声带息肉,声带小结手术前后的频谱分析

本文通过33例声带息肉、声带小结手术前后真假声音域及噪音对比分析,全部数据用微机处理和t检验,证明频谱分析能客观、数量化地评价手术效果,并对不同手术方法结果比较及职业用声者术后劳动力鉴定提出客观依据。

A SPECTRAL ANALYSIS OF THE VOICE BEFORE AND AFTER THE SURGICAL REMOVAL OF THE VOCAL POLYP AND NODULE

Effects of the surgical removal of the vocal polyps and nodules in 33 patients were evaluated by spectral analysis. A comparison of the vocal register, falsetto as well as noise component was made pre-and postoperatively. The human voices of these cases were showed in digital and graphic forms under the control of computer. In order to obtain a statistical analysis comparisons of data of mean values were made using the Studen's t-test.According to the results from the present study, it could be concluded that the effects of the surgical procedures could be evaluated objectively and quantitatively, and that spectral analysis could provide reliable evidence for the comparison of the effects of various surgical procedures and for the evaluation of vocal ability following the phonosurgery for the ratients who were professional singers or other speakers such as teachers and shop assistants.