European Journal of Cardiovascular Medicine

BACKGROUND This study was conducted to assess the contribution of MDCT (Multi-Detector Computed Tomography) contrast-enhanced coronary angiography to the clinical classification of benign and malignant coronary artery variations and abnormalities.  METHODS This was a descriptive observational cross-sectional study carried out in a hospital setting among 200 patients who underwent MDCT coronary angiography at Fortis Hospital, Noida, between August 2016 and March 2018. The institutional ethics committee approved the study, and participants' signed informed consent was acquired. RESULTS Of the 200 patients in our investigation, 76 had variants, accounting for 38% of the cohort. These variants included variations in the dominance pattern (20%), conus branch variants (3%), SA nodal branch variants (0.5%), and ramus intermedius variants (14.5%). In terms of origin and course anomalies, LAD (Left Anterior Descending) and LCX (Left Circumflex Artery) have different origins and there is no LMCA (Left Main Coronary Artery). Two individuals in our sample had ectopic LMCA at the level of the sino-tubular junction and above the junction with the retroarterial and interarterial courses, while one patient had missing LMCA. Two percent of the population had an anomalous origin from the opposite coronary sinus (n = 1). CONCLUSION With MDCT coronary angiography, coronary artery variations and anomalies are most accurately detected. With MDCT angiography, a number of malignant anomalies that are challenging to diagnose by ICA can be quickly found. When a patient is having interventional procedures like cardiac catheterization, coronary angioplasty, and stenting, having prior knowledge of various defects is helpful.