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November 28, 1986

The Investigation of Dysphagia

Author Affiliations

The George Washington University Medical Center Washington, DC

JAMA. 1986;256(20):2818. doi:10.1001/jama.1986.03380200056015

To the Editor.—  In the MEDICAL NEWS & PERSPECTIVES article entitled "Dysphagia Management Means Diagnosis, Exercise, Reeducation,"1 cineradiography's role in the diagnosis of dysphagia was stressed. There is no question that dynamic pictures are essential in the evaluation of this disorder; however, appropriate information can be obtained with considerably less radiation exposure for the patient by recording this information on videotape (videofluoroscopy) rather than 16- or 35-mm film (cineradiography).2-5 The distinction is important, as the patient exposure per frame for cineradiography is approximately 6 mR (1.5×10-6 C/kg),3 while for videofluoroscopy it is approximately 0.1 mR (2.6×1.-8 C/kg) per frame.3,4