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目的 探讨99Tcm 甲氧基异丁基异腈 (MIBI)心肌显像在检测“罪犯”血管中的价值。方法 选择冠状动脉造影证实有多支血管病变并成功进行经皮冠状动脉腔内成形术 (PTCA)等血流重建治疗的冠心病患者 46例 ,PTCA术前进行运动、静息、静脉滴注硝酸甘油介入99Tcm MIBI心肌显像 ,明确缺血与存活心肌量最多的部位 ,以对应支配该部位的病变血管确定为“罪犯”血管。以术后疗效为标准 ,验证其准确性。结果 46例中 ,冠状动脉造影发现病变血管 10 7支 ,心肌显像确定“罪犯”血管 46支。临床对确定的“罪犯”血管进行相应的血流重建治疗 ,随访均有良好疗效。结论 运动、静息、静脉滴注硝酸甘油介入99Tcm MIBI心肌显像检测“罪犯”血管准确可靠 ,实用可行
Objective To investigate the value of 99Tcm myocardial isobutyl isonitrile (MIBI) myocardial imaging in the detection of “criminals” blood vessels. Methods Forty-six patients with coronary heart disease who underwent coronary angiography to confirm the presence of multivessel disease and were successful in the reconstruction of blood flow such as percutaneous transluminal coronary angioplasty (PTCA) were included in the study. Before exercise PTCA, exercise, rest and intravenous infusion of nitric acid Glycerol interventional 99Tcm MIBI myocardial imaging, clear ischemic and survival of the largest part of the myocardium, in line with the control of the site of the lesion vessels identified as “criminals” blood vessels. To postoperative efficacy as a criterion to verify its accuracy. Results 46 cases, coronary artery angiography lesion found in 107 vessels, myocardial imaging to determine the “culprit” vessels 46. Clinically determine the “criminals” blood vessels corresponding to the reconstruction of blood flow, follow-up has a good effect. Conclusions Exercise, resting and intravenous nitroglycerin interventional 99Tcm MIBI myocardial imaging detection of “criminals” blood vessels is accurate and reliable, practical and feasible