摘要
目的 用 3项声学指标对声带息肉手术前后的动态变化进行比较分析 ,探讨它们在临床转归中的变化规律。方法 用声学软件对 31名声带息肉或小结患者在术前及术后第 1、3、5天分别测试并记录在发元音 [i]及[a]时的基频微扰 (Jitter)、幅度微扰 (Shimmer)、谐噪比 (HNR)值 ,并进行多因素方差分析及主成分分析。结果 Jitter、Shimmer均值术后比术前小 ,随着临床情况好转 ,呈减小趋势 ,HNR均值术后比术前大 ,随着临床情况好转 ,呈增大趋势 ,有统计学意义。结论 声学测试为声带息肉术后疗效评价提供一种简便有效的客观测试方法 。
Purpose: To use three acoustic parameters (Jitter, Shimmer, HNR) to analyze the dynamic changes in their values before and after vocal polyps or nodules surgery, try to find intrinsic regularity of the three parameters in clinical therapy. Methods: We acquired the different parameter values by acoustic measurement software when voicing the vowel [a] and [i] in four phases(before surgery and the first, third, fifth day after surgery), proceed the statistical analysis (GLM and PCA). Results: Either vowel [a] or [i], the mean values of Jitter and Shimmer decreased when time passed after surgery and the symptoms got better, and the values of HNR increased at the same time. Conclusions: We suggest that acoustic measurement is a useful method in evaluating the surgery-therapy effects after vocal polyps removal.
出处
《复旦学报（医学版）》
EI
CAS
CSCD
北大核心
2001年第4期311-313,317,共4页
Fudan University Journal of Medical Sciences
