Key result
Quantitative flow ratio provides a safe, cost-effective, and less invasive alternative that correlates well with fractional flow reserve for the functional assessment of intermediate coronary stenosis without requiring a pressure wire.
Why the study?
Technical shortcomings have slowed the worldwide adoption of FFR into clinical practice, prompting the evaluation of alternatives such as quantitative flow ratio (QFR).
QFR is a promising, less invasive, and cost-effective angiographic technique that correlates well with FFR for the functional evaluation of coronary stenosis.
ZĂĄvaĹžnost koronĂĄrnĂch lĂŠzĂ vĹždy pĹedstavovala vĂ˝znamnĂ˝ aspekt pĂŠÄe o pacienty bÄhem koronarografickĂŠho vyĹĄetĹenĂ. Je prokĂĄzĂĄno, Ĺže lĂŠÄba vedenĂĄ na zĂĄkladÄ hodnot frakÄnĂ prĹŻtokovĂŠ rezervy (fractional flow reserve, FFR) mĂĄ pozitivnĂ vliv na klinickĂ˝ vĂ˝slednĂ˝ stav pacienta. ZavĂĄdÄnĂ FFR do klinickĂŠ praxe v celosvÄtovĂŠm mÄĹĂtku nicmĂŠnÄ zpomalily zĂĄvaĹžnĂŠ technickĂŠ nedostatky. V poslednĂ dobÄ byla pĹedstavena a v klinickĂŠm vĂ˝zkumu ovÄĹovĂĄna jinĂĄ kritĂŠria, jako napĹĂklad kvantitativnĂ pomÄr prĹŻtokĹŻ (quantitative flow ratio, QFR). Podle jednĂŠ studie pouĹžĂvajĂcĂ vĂ˝poÄetnĂ mechaniku tekutin a plynĹŻ koreluje QFR s hodnotami FFR a ve srovnĂĄnĂ s jinĂ˝mi metodami ĹĄetĹĂ Äas i penĂze. QFR pĹedstavuje novou angiografickou metodu, kterĂĄ pomocĂ modernĂho softwaru provĂĄdĂ trojrozmÄrnou rekonstrukci cĂŠv a vytvĂĄĹĂ modely prĹŻtoku. JednĂĄ se tedy o technicky vyspÄlou metodu a o modernĂ, ĂşÄinnĂ˝ a praktickĂ˝ nĂĄstroj pro hodnocenĂ koronĂĄrnĂch lĂŠzĂ. CĂlem tohoto pĹehledu bylo prozkoumat oblasti pĹĂpadnĂŠho vyuĹžitĂ QFR v klinickĂŠ praxi. © 2022, ÄKS.
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Aşkın et al. (2022) conducted a review in Coronary stenosis. Quantitative Flow Ratio (QFR) vs. Fractional Flow Reserve (FFR) was evaluated. Quantitative flow ratio provides a safe, cost-effective, and less invasive alternative that correlates well with fractional flow reserve for the functional assessment of intermediate coronary stenosis without requiring a pressure wire.
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