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관상동맥 질환 진단에서 ATP 부하 T1-201 심근 관류 SPECT 의 안전성과 유용성
배문선,박찬희,윤석남,김원,김한수 ( Moon Sun Pai,Chan H Park,Seok Nam Yoon Won Kim,Han Soo Kim ) 대한핵의학회 1998 핵의학 분자영상 Vol.32 No.3
Purpose: ATP (adenosine triphosphate) is a potent coronary vasodilator with a rapid onset of action and a very short half-life. Myocardial perfusion scintigraphy with intravenous ATP has not yet been sufficiently proven in the diagnosis, follow-up, and risk stratification of coronary artery disease. The purpose of this study was to evaluate the safety, feasibility and diagnostic accuracy of pharmacologic stress thallium-201 myocardial SPECT using an intravenous ATP infusion in patients with suspected coronary artery disease. Materials and Methods: Thalliurn-201 myocardial SPECT in 319 patients with suspected coronary artery disease were performed after the infusion of ATP (0.08 mg/kg/min for 6 rnin). The adverse effects were carefully monitored. Coronary angiography was also performed within 3 weeks. Results: Although 76.5% of the patients had sorne adverse effects, they were transient, mild, and well tolerated. In all patients, the ATP infusion protocol was completed and only 2 patients required aminophylline. The adverse effects were dyspnea in 63%, headache in 31%, flushing in 21%, chest pain in 14% and abdominal discomfort in 5% of the patients. The sensitivity and specificity were 80% and 90% respectively. Conclusion: Thallium-201 myocardial SPECT after 6 min-infusion of ATP at a rate of 0.08 mg/kg/min is safe and has a diagnostic value in detecting coronary artery disease. (Korean J Nucl Med 1998;32:250-8)