title: Basal interventricular septal thallium-201 defects: real or artifact?
abstract: Misinterpretation of reversible defects at the base of the interventricular septum is perhaps among the greatest single causes of false positive TI-201 myocardial perfusion images. This is a report of a patient with angiographically documented ischemia at the base of the septum and corresponding reversible defects as seen using TI-201 imaging. Illustrated are two different forms of malalignment artifact that duplicate this patient's findings in a patient with normal perfusion.
authors: Valley Cardiovascular Consultants, San Jose, California.
authors: N F
authors: NF
authors: Starksen
authors: W
authors: W
authors: O'Connell
authors: M W
authors: MW
authors: Dae
authors: E H
authors: EH
authors: Botvinick
mesh_terms: D000368:Aged; D016477:Artifacts; D003327:Coronary Disease / Q000000981:diagnostic imaging; D005080:Exercise Test; D005189:False Positive Reactions; D006321:Heart / Q000000981:diagnostic imaging*; D006346:Heart Septum / Q000000981:diagnostic imaging*; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008297:Male; D008875:Middle Aged; D017202:Myocardial Ischemia / Q000000981:diagnostic imaging*; D013794:Thallium Radioisotopes; D015899:Tomography, Emission-Computed, Single-Photon
chemical_list: D013794:Thallium Radioisotopes