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Minerva Cardiology and Angiology 2021 Mar 11

DOI: 10.23736/S2724-5683.20.05486-9


language: English

From anatomy to function and then back to anatomy: invasive assessment of myocardial ischaemia in the catheterization laboratory based on anatomy-derived indices of coronary physiology

Giovanni L. DE MARIA 1 , Samuel WOPPERER 2, Rafail KOTRONIAS 1, Mayooran SHANMUGANATHAN 1, Roberto SCARSINI 1, 3, Dimitrios TERENTES-PRINTZIOS 1, Adrian P. BANNING 1, Hector M. GARCIA-GARCIA 2

1 Oxford Heart Centre, John Radcliffe Hospital, Oxford University Hospitals, NHS Foundation Trust, Oxford, UK; 2 MedStar Washington Hospital Centre, Interventional Cardiology Department, Washington, DC, USA; 3 Division of Cardiology, Department of Medicine, University of Verona, Verona, Italy


For many decades, the severity of coronary artery disease (CAD) and the indication to proceed with either percutaneous coronary intervention (PCI) or surgical revascularization has been based on anatomically derived parameters of vessel stenosis, and typically on the percentage of lumen diameter stenosis (DS%) as determined by invasive coronary angiography (CA). However, it is currently a well-accepted concept that pre-specified thresholds of DS% have a weak correlation with the ischaemic and functional potential of an epicardial coronary stenosis. In this regard, the introduction of fractional-flow reserve (FFR) has represented a paradigm-shift in the understanding, diagnosis, and treatment of CAD, but the adoption of FFR into the clinical practice remains surprisingly limited and sub-standard, probably because of the inherent drawbacks of pressure-wirebased technology such as additional costs, prolonged procedural time, invasive instrumentation of the target vessel, and use of vaso-dilatory agents causing side effects for patients. For this reason, new modalities are under development or validation to derive FFR from computational fluid dynamics (CFD) applied to a three-dimensional model (3D) of the target vessel obtained from CA, intravascular imaging, or coronary computed tomography angiography. The purpose of this review is to describe the technical details of these anatomy-derived indices of coronary physiology with a special focus on summarizing their workflow, available evidence, and future perspectives about their application in the clinical practice.

KEY WORDS: Myocardial ischaemia; Fractional flow reserve; Computational flow dynamics; Coronary angiography; Intravascular imaging

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