Association between Nonalcoholic Fatty Liver Disease at CT and Coronary Microvascular Dysfunction at Myocardial Perfusion PET/CT Coronary microvascular dysfunction was more prevalent (64.8% vs 43.4%; P < .001) and coronary flow reserve lower (1.9 vs 2.2; P < .001) in patients with nonalcoholic fatty liver disease compared with those who did not have nonalcoholic fatty liver disease. Men with nonalcoholic fatty liver disease had a higher risk of major adverse cardiac events (hazard ratio, 1.45; P = .008) as did patients with coronary microvascular disease (hazard ratio, 1.46; P = .04). Scatter plot of coronary microvascular dysfunction in patients with nonalcoholic fatty liver disease (NAFLD) and without NAFLD. CMD = coronary microvascular dysfunction. Vita T et al. Published Online: Mar 5, 2019 https://doi.org/10.1148/radiol.2019181793 Vita T et al. Published Online: Mar 5, 2019 https://doi.org/10.1148/radiol.2019181793