Evaluation of the Spectrum of Imaging Findings in Patients Undergoing Coronary Computed Tomographic Angiography

Abstract

Introduction: Coronary artery disease (CAD) remains a leading global cause of morbidity and mortality. Coronary computed tomographic angiography (CCTA) is a non-invasive imaging modality that effectively visualizes coronary anatomy, detecting stenosis, plaques, and anomalies. Its high sensitivity and negative predictive value make it suitable for ruling out CAD in patients with low to intermediate risk. The aim of the study is to evaluate the spectrum of imaging findings in patients undergoing coronary computed tomographic angiography and to correlate the findings of coronary computed tomographic angiography with catheter coronary angiography in patients who are undergoing catheter angiography. Material and Methods: This prospective study involved 100 patients undergoing CCTA at SRMSIMS, Bareilly. Findings were analyzed for coronary stenosis, plaque types, anomalies, and other abnormalities. CCTA results were compared with ICA to determine diagnostic accuracy. Results: Coronary stenosis was the most frequent finding, with LAD most commonly affected. CCTA demonstrated 100% sensitivity for LM, LAD, LCX, and RCA. Specificity was 100% for LM, LAD, and RCA, but lower (66.6%) for LCX. Several anomalies, including ectopic origin and congenital absence of LCX, were noted. Conclusion: CCTA is a highly sensitive, non-invasive tool for detecting CAD and coronary anomalies. However, its accuracy may be reduced in patients with high coronary calcium, highlighting the importance of patient selection.