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Title: Safety and diagnostic value of intravenous dipyridamole thallium scintigraphy in patients with suspected coronary artery disease
Authors: EI-Desouki, Mahmoud
AI-Nozha, Mansour
AI-Harthi, Saad
Mohammad Arafa
Mohammad Nouh
Jawid Akhtar
Keywords: Thallium-201
T1-201 MPI
Coronary artery disease
Issue Date: 1990
Publisher: King Faisal Specialist Hospital & Research Centre
Citation: Annals of Saudi Medicine: 10(6); 605-610
Abstract: Thallium-Ztll myocardial perfusion imaging (11-201 MPI) performed in patients after maximum exercise is widely used to evaluate patients with suspected coronary artery disease (CAD). Intravenous dipyridamole (DP), by virtue of its potent coronary vasodilation effect, can produce results similar to those of maximum exercise. To evaluate the safety and diagnostic usefulness of intravenous DP thallium imaging, 100 patients with suspected or known CAD were studied. Thirty-two patients were referred for diagnostic cardiac catheterization and these patients also underwent exercise TI-201 MPI. The sensitivity and specificity ofTI201 MPI studies were 92"1: and 83%, respectively, for DP; and 88% and 83%, respectively, for exercise 11-201 studies. Of the 100 patients studied, 44 had some adverse effects. Noncardiac side effects were transient and required no treatmentcardiac side effect, occurring in 24 patients, and ischemic electrocardiograpic changes were seen in 14 patients. Intravenous aminophylline (125 mg) was used in 13 patients to reverse these effects. No patient suffered myocardial infarction or severe arrhythymia, and none died. We concluded that TI-201 MPI after coronary vasodilation with intravenous dipyridamole is a safe and better noninvasive procedure for the evaluation of CAD in patients who are unable or not expected to achieve an adequate exercise level.
Description: Nuclear Medicine Department, King Saud University and King Khalid University Hospital, Riyadh
URI: http://hdl.handle.net/123456789/3720
Appears in Collections:King Khalid Hospital

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