DETECTION OF CORONARY ARTERY ANAMOLIES AND VARIANTS USING CORONARY COMPUTED TOMOGRAPHY ANGIOGRAPH

Abstract

Objective: To determine the frequency of Coronary artery anomalies using coronary CT angiography.

Study Design: Cross sectional study. Place and Duration of Study: Armed Forces Institute of Cardiology and National Institute of Heart Diseases (AFIC/NIHD), from Aug 2014 to Apr 2015.

Methodology: After fulfilling ethical criteria, all consecutive patients of either gender who were referred for CCTA were included. CCTA was carried out using a 64-MSCT scanner after IV injection of non-ionic contrast mediums. The scan field was extended from the proximal aorta to the cardiac apex. Retrospective ECG-gated images were obtained. Both coronary arteries were evaluated at different phases of cardiac cycle.

Results: Our data shows that mean age as 51.19 ± 12.47 years, 982 (80.89%) male and 232 (19.11%) females, frequency of coronary anomalies were 89 (7.33%). Muscle bridging in mid-course and distal segment of LAD were the most common type.

Conclusion: The frequency of Coronary artery anomalies is higher in patients undergoing CTCA for any indication. However, it is required that every patient undergoing CTCA should also be screened for coronary artery anomaly. Some other studies in local population are also required to validate our findings.