Kim Dong-Young, Kim Lee-Suk, Kim Kwang Hyun, Sung Myung-Whun, Roh Jong-Lyel, Kwon Tack-Kyun, Lee Sang Joon, Choi Seung-Ho, Wang Soo-Geun, Sung Mee-Young
Department of Otolaryngology-Head and Neck Surgery, Dong-A University, Busan, South Korea.
Acta Otolaryngol. 2003 Dec;123(9):1102-9. doi: 10.1080/00016480310001880.
Videostrobokymography (VSK) has recently been introduced. The aim of this study was to analyze vibratory patterns and objective parameters in various benign vocal fold lesions using VSK and to examine the efficacy of VSK in clinical applications.
Using VSK, we analyzed the vibration patterns of normal vocal folds, various benign lesions such as nodules, polyps, cysts and Reinke's edema and cases of unilateral vocal fold paralysis. We also calculated the objective parameters open quotient and asymmetric index and compared them with their mean values in normal controls.
In nodules, polyps and cysts, the open quotient at the site of the lesion was similar to the mean value in the normal controls; however, on the other parts of the vocal folds, it was much larger than the normal mean value. In Reinke's edema, irregular and asymmetric vibrations were observed. The posterior area of the vocal folds showed larger open quotients than the anterior area. In unilateral vocal fold paralysis, irregular vocal fold vibration and incomplete closure of the vocal folds were documented. Much larger asymmetric indices were calculated for unilateral vocal fold paralysis than in normal controls or for other lesions. The asymmetric index may be a good quantitative parameter of vibration in patients with vocal fold paralysis.
This study demonstrated that VSK could generate clear quantitative documentation of fine vibrations of vocal folds in many different types of benign lesion. VSK has the potential to be an effective tool for the quantitative analysis of vibratory patterns of vocal folds in clinical settings.
视频频闪喉镜检查法（VSK）最近已被引入。本研究的目的是使用VSK分析各种良性声带病变中的振动模式和客观参数，并检验VSK在临床应用中的有效性。
我们使用VSK分析了正常声带、各种良性病变（如小结、息肉、囊肿和任克氏水肿）以及单侧声带麻痹病例的振动模式。我们还计算了开放商和不对称指数等客观参数，并将它们与正常对照组的平均值进行比较。
在小结、息肉和囊肿中，病变部位的开放商与正常对照组的平均值相似；然而，在声带的其他部位，它比正常平均值大得多。在任克氏水肿中，观察到不规则和不对称的振动。声带后部区域的开放商比前部区域大。在单侧声带麻痹中，记录到声带振动不规则和声带不完全闭合。单侧声带麻痹的不对称指数计算值比正常对照组或其他病变大得多。不对称指数可能是声带麻痹患者振动的一个良好定量参数。
本研究表明，VSK可以对许多不同类型良性病变中的声带精细振动生成清晰的定量记录。VSK有潜力成为临床环境中声带振动模式定量分析的有效工具。
