Impact of Pressure Guidewire on Model-Based FFR Prediction.
- Resource Type
- Academic Journal
- Authors
- Lucca A; Department of Mathematics, University of Trento, Via Sommarive, 14, 38123, Trento, Italy. alessia.lucca@unitn.it.; Fraccarollo L; DICAM, University of Trento, Trento, Italy.; Fossan FE; Department of Structural Engineering, Norwegian University of Science and Technology, Trondheim, Norway.; Bråten AT; Department of Cardiology, Norwegian University of Science and Technology, Trondheim, Norway.; Pozzi S; MOX, Dipartimento di Matematica, Politecnico di Milano, Milan, Italy.; Vergara C; LABS, Dipartimento di Chimica, Materiali e Ingegneria Chimica 'Giulio Natta', Politecnico di Milano, Milan, Italy.; Müller LO; Department of Mathematics, University of Trento, Via Sommarive, 14, 38123, Trento, Italy.
- Source
- Publisher: Springer Country of Publication: United States NLM ID: 101531846 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1869-4098 (Electronic) Linking ISSN: 1869408X NLM ISO Abbreviation: Cardiovasc Eng Technol Subsets: MEDLINE
- Subject
- Language
- English
Introduction: Fractional Flow Reserve (FFR) is used to characterize the functional significance of coronary artery stenoses. FFR is assessed under hyperemic conditions by invasive measurements of trans-stenotic pressure thanks to the insertion of a pressure guidewire across the coronary stenosis during catheterization. In order to overcome the potential risk related to the invasive procedure and to reduce the associated high costs, three-dimensional blood flow simulations that incorporate clinical imaging and patient-specific characteristics have been proposed.
Purpose: Most CCTA-derived FFR models neglect the potential influence of the guidewire on computed flow and pressure. Here we aim to quantify the impact of taking into account the presence of the guidewire in model-based FFR prediction.
Methods: We adopt a CCTA-derived FFR model and perform simulations with and without the guidewire for 18 patients with suspected stable CAD.
Results: Presented results show that the presence of the guidewire leads to a tendency to predict a lower FFR value. The FFR reduction is prominent in cases of severe stenoses, while the influence of the guidewire is less pronounced in cases of moderate stenoses.
Conclusion: From a clinical decision-making point of view, including of the pressure guidewire is potentially relevant only for intermediate stenosis cases.
(© 2024. The Author(s).)