Real-world clinical and cost analysis of CT coronary angiography and CT coronary angiography-derived fractional flow reserve (FFRCT)-guided care in the National Health Service

• Published in: Clinical radiology 2021-11, Vol.76 (11), p.862.e19-862.e28
• Main Authors: Graby, J., Metters, R., Kandan, S.R., McKenzie, D., Lowe, R., Carson, K., Hudson, B.J., Rodrigues, J.C.L.
• Format: Article
• Language: English
• Subjects: Computed Tomography Angiography - economics; Computed Tomography Angiography - methods; Coronary Angiography - economics; Coronary Angiography - methods; Coronary Stenosis - diagnostic imaging; Coronary Stenosis - economics; Coronary Stenosis - physiopathology; Costs and Cost Analysis - methods; Costs and Cost Analysis - statistics & numerical data; Female; Fractional Flow Reserve, Myocardial - physiology; Humans; Male; Middle Aged; Predictive Value of Tests; Retrospective Studies; Severity of Illness Index; State Medicine; United Kingdom
• ISSN: 0009-9260; 1365-229X
• DOI: 10.1016/j.crad.2021.06.009

To quantify the real-world clinical and cost impact of computed tomography (CT) coronary angiography (CTCA)-derived fractional flow reserve (FFRCT) in the National Health Service (NHS). Consecutive clinical CTCA examinations from September to December 2018 with ≥1 stenosis of ≥25% underwent FFRCT analysis. The Heart Team reviewed clinical data and CTCA findings, blinded to FFRCT values, and documented hypothetical consensus management. FFRCT results were then unblinded and hypothetical consensus management re-recorded. Diagnostic waiting times for management pathways were estimated. A per-patient cost analysis for diagnostic certainty regarding coronary artery disease (CAD) management was performed using 2014–2020 NHS tariffs for pre- and post-FFRCT pathways. Two hundred and fifty-one CTCAs were performed during the study period. Fifty-seven percent (145/251) had no CAD or stenosis