Akihito Yamauchi1, Hisayuki Yokonishi2, Hiroshi Imagawa3, Ken-Ichi Sakakibara4, Takaharu Nito3, Niro Tayama5, Tatsuya Yamasoba3. 1. Department of Otolaryngology, University of Tokyo Hospital, Bunkyo-Ku, Tokyo, Japan. Electronic address: drachilles23@yahoo.co.jp. 2. Department of Otolaryngology, Tokyo Metropolitan Police Hospital, Nakano-Ku, Tokyo, Japan. 3. Department of Otolaryngology, University of Tokyo Hospital, Bunkyo-Ku, Tokyo, Japan. 4. Department of Communication Disorders, Health Sciences University of Hokkaido, Ishikari-Gun, Hokkaido, Japan. 5. Department of Otolaryngology and Tracheo-Esophagology, National Center for Global Health and Medicine, Shinjuku-Ku, Tokyo, Japan.
Abstract
OBJECTIVE: To quantify vibratory characteristics of various laryngeal disorders seen by high-speed digital imaging (HSDI). METHODS: HSDI was performed on 78 patients with various laryngeal disorders (20 with polyp, 16 with carcinoma, 13 with leukoplakia, 6 with vocal fold nodule, and 33 with others) and 29 vocally healthy subjects. Obtained data were quantitatively evaluated by frame-by-frame analysis, laryngotopography, digital kymography, and glottal area waveform. RESULTS: Overall, patients with laryngeal pathologies showed greater asymmetry in amplitude, mucosal wave and phase, smaller mucosal wave, and poorer glottal closure than vocally healthy subjects. Furthermore, disease-specific vibratory disturbances that generally agreed with the findings in the literature were quantified: comparing polyp with nodule, differences were noted in longitudinal phase difference, amplitude, and mucosal wave. In comparison with leukoplakia and cancer, nonvibrating area was more frequently noted in cancer. CONCLUSIONS: The HSDI analysis of various voice disorders using multiple methods can help phonosurgeons to properly diagnose various laryngeal pathologies and to estimate the degree of their vocal disturbances.
OBJECTIVE: To quantify vibratory characteristics of various laryngeal disorders seen by high-speed digital imaging (HSDI). METHODS: HSDI was performed on 78 patients with various laryngeal disorders (20 with polyp, 16 with carcinoma, 13 with leukoplakia, 6 with vocal fold nodule, and 33 with others) and 29 vocally healthy subjects. Obtained data were quantitatively evaluated by frame-by-frame analysis, laryngotopography, digital kymography, and glottal area waveform. RESULTS: Overall, patients with laryngeal pathologies showed greater asymmetry in amplitude, mucosal wave and phase, smaller mucosal wave, and poorer glottal closure than vocally healthy subjects. Furthermore, disease-specific vibratory disturbances that generally agreed with the findings in the literature were quantified: comparing polyp with nodule, differences were noted in longitudinal phase difference, amplitude, and mucosal wave. In comparison with leukoplakia and cancer, nonvibrating area was more frequently noted in cancer. CONCLUSIONS: The HSDI analysis of various voice disorders using multiple methods can help phonosurgeons to properly diagnose various laryngeal pathologies and to estimate the degree of their vocal disturbances.
Authors: Veronika Birk; Stefan Kniesburges; Marion Semmler; David A Berry; Christopher Bohr; Michael Döllinger; Anne Schützenberger Journal: J Acoust Soc Am Date: 2017-10 Impact factor: 1.840
Authors: Constanze Müller; Felix Caffier; Tadeus Nawka; Matthias Müller; Philipp P Caffier Journal: Biomed Res Int Date: 2020-12-21 Impact factor: 3.411