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69%,陰性預(yù)測(cè)值為 89%。 ?靜態(tài) 再分布心肌顯像 常規(guī)運(yùn)動(dòng) 再分布心肌顯像: 201鉈( TL)單光子斷層( 201TL SPECT)心肌顯像 細(xì)胞膜完整識(shí)別 RV LV RA LA LV LA 存活心肌 MRI 延遲高強(qiáng)化 Courtesy of Dr. Thomas Gerber time 正常心肌 缺血心肌 首次通過(guò) 延遲強(qiáng)化 Gad injection 梗死心肌 Courtesy of Dr. Thomas Gerber MRI 延遲高強(qiáng)化 機(jī)制 Gd Gd Na Na Na Na Na Na Na Gd Gd Gd Gd Gd Gd Gd Na Gd Gd Gd Gd Gd Gd Na Na Na Na Na K K K K K K K K K K Na Na Na Na intact cell membrane (viable myocardium) ruptured cell membrane (acute infarction) collagen matrix (chronic infarction) Na Na Na Na Na Na Gd Na Gd Gd Gd Gd Gd MRI 延遲高強(qiáng)化機(jī)制 Courtesy of Dr. Ray Kim PET vs ceCMR Diagnostic Accuracy Sensitivity Specificity n = 29 patients Mean LVEF = 32177。 10% Adapted from K252。hl et al. Eur Heart J 2020。27:84653. PET vs ceMRI Viable Myocardium Adapted from K252。hl et al. Eur Heart J 2020。27:84653. Prerevasc LVEF 25% Postrevasc LVEF 45% 64排 CT 對(duì)比劑延遲強(qiáng)化 Baks et al AJR:188, 2020 n=6 pigs 6