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Radiology, Vol 127, 821-824, Copyright © 1978 by Radiological Society of North America

ARTICLES

Voice change after radiotherapy. Some preliminary results

RH Colton, RH Sagerman, CT Chung, YW Yu and GF Reed

A one-third octave spectral analysis was performed on two sentences spoken by 5 patients with laryngeal cancer, 5 with head/neck cancer not involving the vocal cords, and 12 normal subjects. Recordings were made prior to and at weekly intervals during radiotherapy as well as at periodic intervals post-treatment. Patients with laryngeal cancer exhibited lower spectral levels than normal throughout radiotherapy as well as several months post-treatment. By one year after treatment, the spectral levels of these patients were largely in the normal range. Patients with head/neck cancer not involving the vocal cords exhibited greater than normal sound pressure levels throughout most of the spectrum. These levels remained high even at one month post-treatment. Irradiation of normal vocal cord tissue also seems to result in higher spectral levels.


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 Arch Otolaryngol Head Neck SurgHome page
E. Carrara-de Angelis, O. Feher, A. P. B. Barros, I. N. Nishimoto, and L. P. Kowalski
Voice and Swallowing in Patients Enrolled in a Larynx Preservation Trial
Arch Otolaryngol Head Neck Surg, July 1, 2003; 129(7): 733 - 738.
[Abstract] [Full Text] [PDF]


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