吞咽声音的解读：液体流经环咽肌的过程。
Interpreting the sounds of swallowing: fluid flow through the cricopharyngeus.
作者信息
Hamlet S L, Nelson R J, Patterson R L
机构信息
Department of Otolaryngology, Wayne State University, Detroit, MI 48201.
出版信息
Ann Otol Rhinol Laryngol. 1990 Sep;99(9 Pt 1):749-52. doi: 10.1177/000348949009900916.
PMID:2396813
Abstract
The sounds of swallowing in normal subjects were recorded by means of a miniature accelerometer on the throat, simultaneously with videofluoroscopy of a modified barium swallow. Consistent correspondence was found between a rapid change in the acoustic spectrum of the accelerometer signal (the appearance of a region of energy prominence above 1,000 Hz) and bolus flow through the cricopharyngeus.
摘要
通过置于喉部的微型加速度计记录正常受试者的吞咽声音，同时对改良钡剂吞咽进行荧光透视检查。发现加速度计信号的声谱快速变化（在1000Hz以上出现能量突出区域）与食团通过环咽肌的流动之间存在一致的对应关系。
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