High-risk plaque characteristics on coronary computed tomography angiography (CCTA) were reported to be associated with periprocedural myocardial injury (PMI) after elective percutaneous coronary intervention (PCI).1 However, the binary categorization of low-attenuation plaque (LAP) based on visual assessment lacks spatial information. Here, we introduced a new LAP index, “peak x-mm LAP volume (peakLAPxmm),” which accounts for the size and density of LAP voxels. We aimed to develop a PMI predict…