病的声帯振動の模式的表示

概要

論文の詳細を見る
Vibratory mode of the vocal cords in seven different pathological conditions was investigatedby frame-by-frame analysis of ultra high speed motion pictures.The pathological laryngealconditions investigated were recurrent laryngeal nerve palsy, sulcus vocalis, polyp, polypoidvocal cord, amyloid tumor, epithelial hyperplasia, and carcinoma.On the basis of the dataobtained movements of the vocal cord in a frontal section within one vibratory cycle in eachpathological conditions were schematically presented where the vocal cord was regarded as adouble layered vibrator.Furthermore, some comparisons of vibratory mode among the different conditions were studied with a special attention to the maximum amplitude and the maximum velocity of lateral excursion of the vocal cord, which are related to the mass, elasticity, viscosity, and interferences by the counterpart.
社団法人日本耳鼻咽喉科学会の論文