Results 111 to 120 of about 56,087 (349)

Numerical analysis of the pressure drop across highly-eccentric coronary stenoses: application to the calculation of the fractional flow reserve

BioMedical Engineering OnLine, 2018
Background Fractional flow reverse (FFR) is the gold standard assessment of the hemodynamic significance of coronary stenoses. However, it requires the catheterization of the coronary artery to determine the pressure waveforms proximal and distal to the ...
R. Agujetas, M. R. González-Fernández, J. M. Nogales-Asensio, J. M. Montanero   +3 more
doaj   +1 more source

Consolidate Overview of Ribonucleic Acid Molecular Dynamics: From Molecular Movements to Material Innovations

Advanced Engineering Materials, EarlyView.
Molecular dynamics simulations are advancing the study of ribonucleic acid (RNA) and RNA‐conjugated molecules. These developments include improvements in force fields, long‐timescale dynamics, and coarse‐grained models, addressing limitations and refining methods.
Kanchan Yadav, Iksoo Jang, Jong Bum Lee
wiley   +1 more source

Intravenous regadenoson versus intracoronary adenosine for fractional flow reserve measurement

REC: Interventional Cardiology (English Ed.), 2019
Introduction and objectives: Regadenoson, a selective agonist of the A2a receptors of adenosine, has been proposed as an alternative for the measurement of fractional flow reserve (FFR).
Pau Federico Zaragoza, Luis Martínez Ortiz de Urbina, Teresa Castelló Viguer, Francisco Pomar Domingo, Enrique Peris Domingo   +4 more
doaj   +1 more source

500.05 Comparison Between Fractional Flow Reserve (FFR) vs. Computational Fractional Flow Reserve Derived from Three-dimensional Intravascular Ultrasound (IVUSFR) and Quantitative Flow Ratio (QFR) [PDF]

, 2019
BACKGROUND The determination of the ischemic status of a coronary artery by wireless physiologic assessment derived from angiography has been validated and approved in the US.
Bezerra, Cristiano Guedes, Blanco, Pablo Javier, Bulant, Carlos Alberto, Dan, Kazuhiro, Esteves, Antonio, Falcão, Breno A. A., Garcia Garcia, Hector M., Kajita, Alexandre, Lemons, Pedro Alves, Mariani, José, Maso Talou, Gonzalo Daniel, Melaku, Gebremedhin D., Ozaki, Yuichi, Pinton, Fabio A., Waksman, Ron   +14 more
core   +1 more source

On the Rigidity and Mechanical Behavior of Triply Periodic Minimal Surfaces‐Based Lattices: Insights from Extensive Experiments and Simulations

Advanced Engineering Materials, EarlyView.
This study examines the mechanical properties of triply periodic minimal surfaces (TPMS)‐based lattices, analyzing 36 architectures in elastic and plastic regimes. It evaluates the applicability of beam‐based scaling laws to TPMS lattices. Rigidity arises from the alignment of members with the load direction and solid regions preventing rotation.
Lucía Doyle, Humberto Terrones, Carlos González   +2 more
wiley   +1 more source

Heart transplant coronary artery disease: Multimodality approach in percutaneous intervention

Revista Portuguesa de Cardiologia, 2016
Coronary artery disease is the most important cause of late morbidity and mortality after heart transplantation. It is usually an immunologic phenomenon termed cardiac allograft vasculopathy, but can also be the result of donor-transmitted ...
Luís Leite, Vítor Matos, Lino Gonçalves, João Silva Marques, Elisabete Jorge, João Calisto, Manuel Antunes, Mariano Pego   +7 more
doaj  

Value of fractional flow reserve in making decisions about bypass surgery for equivocal left main coronary artery disease [PDF]

, 2001
G. Jan‐Willem Bech, H Droste, Nico H.J. Pijls, B De Bruyne, J. J. R. M. Bonnier, H. R. Michels, Kathinka Peels, Jacques J. Koolen   +7 more
openalex   +1 more source

“Virtual” (Computed) Fractional Flow Reserve

JACC: Cardiovascular Interventions, 2015
Fractional flow reserve (FFR) is the "gold standard" for assessing the physiological significance of coronary artery disease during invasive coronary angiography. FFR-guided percutaneous coronary intervention improves patient outcomes and reduces stent insertion and cost; yet, due to several practical and operator related factors, it is used in
Morris, P.D., van de Vosse, F.N., Lawford, P.V., Hose, D.R., Gunn, J.P.   +4 more
openaire   +5 more sources

Low‐Activation Compositionally Complex Alloys for Advanced Nuclear Applications—A Review

Advanced Engineering Materials, EarlyView.
Low‐activation compositionally complex alloys (LACCAs) are advanced metallic materials primarily composed of low‐activation elements, offering advantages such as rapid compliance with operational standards and safe recyclability. This review highlights their potential for extreme high‐temperature irradiation environments as structural materials for ...
Yangfan Wang, Hanliang Zhu, Zhiyang Wang, Zhijun Qiu, Xiao Wang, Zengxi Pan, Hongtao Zhu, Mingxing Zhang, Huijun Li   +8 more
wiley   +1 more source

Fractional Flow Reserve in Patients With Prior Myocardial Infarction [PDF]

, 2001
Bernard De Bruyne, Nico H.J. Pijls, Jozef Bartúnek, Kemal Kulecki, Jan-Willem Bech, Hugo De Winter, Paul Van Crombrugge, Guy R. Heyndrickx, William Wijns   +8 more
openalex   +1 more source