Scintigraphic quantification of pharyngeal retention following deglutition.
A procedure is described for quantifying the amount of bolus material retained in the pharynx after completion of a swallow, using radionuclide swallow techniques. Data are derived from scintigraphic time-activity curves. The procedure takes into consideration the differential attenuation of radioactivity through various regions in the body, and expresses the result as a percentage of the total radioactivity in the ingested bolus. Illustrative examples are provided for swallows by normal individuals and patients with head and neck cancer.
Hamlet
S
S
Department of Otolaryngology, Wayne State University, Detroit, MI 48201.
Muz
J
J
Farris
R
R
Kumpuris
T
T
Jones
L
L
D000328:Adult; D000368:Aged; D003679:Deglutition; D005260:Female; D005471:Fluoroscopy; D006801:Humans; D008297:Male; D008875:Middle Aged; D010614:Pharynx / Q000000981:diagnostic imaging* / Q000502:physiology*; D011877:Radionuclide Imaging