Digitalization study of sonotubometry device
10.3760/cma.j.issn.1673-0860.2014.06.012
- VernacularTitle:咽鼓管声测法检查仪的数码化初探
- Author:
Yang LI
1
;
Shu CHEN
;
Li XU
;
Dongxiao NONG
;
Anzhou TANG
;
Zhiwei ZHANG
Author Information
1. 广西医科大学附属第一医院耳鼻咽喉头颈外科
- Keywords:
Eustachian tube;
Diagnostic techniques,otological
- From:
Chinese Journal of Otorhinolaryngology Head and Neck Surgery
2014;49(6):497-500
- CountryChina
- Language:Chinese
-
Abstract:
Objectives Sonotubometry 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 lowcost digitalized device.Methods The 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 wetswallowing.The data were statistically analyzed using SPSS 13.0.Results The 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.Conclusions A 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.
