CAD-RADS – a new clinical decision support tool for coronary computed tomography angiography
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Coronary computed tomography angiography (CTA) has been established as an accurate method to non-invasively assess coronary artery disease (CAD). The proposed ‘Coronary Artery Disease Reporting and Data System’ (CAD-RADS) may enable standardised reporting of the broad spectrum of coronary CTA findings related to the presence, extent and composition of coronary atherosclerosis. The CAD-RADS classification is a comprehensive tool for summarising findings on a per-patient-basis dependent on the highest-grade coronary artery lesion, ranging from CAD-RADS 0 (absence of CAD) to CAD-RADS 5 (total occlusion of a coronary artery). In addition, it provides suggestions for clinical management for each classification, including further testing and therapeutic options. Despite some limitations, CAD-RADS may facilitate improved communication between imagers and patient caregivers. As such, CAD-RADS may enable a more efficient use of coronary CTA leading to more accurate utilisation of invasive coronary angiograms. Furthermore, widespread use of CAD-RADS may facilitate registry-based research of diagnostic and prognostic aspects of CTA.
• CAD-RADS is a tool for standardising coronary CTA reports.
• CAD-RADS includes clinical treatment recommendations based on CTA findings.
• CAD-RADS has the potential to reduce variability of CTA reports.
KeywordsCoronary artery disease Computed tomography angiography Coronary stenosis Classification Percutaneous coronary intervention
Abbreviations and acronyms
Acute coronary syndrome
Coronary artery bypass graft
Coronary artery disease
Coronary artery disease – Reporting and Data System
Computed tomography angiography
Fractional flow reserve
Left anterior descending
National Institute for Health and Care Excellence
Right coronary artery
Society of Cardiovascular Computed Tomography
Thrombolysis in myocardial infarction
Borek Foldyna received funding from the German Research Foundation (DFG), project 290004377 (FO 993/1).
Compliance with ethical standards
The scientific guarantor of this publication is Borek Foldyna, MD.
Conflict of interest
The authors of this manuscript declare no relationships with any companies whose products or services may be related to the subject matter of the article.
Statistics and biometry
No complex statistical methods were necessary for this paper.
Written informed consent was obtained from all three patients for the anonymised image data use.
Institutional Review Board approval was not required for this special report.
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