【摘要】 研究再注射及晚期延迟²⁰¹T1心肌SPECT显像检测缺血存活心肌的价值。方法：47例冠心病患者进行了运动试验及运动一再分布．再注射．晚期延迟²⁰¹T1心肌显像，30例进行了冠状动脉造影。结果：运动心电图试验阳性率57.4％，运动一再分布心肌显像检出心肌缺血率80.1％（P＜0.01）。心肌节段分析，35个（35.7％）在再分布影像上呈不可逆缺损的节段在再注射影像上有再分布。9个（14．2％）在再注射影像上呈不可逆缺损的节段在晚期延迟影像上有再分布。结论：再注射及晚期延迟²⁰¹T1心肌显像检测缺血存活心肌优于运动心电图试验及运动－再分布心肌显像。更多还原

【Abstract】 Objective: To study the value of reinjection of thallium-201 and late delayed after reinjection myocardial imaging for detecting ischemic but viable myocardium. Methods: 47 patients with coronary artery disease underwent submaximal bicycle exercise test and stress-redistribution- reinjection-late delayed after reinjection thallium-201 myocardial SPECT imaging. 30 patients underwent coronary artery angiography.Results: Stress ECG test was positive in 57. 4 %, Stress-redistribution imaging detected ischemia in 80. 1% (P< 0. 01). Myocardial segment analysis showed that 35 (35. 7%) irreversible defects in redistribution image were reversible in reinjection image, 9 (14. 2% ) irreversible defects both in redisttibution and reinjection image were reversible in late delayed image after reinjection. Conclusion: In detection of ischemic but viable myocardium, reinjection and late delayed after reinjection thallium-201 myocardial SPECT imaging are superior to stress ECG test and stress-redistribution thallium myocardial imaging.更多还原