Tips and Tricks for Interpreting Coronary CT Angiography – Part 2: Accurate Assessment of Stenosis Severity
Abstract
Accurate quantification of coronary stenosis on coronary CT angiography (CCTA) is essential for appropriate risk stratification and clinical decision-making, yet several technical and interpretative pitfalls can compromise diagnostic accuracy. This second part of a two-part review examines common factors that lead to overestimation or underestimation of stenosis severity, with attention to how these errors influence CAD-RADS categorization, downstream testing, and patient management. Using case-based examples, we describe key contributors to misinterpretation and present practical strategies to mitigate these pitfalls. By recognizing these nuances and employing a structured, standardized interpretive approach, readers can minimize errors in stenosis assessment and enhance the reliability of CCTA as a noninvasive tool for evaluating coronary artery disease.
Fields of Study & Subjects
Cardiac Imaging and Diagnostics
Coronary Interventions and Diagnostics
Coronary Artery Anomalies
Publication details
- Journal / source
- Canadian Association of Radiologists Journal
- Publisher
- SAGE Publications
- Volume
- 77
- Issue
- 3
- Pages
- 579–593
- Publication date
- 15 February 2026
- Language
- EN