The evaluation of dysphagia following radical surgery for oral and pharyngeal carcinomas by cine-magnetic resonance imaging (Cine-MRI).
Cine-magnetic resonance imaging (cine-MRI) creates moving pictures by a video system and turbo-flash method that allow for high-speed MRI. This report describes our experience using this new technique for dynamic imaging using the fast spoiled GRASS (SPGR) sequence to study swallowing in patients with dysphagia following radical surgery for oral cancer. We defined two new parameters, laryngeal elevation and the angle of the epiglottis, to quantify swallowing ability by cine-MRI. These variables were markedly different in patients with dysphagia than they were in healthy controls. Cine-MRI not only provides dynamic images of swallowing but can generate objective measures of swallowing ability as well.
Department of Otolaryngology, Head and Neck Surgery, Shiga University of Medical Science, Otsu, Japan. hkitano@belle.shiga-med.ac.jp
Hiroya
H
Kitano
Yuko
Y
Asada
Kouji
K
Hayashi
Hiroshi
H
Inoue
Kazutomo
K
Kitajima
D000328:Adult; D003680:Deglutition Disorders / Q000503:physiopathology*; D006801:Humans; D019028:Magnetic Resonance Imaging, Cine; D008297:Male; D008875:Middle Aged; D009062:Mouth Neoplasms / Q000601:surgery*; D010610:Pharyngeal Neoplasms / Q000601:surgery*