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Radiology, Vol 144, 587-590, Copyright © 1982 by Radiological Society of North America

ARTICLES

Dynamic, diagnostic, and pharmacological radionuclide studies of the esophagus in achalasia

P Rozen, M Gelfond, S Zaltzman, J Baron and T Gilat

The esophagus was evaluated in 15 patients with achalasia by continuous gamma camera imaging following ingestion of a semi-solid meal labeled with 99mTc. The images were displayed and recorded on a simple computerized data processing/display system. Subsequent cine mode images of esophageal emptying demonstrated abnormalities of the body of the esophagus not reflected by the manometric examination. Computer- generated time-activity curves representing specific regions of interest were better than manometry in evaluating the results of myotomy, dilatation, and drug therapy. Isosorbide dinitrate significantly improved esophageal emptying.




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