Application of digital acoustic analysis in assessing aspiration risk among patients with dysphagia
10.3760/cma.j.issn.0254-1424.2021.12.003
- VernacularTitle:数字化音频分析在吞咽障碍患者误吸风险评估中的应用
- Author:
Yaowen ZHANG
1
;
Huayu CHEN
;
Zhiming TANG
;
Zulin DOU
;
Fei ZHAO
;
Yiqiu LIN
;
Huixiang WU
;
Jing SHI
;
Hongmei WEN
;
Guifang WAN
Author Information
1. 中山大学附属第三医院康复医学科，广州 510630
- Keywords:
Dysphagia;
Aspiration;
Digital acoustic analysis
- From:
Chinese Journal of Physical Medicine and Rehabilitation
2021;43(12):1065-1068
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To explore the application of digital acoustic analysis in assessing the risk of aspiration among persons with dysphagia using the Praat speech analysis software.Methods:The swallowing of 46 stroke survivors with dysphagia was studied using video fluoroscopy. Each patient was required to pronounce " yi/i/" 3 times before and after taking each mouthful of food, and their voice samples were collected. The subjects were divided into a non-aspiration group of 16 and an aspiration group of 30 based on their penetration-aspiration scale scores. Fundamental frequency, relative average perturbation (RAP), jitter, shimmer, amplitude perturbation quotient and harmonic-to-noise ratio were compared between the two groups before and after taking food.Results:For the non-aspiration group, there was no significant difference in the acoustic data before and after eating. For the aspiration group there were significant differences in fundamental frequency, relative average perturbation and jitter before and after taking food. The average RAP and jitter of the non-aspiration group were significantly better than the aspiration group′s averages before eating. After eating, however, significant differences were observed only in average jitter.Conclusions:Analyzing perturbation and jitter can help to identify persons at risk of aspiration.
