论文部分内容阅读
目的评价１８Ｆ脱氧葡萄糖（ＦＤＧ）ＰＥＴ心肌葡萄糖代谢与９９ｍＴｃ甲氧基异丁基异腈（ＭＩＢＩ）心肌灌注显像相结合对存活心肌的诊断价值。方法９０例临床确诊为陈旧性心肌梗塞（ＯＭＩ）患者，男８０例，女１０例，平均年龄５５８±９７岁。所有患者行心肌灌注显像和心肌代谢显像，均做超声心动图心功能测定，其中７６例做冠状动脉造影。血运重建术后，３６例复查超声心动图，测定心功能（Ａ组）；２４例复查心肌灌注显像及超声心动图（Ｂ组）。心肌代谢显像采用国产ＰＥＴＢ０３系统。结果９０例患者心肌灌注显像有３９７个灌注减低节段，结合代谢显像将其分为：灌注代谢不匹配（ＭＭ）节段２０２个，占５０９％，提示心肌存活（Ａ２和Ｂ２组）；心肌灌注代谢匹配（Ｍ）１３９个节段，占３５％，提示心肌梗塞（Ａ１和Ｂ１组）；灌注代谢部分不匹配（ＰＭ）５６个节段，占１４１％，提示心肌部分存活。１８ＦＦＤＧＰＥＴ心肌代谢显像与灌注显像相结合对室壁运动和心肌灌注改善的阳性预测值分别为８７５％（４２／４８）和８３８％（５７／６８），阴性预测值分别为７１４％（２５／３５）和８４６％（２２／２６），预测准确率分别为８００％和８４１％。以?
Objective To evaluate the diagnostic value of myocardial glucose metabolism in myocardial infarction with 18Fdeoxyglucose (FDG) PET myocardial perfusion imaging and 99mTcmethoxyisobutylisonitrile (MIBI) myocardial perfusion imaging. Methods Ninety clinically diagnosed patients with obstructive myocardial infarction (OMI), 80 were male and 10 were female, with an average age of 558 ± 97 years. All patients underwent myocardial perfusion imaging and myocardial metabolic imaging were done echocardiography cardiac function tests, of which 76 cases of coronary angiography. After revascularization, echocardiography was performed in 36 cases and cardiac function was measured in group A (A group). Twenty - four cases were reviewed myocardial perfusion imaging and echocardiography (group B). Myocardial metabolic imaging using domestic PET B03 system. Results There were 397 myocardial perfusion imaging lesion segments in 90 patients, which were divided into 202 segments (509%) of perfusion-metabolic mismatch (MM) segment by metabolic imaging, suggesting that myocardial viability (A2 and B2 group); myocardial perfusion-metabolism matching (M) 139 segments, accounting for 35%, suggesting myocardial infarction (A1 and B1 group); perfusion Metabolic partial mismatch (PM) 56 segments, accounting for 14.1% , Suggesting that the myocardial part of the survival. The positive predictive value of 18F-FDG PET myocardial perfusion imaging combined with perfusion imaging on wall motion and myocardial perfusion were 875% (42/48) and 838% (57/68), respectively. The negative predictive value Respectively 714% (25/35) and 846% (22/26), the prediction accuracy rates were 800% and 841% respectively. With?