Results 81 to 90 of about 3,798,071 (209)

Influence of microcirculation load on FFR in coronary artery stenosis model

BMC Cardiovascular Disorders, 2020
Background The coronary artery hemodynamics are impacted by both the macrocirculation and microcirculation. Whether microcirculation load impact the functional assessment of a coronary artery stenosis is unknown.
Hongzeng Xu, Jing Liu, Donghui Zhou, Yuanzhe Jin   +3 more
doaj   +1 more source

Application of AI on Fractional Flow Reserve (FFR) Determining the Requirement of Angioplasty and Stenting

Clinical Cardiology and Cardiovascular Interventions, 2023
Artificial Intelligence (AI) has the potential to greatly improve the field of cardiovascular medicine, particularly in the determination of the need for angioplasty and stenting in patients with coronary artery disease. Fractional Flow Reserve (FFR), a commonly used method for assessing the severity of stenosis in the coronary arteries, is often ...
openaire   +1 more source

Diagnostic Performance of Noninvasive Coronary Computed Tomography Angiography-Derived FFR for Coronary Lesion-Specific Ischemia Based on Deep Learning Analysis

Reviews in Cardiovascular Medicine
Background: The noninvasive computed tomography angiography–derived fractional flow reserve (CT-FFR) can be used to diagnose coronary ischemia. With advancements in associated software, the diagnostic capability of CT-FFR may have evolved.
Haoyu Wu, Lei Liang, Fuyu Qiu, Wenqi Han, Zheng Yang, Jie Qi, Jizhao Deng, Yida Tang, Xiling Shou, Haichao Chen   +9 more
doaj   +1 more source

Impact of fractional flow reserve on decision-making in daily clinical practice: A single center experience in Egypt

The Egyptian Heart Journal, 2018
Background: Fractional flow reserve (FFR) is the reference standard for the assessment of the functional significance of coronary artery stenoses, but remains underutilized.
Amr Elfaramawy, Mohamed Hassan, Michael Nagy, Ahmed ElGuindy, Mahmoud F. Elmahdy   +4 more
doaj   +1 more source

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

Catheterization and Cardiovascular Interventions, Volume 108, Issue 4, Page 1344-1353, October 1, 2026.
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

Use of Intracoronary Pressure Wire Assessment and Association With Outcomes: Insights From the British Cardiovascular Intervention Society National Database

Catheterization and Cardiovascular Interventions, Volume 108, Issue 4, Page 1743-1753, October 1, 2026.
ABSTRACT Background Despite recommendations in international guidelines, Intracoronary pressure wire assessment (PWA) utilization remains limited in clinical practice. This study aims to describe (i) trends of PWA during Percutaneous coronary interventional (PCI), (ii) factors that predict its application, and (iii) association with in‐hospital ...
Hussein Bashar, Muhammad Rashid, Mamas A. Mamas, Nick Curzen   +3 more
wiley   +1 more source

Myocardial perfusion imaging by single-photon emission tomography (MPI SPECT) versus Instantaneous wave-free ratio (IFR) for assessment of functional significance of intermediate coronary artery lesions

The Egyptian Heart Journal, 2019
Background The aim of our work was to compare the myocardial perfusion imaging by single-photon emission tomography (MPI-SPECT) as a non-invasive, relatively non-expensive test versus the instantaneous wave-free ratio (IFR) for the evaluation of ...
Osama Ahmed Amin, Yasser Ahmed Abdel Hady, Mohammad Ahmad Nour El-Din Esmail   +2 more
doaj   +1 more source

Safety and efficacy of intracoronary sodium nitroprusside for the assessment of coronary fractional flow reserve

Indian Heart Journal, 2018
Background: Coronary fractional flow reserve (FFR) determination is a valuable tool for the assessment of stenosis significance in intermediate coronary obstructions. Maximal hyperemia is mandatory for this determination.
Pablo Pedroni, Ricardo Aquiles Sarmiento, Raúl Solernó, Agustín Hauqui, Martín Oscos, Fernando Alvarez, Angeles Videla Lynch, Federico Giachello, Juan Scaglia, Diego Grinfeld   +9 more
doaj   +1 more source

Investigation of Tribotechnical Characteristics of Epoxy Composites Containing Al2O3, ZnO, and PTFE Using Neural Networks

SPE Polymers, Volume 7, Issue 4, October 2026.
Schematic of tribological studies using neural networks. ABSTRACT The paper investigates the dependence of wear intensity and friction coefficient of epoxy composites on the content of fillers—aluminum oxide (Al2O3), polytetrafluoroethylene (PTFE), and zinc oxide (ZnO).
Oleg Totosko, Petro Stukhliak, Danylo Stukhliak   +2 more
wiley   +1 more source

Efficient Adsorptive Removal of Methyl Violet Dye from Wastewater Using Functionalized Groundnut Shell Biochar: Application, Mechanism, Modeling, and Optimization Study

Global Challenges, Volume 10, Issue 9, September 2026.
This study focused on the production and application of secondary waste, namely ground nutshell residual mass (after MeOH extraction)‐derived FGNB‐based multifunctional nanoadsorbents in industrial wastewater treatment technology. The FGNB nanosorbent would be a sustainable alternative to fossil‐based, hazardous ones for environmental protection and ...
Md. Asik Uzzaman Asa, Md. Mahmudur Rahman, Jubayer Ahmed, Bijoy Chandra Ghos, Salah Knani, Mustafizur Rahman Naim, Reem Alreshidi, Md. Ismail Hossain   +7 more
wiley   +1 more source