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静息心肌灌注显像判断梗塞相关动脉的作用
引用本文:川玲,朱家瑞,赵文锐,卢殿峰,许根祥,王新强,魏威.静息心肌灌注显像判断梗塞相关动脉的作用[J].中华核医学杂志,2002,22(2):95-96.
作者姓名:川玲  朱家瑞  赵文锐  卢殿峰  许根祥  王新强  魏威
作者单位:100037,北京,海军总医院核医学科
摘    要:目的 评价静息心肌显像的缺血缺损部位对于判断梗塞相关动脉 (IRA)的价值。方法对 44例心肌梗死患者进行99Tcm 甲氧基异丁基异腈 (MIBI)静息心肌断层显像和冠状动脉造影(CAG)。结果 CAG提示IRA 44支 ,其中左前降支 (LAD) 2 7支 ,左旋支 (LCX) 9支 ,右冠脉 (RCA) 8支。当IRA是LAD时出现间壁受累 ,IRA是LCX时出现侧壁受累和IRA是RCA时表现下后壁受累的意义较大 (χ2 =8.98和 8.96 ,P均 <0 .0 5 ;χ2 =43.82 ,P <0 .0 0 5 )。前壁、心尖部、间壁和广泛前壁稀疏缺损对于判断IRA LAD的灵敏度较高 ,分别是 89% ,86 % ,80 %和 89% ;特异性以间壁最高 ,达 80 % ;侧壁和后侧壁判断IRA LCX的灵敏度和特异性分别是 75 % ,6 7%和 85 % ,83% ;下后壁病变判断IRA RCA的灵敏度和特异性分别是 71%和 91%。结论 心肌灌注显像对于判断心肌梗死的IRA有一定价值

关 键 词:静息心肌灌注显像  梗塞相关动脉  心肌梗塞  梗死部位  冠状动脉造影术  ^99Tc^m-甲氧基异丁基异腈  ^99Tc^m-MIBI
修稿时间:2001年6月3日

Evaluation of the role of infarct_related artery in myocardial infarction by resting myocardial perfusion imaging
CHUAN Ling,ZHU Jiarui,ZHAO Wenrui,et al..Evaluation of the role of infarct_related artery in myocardial infarction by resting myocardial perfusion imaging[J].Chinese Journal of Nuclear Medicine,2002,22(2):95-96.
Authors:CHUAN Ling  ZHU Jiarui  ZHAO Wenrui  
Institution:CHUAN Ling,ZHU Jiarui,ZHAO Wenrui,et al. Department of Nuclear Medicine,Navy General Hospital,Beijing 100037,China
Abstract:Objective Resting myocardial perfusion tomographic imaging with 99Tc m-MIBI for the assessment of infarct-related artery (IRA)in a group of myocardial infarction patients. Methods Forty-four cases with myocardial infarction were studied. Resting 99Tc m-MIBI myocardial perfusion imaging plus coronary angiography were performed. Results There were 44 IRA including anterior descending branches (LAD) 27(61.4%), left circumflex branches (LCX) 9(20.5%) and right coronary artery branches (RCA)8 (18.2%) involved. The sensitivity of anterior wall and extend anterior wall defects of left ventricular in detecting IRA was 89% and 89%,respectively. The septum wall defects had specificity of 80% for evaluation IRA-LAD. The lateral wall and postero-lateral wall defects had the sensitivity and specificity of 75%, 67%, 85%and 83% for determining IRA-LCX, respectively. The infero-posterior wall defects had a sensitivity of 71%, a specificity of 91% for diagnosis of IRA-RCA. Conclusions Resting myocardial perfusion imaging is an accurate method for the diagnosis and localization of IRA in patients with myocardial infarction. The technique provides a high specificity and sensitivity for the diagnosis of IRA.
Keywords:Myocardial infarction  Tomography  emission-computed  single-photon  MIBI  Coronary angiography
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