ArticleCardiology journal2022
Agreement between Murray law-based quantitative flow ratio (μQFR) and three-dimensional quantitative flow ratio (3D-QFR) in non-selected angiographic stenosis: A multicenter study.
Article in Cardiology journal, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 1 of them a synthesis that pooled it.
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Who cites it
23 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Systematic review and meta-analysis of Murray's law in the coronary arterial circulation.American journal of physiology. Heart and circulatory physiology · 2024Pooled it
- VERMONT μQFR: Diagnostic Accuracy of Murray Law-Based 2D-μQFR Compared to 3D-μQFR and vFFR.Catheterization and cardiovascular interventions : official journal of the Society for Cardiac Angiography & Interventions · 2026Article
- Comparison of the clinical utility and diagnostic performance of Murray law-based quantitative flow ratio.Heart and vessels · 2026Article
- Beyond borderline physiology: determinants of treatment choice and phenotypes of outcome in QFR grey-zone lesions.Cardiovascular diagnosis and therapy · 2026Article
- Quantitative flow ratio for assessment of donor vessel in patients with chronic total occlusions.BMC cardiovascular disorders · 2026Article
- Fractional Flow Reserve Derived from a Single Angiographic View: Fact or Fiction?Medicina (Kaunas, Lithuania) · 2026Review
- Stepwise Assessment of Computational Coronary Physiology and Plaque Vulnerability: Impact on Coronary Revascularization Decision Making.JACC. Asia · 2026Article
- Fractional flow reserve calculation optimized by myocardial computed tomography perfusion information.Quantitative imaging in medicine and surgery · 2025Article
- Diagnostic Accuracy of Angiography-Derived Murray Law-Based Quantitative Flow Ratio (μQFR) Versus Pressure-Derived Fractional Flow Reserve (FFR) in Moderate to Severe Calcified Coronary Lesions-The DIAMOND Study.Catheterization and cardiovascular interventions : official journal of the Society for Cardiac Angiography & Interventions · 2025Observational
- Diagnostic performance of target vs. vessel μFR in stable coronary artery disease.BMC cardiovascular disorders · 2025Article
- Functional or anatomical assessment of non-culprit lesions in acute myocardial infarction.EuroIntervention : journal of EuroPCR in collaboration with the Working Group on Interventional Cardiology of the European Society of Cardiology · 2025Article
- Enhancing PCI Outcomes With Postprocedural Murray Law-Based Quantitative Flow Ratio: A Step Forward in Physiological Assessment.JACC. Asia · 2025Article
- Prognostic Value of Postpercutaneous Coronary Intervention Murray-Law-Based Quantitative Flow Ratio: Post Hoc Analysis From FLAVOUR Trial.JACC. Asia · 2025Article
- Development and validation of a novel angiography-derived index of absolute coronary blood flow and resistance.The international journal of cardiovascular imaging · 2024Article
- Role of physiology in the management of multivessel disease among patients with acute coronary syndrome.AsiaIntervention · 2024Review
- Impact of the use of plaque modification techniques on coronary microcirculation using an angiography-derived index of microcirculatory resistance.The international journal of cardiovascular imaging · 2024Article
- Diagnostic accuracy of Murray law-based quantitative flow ratio in patients with severe aortic stenosis undergoing transcatheter aortic valve replacement.Heart and vessels · 2024Article
- Murray law-based quantitative flow ratio for assessment of nonculprit lesions in patients with ST-segment elevation myocardial infarction.Cardiology journal · 2024Article
- Article
- Functional coronary angiography for the assessment of the epicardial vessels and the microcirculation.EuroIntervention : journal of EuroPCR in collaboration with the Working Group on Interventional Cardiology of the European Society of Cardiology · 2023Article
Corrections and comments
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10 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe agreement between single-projection Murray-based quantitative flow ratio (mQFR) and conventional three-dimensional quantitative flow ratio (3D-QFR) has not been reported hitherto.
methodsPatients from a multinational database were randomly selected for the study of agreement, according to sample size calculation. Both conventional 3D-QFR and mQFR were analyzed for all available arteries at a central corelab by independent analysts, blinded to each other's results.
resultsNinety-eight coronary arteries from 35 patients were finally analyzed. Median 3D-QFR was 0.82 (interquartile range 0.78-0.87). The intraclass correlation coefficient for the absolute agreement between 3D-QFR and mQFR was 0.996 (95% confidence interval [CI]: 0.993-0.997); Lin's coefficient 0.996 (95% CI: 0.993-0.997), without constant or proportional bias (intercept = 0 and slope = 1 in orthogonal regression). As dichotomous variable, there was absolute agreement between mQFR and 3D-QFR, resulting in no single false positive or negative. Kappa index was 1 and the diagnostic accuracy 100%.
conclusionsmQFR using a single angiographic projection showed almost perfect agreement with standard 3D-QFR. These results encourage the interchangeable use of mQFR and 3D-QFR, which can be interesting to improve QFR feasibility in retrospective studies, wherein appropriate double angiographic projections might be challenging to obtain.
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