Results 111 to 120 of about 3,607,366 (207)

Impact of the lesion location on fractional flow reserve

, 2009
Introduction - Fractional flow reserve (FFR) is a method to determine the significance of a lesion. Although an FFR measurement of < 0.75 is accepted to show ischaemia, the effect of the location of the lesion on the coronary artery is not known.
Ozdemir, Murat, Timurkaynak, Timur, Kocaman, Sinan Altan, ŞAHİNARSLAN, ASİFE, Yazici, Erhan, Turfan, Murat   +5 more
core   +1 more source

Influence of virtual monoenergetic reconstructions on coronary CT angiography-based fractional flow reserve with photon-counting detector CT: intra-individual comparison with energy-integrating detector CT

Insights into Imaging
Objectives This study aimed to assess the impact of the photon-counting detector (PCD)-CT-based virtual monoenergetic image (VMI) reconstruction keV levels on CT-based fractional flow reserve (CT-FFR), compared to the energy-integrating detector (EID)-CT.
Giuseppe Tremamunno, Daniel Pinos, Emese Zsarnoczay, U. Joseph Schoepf, Milan Vecsey-Nagy, Chiara Gnasso, Nicola Fink, Dmitrij Kravchenko, Muhammad Taha Hagar, Joseph Griffith, Jim O’Doherty, Andrea Laghi, Tilman Emrich, Akos Varga-Szemes   +13 more
doaj   +1 more source

P2378Correlation between quantitative flow ratio (QFR) and fractional flow reserve (FFR) [PDF]

European Heart Journal, 2017
J. Legutko, P. Kleczynski, A. Dziewierz, L. Rzeszutko, S. Bartus, M. Bagienski, D. Dudek   +6 more
openaire   +1 more source

Fractional flow reserve measurements and long-term mortality—results from the FLORIDA study

Frontiers in Cardiovascular Medicine
BackgroundRandomized evidence suggested improved outcomes in fractional flow reserve (FFR) guidance of coronary revascularization compared to medical therapy in well-defined patient cohorts.
Felicitas Boeckling, Barbara E. Stähli, Tanja Rudolph, Matthias Lutz, Anne-Sophie Schatz, Tobias Vogelmann, Magnus Stueve, Nick E. J. West, Els Boone, Aslihan Erbay, David M. Leistner   +10 more
doaj   +1 more source

Comparison of Instantaneous Wave-Free Ratio (iFR) and Fractional Flow Reserve (FFR) with respect to Their Sensitivities to Cardiovascular Factors: A Computational Model-Based Study. [PDF]

J Interv Cardiol, 2020
Ge X, Liu Y, Yin Z, Tu S, Fan Y, Vassilevski Y, Simakov S, Liang F.   +7 more
europepmc   +1 more source

Intracoronary Adenosine-Induced Ventricular Arrhythmias During Fractional Flow Reserve (FFR) Measurement: Case Series and Literature Review

, 2017
Fractional flow reserve (FFR) is a standardized and well-established method frequently used in clinical practice to evaluate the hemodynamic significance of epicardial coronary stenosis identified by coronary angiography. It is based on the change in the
Bikkina, Mahesh, Shah, P, Patel, H, Bajaj, S, Virk, Hartaj, Shamoon, Fayez   +5 more
core   +1 more source

The Non-Hyperemic Coronary Pressure Notch as an Indicator of the Physiologic Significance of Coronary Artery Stenosis

Acta Medica Iranica, 2015
Myocardial fractional flow reserve (FFR) is a new index of the functional significance of intermediate coronary stenoses that is calculated from pressure measurements made during coronary arteriography.
Mohammad Hasan Namazi, Morteza Safi, Hosein Vakili, Habibollah Saadat, Saeed Alipour, Abdulkarim Alhuthaifi, Shamseddin Pedari, Mohammad Amin Abbasi   +7 more
doaj  

The diagnostic performance of machine learning-based FFRCT for coronary artery disease: A meta-analysis

Open Medicine
This meta-analysis evaluates the diagnostic accuracy of machine learning-derived FFRCT (ML-FFRCT) for CAD, using invasive coronary angiography-derived fractional flow reserve (ICA-FFR) as the gold standard to provide evidence for clinical translation.
Lian Rui, Zhang Xiangmin
doaj   +1 more source

Coronary Outcomes in Patients with Negative Fractional Flow Reserve (FFR) Studies [PDF]

Heart, Lung and Circulation, 2019
F. Zaky, V. Vijayarajan, R. Cohen, A. Ekmejian, P. Shetty   +4 more
openaire   +1 more source

Prognostic Value of Postpercutaneous Coronary Intervention Murray-Law-Based Quantitative Flow Ratio

JACC: Asia
Background: Coronary physiology measured by fractional flow reserve (FFR) is superior to angiography for assessing the efficacy of percutaneous coronary intervention (PCI). Yet, the clinical adoption of post-PCI FFR is limited.
Daixin Ding, PhD, Jinlong Zhang, MD, PhD, Peng Wu, PhD, Zhiqing Wang, MD, PhD, Huiping Shi, MSc, Wei Yu, PhD, Xinyang Hu, MD, PhD, Jeehoon Kang, MD, Joo-Yong Hahn, MD, Chang-Wook Nam, MD, Joon-Hyung Doh, MD, Bong-Ki Lee, MD, Weon Kim, MD, Jinyu Huang, MD, Fan Jiang, MD, Hao Zhou, MD, Peng Chen, MD, Lijiang Tang, MD, Wenbing Jiang, MD, Xiaomin Chen, MD, Wenming He, MD, Sung Gyun Ahn, MD, Myeong-Ho Yoon, MD, Ung Kim, MD, You-Jeong Ki, MD, Eun-Seok Shin, MD, Seung-Jea Tahk, MD, Jun Pu, MD, William Wijns, MD, PhD, Jian’an Wang, MD, PhD, Bon-Kwon Koo, MD, PhD, Shengxian Tu, PhD   +31 more
doaj   +1 more source