Image Selection
Clinically indicated CCTAs previously performed at Temple University
Hospital from September 2016 to December 2020 were reviewed. Patients
were excluded if the imaging study was inadequate for visualization of
the septal perforator artery or right ventricular (RV) apex. Patients
with prior coronary artery bypass grafting (CABG) were also excluded to
minimize effects of grafting on the localization of the first septal
perforator artery.