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自1981年研究锝标记心肌灌注显像以来,应用最多、最有前途的是~(99m)锝六碳-2-甲氧基-2-异丁基—异己腈(MIBI)(RP-30A)。在负荷和静息状态下进行 RP-30A单光子发射计算机断层(SPECT)显像,同冠(状动)脉造影,~(201)铊 SPECT 显像比较如下。方法 39(男性26、女性13)例患者接受冠脉造影和运动~(201)铊、RP-30A 显像的检查。运动试验前继续使用抗心绞痛药物,两次运动试验间剂量不变。无一例曾行冠脉旁路移植或经皮穿刺冠脉成形术。冠脉的主支或其分支内径狭窄≥50%,判为冠脉狭窄。28例存在明显的冠脉病变(CAD),11例冠脉正常
Since the study of technetium-labeled myocardial perfusion imaging in 1981, the most promising and promising method is 99m-technetium-6-methoxy-2-isobutyl-isocapronitrile (MIBI) . RP-30A single-photon emission computed tomography (SPECT) imaging, coronary angiography and ~ (201) thallium SPECT imaging were performed under load and resting conditions as follows. METHODS: Thirty-nine patients (26 males and 13 females) underwent coronary angiography and exercise examinations of ~ (201) Thallium and RP-30A imaging. Continue to use anti-angina drugs before exercise test, and keep the same dose between the two exercise tests. None of them had coronary artery bypass grafting or percutaneous coronary angioplasty. The main branch of the coronary artery or its branches diameter ≥ 50%, for the coronary stenosis. 28 cases of significant coronary artery disease (CAD), 11 cases of normal coronary artery