | Valencell, Inc. | Telemetric apparatus for health and environmental monitoring |
| CN102955159B (en) * | 2011-08-30 | 2014-07-23 | 中国科学院电子学研究所 | Electromagnetic inverse scattering imaging method based on compressed sensing |
| CN203234753U (en) * | 2013-03-21 | 2013-10-16 | 广州龙之杰科技有限公司 | Medical deglutition image acquisition device |
| CN103202703A (en) * | 2013-03-21 | 2013-07-17 | 广州龙之杰科技有限公司 | Medical swallowing image collection device and image processing method thereof |
| CN103919549B (en) * | 2013-07-25 | 2016-01-20 | 深圳先进技术研究院 | A kind of device of feedback treating dysphagia and equipment |
| CN103919548B (en) * | 2013-07-25 | 2017-02-08 | 中国科学院深圳先进技术研究院 | Detecting device and detecting equipment for swallowing muscle disorders |
| CN103647158B (en) * | 2013-11-25 | 2016-01-20 | 成都九华圆通科技发展有限公司 | Handheld microwave monitoring aerial governor circuit and method |
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| CN107595294B (en) * | 2017-09-06 | 2020-12-25 | 深圳先进技术研究院 | Method, device, equipment and storage medium for detecting swallowing function |
| CN107736891A (en) * | 2017-11-09 | 2018-02-27 | 吉林大学 | A kind of aphetite disorder screening system |
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