Results 11 to 20 of about 7,220,590 (185)

Dataset on blood flow and instantaneous wave-free ratio in normal and stenosed coronary arteries [PDF]

Data in Brief, 2020
Instantaneous wave-free ratio (iFR) has been proposed as a hemodynamic parameter that can reliably reflect the blood flow in stenosed coronary arteries. Currently, there are few investigations on the quantitative analysis of iFR in the patients regarding
Haipeng Liu, Shanxing Ou, Panli Liu, Yuhang Xu, Yinglan Gong, Ling Xia, Xinyi Leng, Thomas Wai Hong Leung, Lin Shi, Dingchang Zheng   +9 more
doaj   +3 more sources

Hybrid Instantaneous Wave-Free Ratio–Fractional Flow Reserve versus Fractional Flow Reserve in the Real World [PDF]

Frontiers in Cardiovascular Medicine, 2017
BackgroundThe instantaneous wave-free ratio (iFR) is a novel method to assess the ischemic potential of coronary artery stenoses. Clinical trial data have shown that iFR has acceptable diagnostic agreement with fractional flow reserve (FFR), the ...
Kara Shuttleworth, Kristina Smith, Jonathan Watt, Jamie A. L. Smith, Stephen J. Leslie, Stephen J. Leslie   +5 more
doaj   +2 more sources

Physiological evaluation of the provisional side-branch intervention strategy for bifurcation lesions using instantaneous wave-free ratio

Indian Heart Journal, 2018
Background: The provisional side-branch intervention strategy remains the gold standard approach for repair of coronary bifurcation lesions. We performed this study to evaluate the clinical and functional outcomes of using the instantaneous wave-free ...
Mohamed Shaheen, Moustafa Mokarrab, Ali Youssef, Mansour Aref, Abdelrahman Ibrahim Abushouk, Ahmed Elmaraezy, Adel Almasswary   +6 more
doaj   +2 more sources

Differential stress-induced ischemic electrocardiographic changes in acute versus stable coronary syndromes with severely reduced fractional flow reserve (≤0.60) [PDF]

International Journal of Cardiology: Heart & Vasculature
Background: Fractional flow reserve (FFR) is widely used to guide percutaneous coronary intervention (PCI) as a surrogate of inducible myocardial ischemia (IMI).
Do-Yoon Kang, Ji Sung Lee, Cheol Whan Lee   +2 more
doaj   +2 more sources

Pre-Angioplasty Instantaneous Wave-Free Ratio Pullback Predicts Hemodynamic Outcome In Humans With Coronary Artery Disease: Primary Results of the International Multicenter iFR GRADIENT Registry. [PDF]

JACC. Cardiovascular interventions, 2018
The authors sought to evaluate the accuracy of instantaneous wave-Free Ratio (iFR) pullback measurements to predict post-percutaneous coronary intervention (PCI) physiological outcomes, and to quantify how often iFR pullback alters PCI strategy in real-world clinical settings.In tandem and diffuse disease, offline analysis of continuous iFR pullback ...
Kikuta, Yuetsu, Cook, Christopher M., Sharp, Andrew S. P., Salinas, Pablo, Kawase, Yoshiaki, Shiono, Yasutsugu, Giavarini, Alessandra, Nakayama, Masafumi, De Rosa, Salvatore, Sen, Sayan, Nijjer, Sukhjinder S., Al-Lamee, Rasha, Petraco, Ricardo, Malik, Iqbal S., Mikhail, Ghada W., Kaprielian, Raffi R., Wijntjens, Gilbert W. M., Mori, Shinsuke, Hagikura, Arata, Mates, Martin, Mizuno, Atsushi, Hellig, Farrel, Lee, Kelvin, Janssens, Luc, Horie, Kazunori, Mohdnazri, Shah, Herrera, Raul, Krackhardt, Florian, Yamawaki, Masahiro, Davies, John, Takebayashi, Hideo, Keeble, Thomas, Haruta, Seiichi, Ribichini, Flavio, Indolfi, Ciro, Mayet, Jamil, Francis, Darrel P., Piek, Jan J., Di Mario, Carlo, Escaned, Javier, Matsuo, Hitoshi, Davies, Justin E.   +41 more
openaire   +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   +2 more sources

Instantaneous wave–free ratio (IFR) VS myocardial perfusion imaging by single photon emission tomography (MPI-SPECT) in assessment of significance of moderate coronary artery disease [PDF]

Al-Azhar International Medical Journal, 2023
Background: The noninvasive technique known as myocardial perfusion imaging is used to assess the functional relevance of borderline coronary artery abnormalities. Additionally, well-validated intrusive technique known as instantaneous wave-free ratio is
Essam Mohamed Nosier, Sameh Allam, Ayman Sadek, Mohamed Abdel hady   +3 more
doaj   +1 more source

The Pullback Pressure Gradient: Transforming Invasive Coronary Physiology from Lesion Assessment to Disease Pattern Characterization—A Perspective [PDF]

Medicina
This perspective comprehensively analyzes the invasive pullback pressure gradient (PPG), a novel physiological index that characterizes the longitudinal distribution of coronary artery disease and guides revascularization strategy modified in 14% of ...
Artur Dziewierz, Barbara Zdzierak, Stanisław Bartuś, Wojciech Zasada   +3 more
doaj   +2 more sources

Pathophysiological factors contributing to fractional flow reserve and instantaneous wave-free ratio discordance [PDF]

Reviews in Cardiovascular Medicine, 2022
The diagnostic accuracy and clinical benefits of instantaneous wave-free ratio (iFR) compared to fractional flow reserve (FFR) have been well-established in the literature. Despite the advantages of non-hyperemic pressure indices, approximately 20% of
Benjamin Fogelson, Hassan Tahir, James Livesay, Raj Baljepally   +3 more
doaj   +1 more source

Real-time use of instantaneous wave-free ratio: Results of the ADVISE in-practice: An international, multicenter evaluation of instantaneous wave-free ratio in clinical practice [PDF]

, 2014
: Objectives To evaluate the first experience of real-time instantaneous wave-free ratio (iFR) measurement by clinicians. Background The iFR is a new vasodilator-free index of coronary stenosis severity, calculated as a trans-lesion pressure ratio during
Vrints, Christiaan, Haine, Steven, Gotberg, Matthias, Petraco, Ricardo, Al-Lamee, Rasha, et al.   +5 more
core   +2 more sources