Results 51 to 60 of about 3,607,366 (207)

TCT-323 Diastolic fractional flow reserve (FFR) closely tracks whole-cycle FFR

Journal of the American College of Cardiology, 2014
FFR explicitly selected whole-cycle measurements to focus on epicardial resistance while minimizing capacitive and inductive effects. However, subsequent work proposed diastolic FFR because coronary flow occurs predominately during this phase of the cardiac cycle.
Johnson, Nils P., Veer, Marcel van 't, Kirkeeide, Richard L., Oldroyd, Keith G., Gould, K.L., Berry, Colin   +5 more
openaire   +1 more source

Adsorbent Materials for Hydrocarbons Removal by Geopolymerization of Halloysite Clay Nanotubes Filled Within Chitosan Matrix

Advanced Materials Interfaces, EarlyView.
Alkaline activation of halloysite clay nanotubes embedded in a chitosan matrix converts bionanocomposite films into porous geopolymeric materials with enhanced adsorption capacity toward hydrocarbons in both vapor and aqueous phases. The improved adsorption performance was demonstrated by the efficient capture of dodecane vapors and phenol from water ...
Alessandro Lo Bianco, Marta Giuseppina Ebbreo, Giuseppe Cavallaro, Martina Maria Calvino, Yafei Zhao, Simonpietro Agnello, Giuseppe Lazzara   +6 more
wiley   +1 more source

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   +1 more source

Análise comparativa do fractional flow reserve (FFR) e do instantaneous wave‐free ratio (iFR): resultados de um registo de 5 anos

Revista Portuguesa de Cardiologia, 2018
Resumo: Introdução e objetivos: A avaliação de lesões coronárias pelo instantaneous wave free ratio (iFR) tem gerado debate. Pretendeu‐se analisar o desempenho diagnóstico do iFR e o seu impacto na decisão de usar o fractional flow reserve (FFR) e nas ...
Miguel Nobre Menezes, Ana Rita G. Francisco, Pedro Carrilho Ferreira, Cláudia Jorge, Diogo Torres, Pedro Cardoso, José António Duarte, José Marques da Costa, Eduardo Infante de Oliveira, Fausto J. Pinto, Pedro Canas da Silva   +10 more
doaj   +1 more source

Variation in Fractional Flow Reserve (FFR) and Its Effects on Stenting Decision Making

The FASEB Journal, 2020
FFR is an important construct using intra‐arterial pressures to describe blood flow past partial stenoses in coronary arteries to determine the need for percutaneous coronary intervention. Point estimates of the FFR can be compared to two threshold values to determine three decision "zones ": FFR <0.75 such ...
Neal Handly, Guy R. Heyndrickx, Peter L. Kerkhof   +2 more
openaire   +1 more source

Preclinical Serial Assessment of Virtual Physiology After Implantation of a Novel Endoluminal Resorbable Fibrillated Scaffold

Catheterization and Cardiovascular Interventions, EarlyView.
ABSTRACT Background The resorbable fibrillated scaffold (RFS) is a novel electrospun, polylactide‐based endoluminal scaffold developed for peripheral arterial applications. Its porous microfibre architecture is intended to support host cell infiltration and vascular restoration.
Kotaro Miyashita, Lucas Hatzikostas, Emiliano Bianchini, Milosz Dziarmaga, Chun‐Ting Shih, Jouke Dijkstra, Eric K. W. Poon, Bart Sanders, Golo von Basum, Rick de Vries, Kim van Noort, Marc van Sambeek, Jos C. van den Berg, Albert Chinhenzva, Scot Garg, Yoshinobu Onuma, Patrick W. Serruys   +16 more
wiley   +1 more source

VERMONT μQFR: Diagnostic Accuracy of Murray Law‐Based 2D‐μQFR Compared to 3D‐μQFR and vFFR

Catheterization and Cardiovascular Interventions, EarlyView.
ABSTRACT Background Murray law‐based quantitative flow ratio (μQFR) is an angiography‐derived physiological index that utilizes a single angiographic projection with artificial intelligence‐guided vessel segmentation. Aims To evaluate the diagnostic accuracy and time efficacy of 2D‐μQFR against wire‐based fractional flow reserve (FFR ≤ 0.80), compare ...
Daniel Akrawi, Krishna Kadappu, James Xu, Tamer Yousef Naguib Badie, Oliver Gibbs, Hashim Kachwalla, Phong T. D. Nguyen, Rahul Kurup, Upul Premawardhana, Justyn Huang, Hao Tran, Kavie Soosapilla, Jim Basilakis, Aiden O'loughlin, Annemarie Hennessy, Giuseppe Femia, Sidney Lo   +16 more
wiley   +1 more source

Coronary Flow in Hypertrophic Obstructive Cardiomyopathy—Immediate Effects of Alcohol Septal Ablation

Catheterization and Cardiovascular Interventions, EarlyView.
ABSTRACT Background Hypertrophic cardiomyopathy is associated with alterations in coronary microvascular function which have variable pathophysiologic mechanisms, and variable reversibility acutely and chronically following alcohol septal ablation (ASA).
Vojko V. Misevic, Ana N. Golocevac, Kosta S. Krupnikovic, Stefan B. Timcic, Natalija B. Arnautovic, Dragana D. Radoicic, Milan R. Dobric, Aleksandar D. Mandic, Stefan S. Zivkovic, Aleksa D. Obradovic, Vladimir D. Mihajlovic, Natalija R. Odanovic, Ivan S. Ilic   +12 more
wiley   +1 more source

Diagnostic Accuracy and Feasibility of Quantitative Flow Ratio at Low Frame Rate Angiography: The Prospective Multicentre Australian AVALON Study

Catheterization and Cardiovascular Interventions, EarlyView.
ABSTRACT Background Quantitative Flow Ratio (QFR) is a well‐established, non‐hyperemic, angiographic, wire‐free predictor of ischemia when compared to Fractional Flow Reserve (FFR). However, its diagnostic accuracy at low frame rates (< 10 frames/second), commonly used in contemporary practice to minimize radiation exposure, has not been evaluated ...
Joseph M. O'Brien, Michael Zhang, Thomas J. Ford, Peter J. Psaltis, Jessica A. Marathe, Jayant Ravindran, Rajan Rehan, Vidushi Tripathi, Eleanor Redwood, Kelly Easey, Adam J. Brown, Derek P. Chew, Andy Yong, Dennis T. L. Wong   +13 more
wiley   +1 more source

Coronary CT FFR vs Invasive Adenosine and Dobutamine FFR in a Right Anomalous Coronary Artery [PDF]

, 2022
We present the management of an anomalous coronary artery originating from the opposite sinus of Valsalva with comprehensive diagnostic workup including noninvasive coronary computed tomography (CT) derived fractional flow reserve (FFR) and invasive ...
Huber, Adrian T, Lorenz Räber, Bigler, Marius R., Stark, Anselm W, Marius R. Bigler, Adrian T. Huber, Stark, Anselm W., Huber, Adrian T., Christoph Gräni, Giannopoulos, Andreas A., Matthias Siepe, Giannopoulos, Andreas A, Siepe, Matthias, Andreas A. Giannopoulos, Räber, Lorenz, Gräni, Christoph, Anselm W. Stark, Kadner, Alexander, Bigler, Marius R, Alexander Kadner   +19 more
core   +2 more sources