Results 1 to 10 of about 643,214 (199)

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   +4 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

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

Diagnostic Performance of Angiography-Derived Quantitative Flow Ratio: A Systematic Review and Meta-Analysis [PDF]

Medical Sciences
Background: Quantitative flow ratio (QFR) is a novel technology to assess the functional significance of coronary stenoses based on standard coronary angiography, which can be alternatives to invasive fractional flow reserve (FFR) assessment.
Guo Huang, Pu Ge, He Zhu, Sheng Han, Luwen Shi   +4 more
doaj   +2 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   +3 more sources

Quantitative flow ratio for assessment of donor vessel in patients with chronic total occlusions [PDF]

BMC Cardiovascular Disorders
Background Chronic total occlusion (CTO) is a challenging subset of coronary artery disease characterized by complete vessel obstruction and development of collateral circulation. In CTO patients, donor vessels supplying collateral flow may be at risk of
Xinjian Li, Juntao Duan, Lin Mi, Liyuan Tao, Xinye Xu, Guisong Wang   +5 more
doaj   +2 more sources

Sex Differences in Murray Law‐Based Quantitative Flow Ratio Among Patients With Intermediate Coronary Lesions

Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2023
Background The Murray law‐based quantitative flow ratio (μQFR) is a novel technique that simulates fractional flow reserve (FFR) from a single angiographic view.
Wenjie Zuo, Renhua Sun, Zhenjun Ji, Pengfei Zuo, Xiaoguo Zhang, Rong Huang, Zaixiao Tao, Shengxian Tu, Yongjun Li, Genshan Ma   +9 more
doaj   +3 more sources

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

Biomedicines
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   +2 more sources

Correlation and Relative Prognostic Power of Post–Percutaneous Coronary Intervention Fractional Flow Reserve and Quantitative Flow Ratio [PDF]

Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease
Background Post–percutaneous coronary intervention (PCI) fractional flow reserve (FFR) is an established method to evaluate the functional result of angiographically successful PCI; however, it is rarely measured.
Bettina Csanádi, Tamás Ferenci, Róbert Gál, Noémi Bora, Zsolt Piróth   +4 more
doaj   +2 more sources

Murray law-based quantitative flow ratio versus invasive fractional flow reserve in the left anterior descending coronary artery: impact of hydrostatic pressure correction and clinical implications [PDF]

Frontiers in Cardiovascular Medicine
BackgroundInvasive fractional flow reserve (FFR) is the gold standard for guiding coronary revascularization. Angiography-derived FFR techniques such as the quantitative flow ratio (QFR) provide a less invasive alternative.
András Ágoston, András Ágoston, Ádám Piricsi, Bettina Szekeres, Mátyás Magyari, Balázs Tar, Gábor T. Szabó, Gábor T. Szabó, Csaba A. Dézsi, Csaba A. Dézsi, Zsolt Piroth, Zoltán Ruzsa, Gábor G. Tóth, Shengxian Tu, Zsolt Kőszegi, Zsolt Kőszegi, Zsolt Kőszegi   +16 more
doaj   +2 more sources