Results 1 to 10 of about 629,977 (133)

Correlation and Agreement of Quantitative Flow Ratio With Fractional Flow Reserve in Saphenous Vein Grafts [PDF]

Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease
Background The applicability of quantitative flow ratio (QFR), a nonhyperemic, invasive coronary angiography‐derived computation of fractional flow reserve (FFR), has not been studied in coronary artery bypass grafts. We sought to explore the correlation
Ruben W. de Winter, Yvemarie B. O. Somsen, Roel Hoek, Pepijn A. van Diemen, Ruurt A. Jukema, Mathé P. Jonker, Albert C. van Rossum, Jos W. R. Twisk, Rolf A. Kooistra, Jasper Janssen, Sina Porouchani, Adriaan Wilgenhof, Niels J. Verouden, Ibrahim Danad, Johan H. C. Reiber, Alexander Nap, Paul Knaapen   +16 more
doaj   +7 more sources

Prognostic Role of Functional SYNTAX Score Based on Quantitative Flow Ratio [PDF]

Biomedicines, 2022
Background/Objectives: The quantitative flow ratio (QFR)-based functional Synergy Between Percutaneous Coronary Intervention with Taxus and Cardiac Surgery (SYNTAX) score (FSSQFR) combines coronary arteries’ anatomy and physiology.
Dimitrios Terentes-Printzios, Konstantia-Paraskevi Gkini, Dimitrios Oikonomou, Vasiliki Gardikioti, Konstantinos Aznaouridis, Ioanna Dima, Konstantinos Tsioufis, Charalambos Vlachopoulos   +7 more
doaj   +5 more sources

Diagnostic Agreement of Quantitative Flow Ratio With Fractional Flow Reserve and Instantaneous Wave‐Free Ratio

Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2019
Background Quantitative flow ratio (QFR) has a high diagnostic accuracy in assessing functional stenoses relevance, as judged by fractional flow reserve (FFR). However, its diagnostic performance has not been thoroughly evaluated using instantaneous wave‐
Doyeon Hwang, Ki Hong Choi, Joo Myung Lee, Hernán Mejía‐Rentería, Jihoon Kim, Jonghanne Park, Tae‐Min Rhee, Ki‐Hyun Jeon, Hyun‐Jong Lee, Hyun Kuk Kim, Taek Kyu Park, Jeong Hoon Yang, Young Bin Song, Eun‐Seok Shin, Chang‐Wook Nam, Jae‐Jin Kwak, Joon‐Hyung Doh, Joo‐Yong Hahn, Jin‐Ho Choi, Seung‐Hyuk Choi, Javier Escaned, Bon‐Kwon Koo, Hyeon‐Cheol Gwon   +22 more
doaj   +5 more sources

Overview of Quantitative Flow Ratio and Optical Flow Ratio in the Assessment of Intermediate Coronary Lesions

US Cardiology Review, 2020
Fractional flow reserve (FFR)-guided percutaneous coronary intervention (PCI) improves clinical outcome compared with angiography-guided PCI. Advances in computational technology have resulted in the development of solutions, enabling fast derivation of ...
Jelmer Westra, Shengxian Tu
doaj   +4 more sources

The Quantitative Flow Ratio Uncertainty‐Zone: Finding Certainty Within Uncertainty [PDF]

Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease
Warren Tai, Samit M. Shah, Rushi V. Parikh   +2 more
doaj   +4 more sources

Residual Quantitative Flow Ratio to Estimate Post‐Percutaneous Coronary Intervention Fractional Flow Reserve [PDF]

Journal of Interventional Cardiology, 2021
Objectives. Quantitative flow ratio (QFR) computes fractional flow reserve (FFR) based on invasive coronary angiography (ICA). Residual QFR estimates post‐percutaneous coronary intervention (PCI) FFR.
Pepijn A. van Diemen, Ruben W. de Winter, Stefan P. Schumacher, Michiel J. Bom, Roel S. Driessen, Henk Everaars, Ruurt A. Jukema, Yvemarie B. Somsen, Lenka Popelkova, Peter M. van de Ven, Albert C. van Rossum, Tim P. van de Hoef, Stefan de Haan, Koen M. Marques, Jorrit S. Lemkes, Yolande Appelman, Alexander Nap, Niels J. Verouden, Maksymilian P. Opolski, Ibrahim Danad, Paul Knaapen   +20 more
doaj   +3 more sources

Ultrasonic flow ratio versus Murray law-based quantitative flow ratio for predicting target vessel failure after IVUS-guided PCI [PDF]

Frontiers in Cardiovascular Medicine
Residual ischemia after percutaneous coronary intervention (PCI) is closely associated with adverse clinical outcomes. Murray law-based quantitative flow ratio (μQFR), derived from coronary angiography, has demonstrated prognostic value after PCI ...
Jingao Jiang, Ziyi Yan, Wenhao Huang, Shumin Lv, Xiaochang Leng, Tingting Chen, Wei Mao, Changqing Du   +7 more
doaj   +2 more sources

Fractional flow reserve, quantitative flow ratio, and instantaneous wave-free ratio: a comparison of the procedure-related dose of ionising radiation [PDF]

Advances in Interventional Cardiology, 2021
The development of interventional cardiology increases the number of invasive procedures which are inevitably associated with increased exposure to ionizing radiation and associated risks. A percutaneous coronary intervention (PCI) substantiated by evaluation of the coronary artery lesion's functional significance is recommended by both European and ...
Greta Ziubryte, Gediminas Jarusevicius
doaj   +3 more sources

Exploring the Predictors of the Discrepancy Between Quantitative Flow Ratio and Fractional Flow Reserve Measurements

Anatolian Journal of Cardiology, 2023
Background: Quantitative flow ratio is a novel technology for the functional assessment of intermediate coronary stenoses. The authors sought to explore the influence of diabetes mellitus on the application of quantitative flow ratio and predictors of ...
Tianhui Dong, Li Zhou, Xuhe Gong, Longhui Ma, Yutian Bai, Hui Chen   +5 more
doaj   +3 more sources

Precise intervention of drug-coated balloons based on quantitative flow ratio: treatment efficacy and virtual planning adaptability evaluation [PDF]

BMC Cardiovascular Disorders
Objective To evaluate the efficacy of drug-coated balloon (DCB) treatment for coronary artery stenosis guided by quantitative flow ratio (QFR) and the clinical applicability of virtual balloon planning.
Qingmin Zhou, Xinyuan Zhao, Hangzhou Luo
doaj   +2 more sources