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Measuring Absolute Coronary Flow andMicrovascular Resistance byThermodilution: JACCReview Topic of the Week. Journal of the American College of Cardiology Belmonte, M., Gallinoro, E., Pijls, N. H., Bertolone, D. T., Keulards, D. C., Viscusi, M. M., Storozhenko, T., Mizukami, T., Mahendiran, T., Seki, R., Fournier, S., de Vos, A., Adjedj, J., Barbato, E., Sonck, J., Damman, P., Keeble, T., Fawaz, S., Gutierrez-Barrios, A., Paradies, V., Bouisset, F., Kern, M. J., Fearon, W. F., Collet, C., De Bruyne, B. 2024; 83 (6): 699-709

Abstract

Diagnosing coronary microvascular dysfunction remains challenging, primarily due to the lack of direct measurements of absolute coronary blood flow (Q) and microvascular resistance (Rmu). However, there has been recent progress with the development and validation of continuous intracoronary thermodilution, which offers a simplified and validated approach for clinical use. This technique enables direct quantification of Q and Rmu, leading to precise and accurate evaluation of the coronary microcirculation. To ensure consistent and reliable results, it is crucial to follow a standardized protocol when performing continuous intracoronary thermodilution measurements. This document aims to summarize the principles of thermodilution-derived absolute coronary flow measurements and propose a standardized method for conducting these assessments. The proposed standardization serves as a guide to ensure the best practice of the method, enhancing the clinical assessment of the coronary microcirculation.

View details for DOI 10.1016/j.jacc.2023.12.014

View details for PubMedID 38325996