Results 81 to 90 of about 3,607,366 (207)
Coronary flow reserve and fractional flow reserve [Koroner akim ve fraksiyonel akim rezervi]
, 2007 Coronary flow reserve (CFR) and fractional flow reserve (FFR) are two methods used to provide information for functional significance of coronary artery stenosis.
Özyol A., Yilmaz M.B.
core +3 more sources
Reviews in Cardiovascular MedicineBackground: 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 +9 more
doaj +1 more source
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 +4 more
doaj +1 more source
Catheterization and Cardiovascular Interventions, Volume 108, Issue 2, Page 287-300, August 1, 2026.ABSTRACT Index of microcirculatory resistance (IMR) is a cutting‐edge, wire‐based tool that advances the capability assessment of coronary microvascular function. By utilizing distal coronary pressure and mean transit time under maximal hyperemia, IMR delivers consistent, reproducible insights into the microvasculature's dynamic health.
Joanna Sohn +10 more
wiley +1 more source
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 +2 more
doaj +1 more source
Clinical Cardiology, Volume 49, Issue 8, August 2026.AI in CCTA research is rapidly expanding, led by China and the USA, with deep learning and machine learning as central themes. Key areas like fractional flow reserve and diagnostic accuracy show intense recent interest, highlighting a shift toward predictive applications requiring further clinical validation. ABSTRACT Background Artificial intelligence
Shanshan Jiang +3 more
wiley +1 more source
Catheterization and Cardiovascular Interventions, Volume 108, Issue 1, Page 14-20, July 1, 2026.ABSTRACT Background A substantial proportion of patients with angina and/or ischemia are found to have non‐obstructive coronary arteries (ANOCA/INOCA). Their symptoms can sometimes be explained by coronary microvascular dysfunction and/or vasospasm. Selecting patients for acetylcholine testing remains challenging, and the procedure is not trivial in ...
Jeremie Buri +7 more
wiley +1 more source
, 2013 Fractional flow reserve has become an essential tool in the modern catheterization laboratories. FFR has shown to be more accurate for the detection of ischemia than available non-invasive methods.
Tonino, W.A.L. +2 more
core +1 more source
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 +9 more
doaj +1 more source
Hydrogen to Power: Exploring Current Developments and Future Challenges
Natural Sciences, Volume 6, Issue 3, July 2026.As the interest in low‐carbon energy systems grows, hydrogen continues to attract attention as a flexible energy carrier for power applications. Developments in hydrogen production, storage, transport, and utilization are explored. In addition, the deployment challenges of hydrogen energy vector related to economics, infrastructure, safety, and ...
Md. Shafiullah +6 more
wiley +1 more source