title: Patient motion artifacts on scintigraphic gastric emptying studies.
abstract: Patient motion during scintigraphic gastric emptying studies can result in the false diagnosis of gastroesophageal reflux or of accelerated gastric emptying. A simple means of detecting patient motion, by generating a time-activity curve from a region of interest drawn about a Tc-99m marker, is described.
mesh_terms: D004947:Esophagus / Q000000981:diagnostic imaging; D005746:Gastric Emptying; D006801:Humans; D009068:Movement; D011877:Radionuclide Imaging; D013270:Stomach / Q000000981:diagnostic imaging*; D013667:Technetium; D013997:Time Factors
chemical_list: D013667:Technetium