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Method for detecting accuracy of human body's upper respiratory tract modeling by applying sound reflection instrument
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An upper respiratory tract and reflectometer technology, applied in applications, sonic diagnosis, infrasound diagnosis, etc., can solve the problems of model accuracy test and deviation, and achieve the effect of good effect, short time and simple operation.
Inactive Publication Date: 2013-08-14
DALIAN UNIV
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Problems solved by technology
The models studied by previous studies were all established based on medical images, and the accuracy of the established models was not tested. Although the obtained numerical simulation results can reflect the actual situation to a certain extent, there are still deviations.
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Embodiment 1
[0022] The subject was a healthy 27-year-old Chinese male with no deviation of nasal septum and no history of snoring.
[0024] (2) The subjects sat quietly in the room for 18 minutes.
[0025] (3) When using the nasal acoustic reflexometer test, the subject takes a seat and gazes at a fixed point on the opposite wall; selects a suitable nasal probe and applies coupling agent to make it closely connected with the subject's anterior nostril, but keep the anterior nostril out of the way. out of shape.
[0026] (4) When using the pharyngogram test, the subject takes a supine position, and the wave tube is perpendicular to the subject's face.
[0027] (5) During the test, ask the subjects to hold their breath; use the nasal / pharyngeal acoustic reflexometer to collect the cross-sectional area values of the nasal cavity and pharyngeal cavity of the ...
Embodiment 2
[0032] The subject is a 48-year-old Chinese male, obese, snoring during sleep, holding breath, awakening, daytime sleepiness, lack of energy, pharyngeal cavity narrowing, diagnosed as sleep apneahypopnea syndrome by polysomnography;
[0033] The method steps are as follows:
[0034] (2) The subject sat quietly in the room for 20 minutes;
[0035] ⑻ For the measurement curves of the nasal acoustic reflexometer and the measurement curve of the pharyngeal acoustic reflexometer, the abscissa ranges from the front of the nostril to 6 cm to 12 cm and from the front of the front teeth to 5 cm to 20 cm were used for research; Draw the curve to test the accuracy of the built model, the curve fit is good, and the model is accurate.
[0036] Other steps are the same as in Example 1.
Embodiment 3
[0038] The subject was a 7-year-old Chinese child, who had a sense of nasal congestion and snoring during sleep, and was diagnosed as adenoid hypertrophy by CT through nasopharyngeal lateral view and electronic laryngoscopy;
[0039] The method steps are as follows:
[0040] (2) The subjects sat quietly in the room for 15 minutes;
[0041] ⑻ For the measurement curves of the nasal acoustic reflexometer and the measurement curve of the pharyngeal acoustic reflexometer, the abscissa ranges from the front of the nostril to 6 cm to 12 cm and from the front of the front teeth to 5 cm to 20 cm were used for research; Draw the curve to check the accuracy of the built model, the curve fit is not good, and the corresponding position of the model has been modified.
[0042] Other steps are the same as in Example 1.
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Abstract
The invention discloses a method for detecting accuracy of human upper respiratory track by applying a sound reflection instrument. In the method, a model is evaluated and improved by comparing obtained data, corresponding to the upper respiratory tract, detected by applying the sound reflection instrument and an established upper respiratory tract model. The method includes that the sound reflection instrument comprises a nasal sound reflection instrument and a pharynx reflection instrument; measured curves of the sound reflection instrument of relationship of the nasal / pharynx reflection instruments are drawn according to the obtained depth of the upper respiratory tract and cross-sectional data inside the upper respirator tract detected by the nasal / pharynx reflection instruments; the nasal / pharynx reflection instruments are used for measuring curves; the curves measured by the sound reflection instrument and the curves drawn according to the model are compared to detect accuracy of the established model. The method for detecting accuracy of human upper respiratory tract modeling by applying the sound reflection instrument has the advantages that the nasal / pharynx reflection instruments are combined, so that detecting of accuracy of the model is good in effect, the detecting method has the advantages of short detecting time and simplicity in operation and the like, and causes no pain for detected persons and is noninvasive.
Description
technical field [0001] The invention relates to a method for testing the upper respiratory tract of a human body, and more specifically relates to a method for testing the modeling accuracy of the upper respiratory tract of a human body using an acoustic reflectometer. Background technique [0002] The human upper respiratory tract is the main channel for human breathing. With the research on the pathogenesis of diseases such as sinusitis and obstructive sleep apnea syndrome, people gradually realized that the variation of the anatomical structure of the upper respiratory tract is related to many upper respiratory tract diseases. The change of anatomical structure leads to the change of mechanism and function, which causes the dysfunction of tissues and organs, and finally leads to clinical symptoms. In recent years, modeling and simulation technology has advanced the development of biomedicine, and the relationship between external environmental stimuli and reconstructed hu...
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