Lee J, et al. - The difference in body mass index between obese and normal weight individuals was examined by measuring the optimal point of maximal left ventricular diameter (OP^LV), using computed tomography (CT). Researchers retrospectively analyzed the chest CT scans between January 2012 and August 2016 and measured the sternal length and OPLV and estimated the ratio of OP^LV to that individual sternal length. In obese individuals, OP^LV on the sternum was noted to be more cranial than that in normal weight individuals. For chest compression, the optimal point in obese individuals could be slightly more cranial than that in the others.