Digitalization study of sonotubometry device.

Yang LI; Shu Chen; Li XU; Dongxiao Nong; Anzhou Tang; Zhiwei Zhang

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Digitalization study of sonotubometry device.

Author: Yang LI ¹ ; Shu CHEN ¹ ; Li XU ¹ ; Dongxiao NONG ² ; Anzhou TANG ¹ ; Zhiwei ZHANG ¹
Author Information

1. Department of Otorhinolaryngology Head and Neck Surgery, First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China.
2. Department of Otorhinolaryngology Head and Neck Surgery, First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China. Email: nongdx@gxmu.edu.cn.
Publication Type:Journal Article
MeSH: Acoustic Impedance Tests; Audiometry; instrumentation; Equipment Design; Eustachian Tube; physiology; physiopathology; Humans; Man-Machine Systems
From: Chinese Journal of Otorhinolaryngology Head and Neck Surgery 2014;49(6):497-500
CountryChina
Language:Chinese
Abstract:
OBJECTIVESSonotubometry is wildly used in developed countries, offers a easy, versatile and objective way to assess the function of Eustachian tube. The objectives of this study are to develop a low-cost digitalized device.
METHODSThe digitalized sonotubometry device was made of a personal computer with sound input and output accessories. The PC sound card, connected to a signal amplifier, exported probe band noise, while feedback sound was collected by a microphone. All 36 volunteers (72 ears) were involved in the sonotubometry test with JK-04A and CHN-08, in the conditions of dry-swallowing and wet-swallowing. The data were statistically analyzed using SPSS 13.0.
RESULTSThe basic electroacoustic performance of the CHN-08 was acceptable. CHN-08 (7 kHz) detection and JK-04A consistency of kappa index was 0.472; CHN-08 (8 kHz) and JK-04A consistency of kappa index was 0.487; CHN-08 (7 kHz) and CHN-08 (8 kHz) consistency of kappa index was 0.688.Under the JK-04A, CHN-08 (7 kHz) and CHN-08 (8 kHz) three setups, Eustachian tube opening frequency was significantly lower for wet-swallowing than dry-swallowing, P < 0.05.
CONCLUSIONSA low-cost digitalized sonotubometry is successfully developed. Its electroacoustic performance proved acceptable by authority assessments. The detection rate of CHN-08 is in accordance with that of JK-04A moderately. The study revealed that Eustachian tube is opened more easily by dry-swallowing than by wet-swallowing.