Results 31 to 40 of about 55,652 (297)

Stability of Diluted Adenosine Solutions in Polyolefin Infusion Bags [PDF]

open access: yes, 2013
Background Intravenous or intracoronary adenosine is used in the cardiac catherization lab to achieve maximal coronary blood flow and determine fractional flow reserve.
Almagambetova, Elise   +3 more
core   +2 more sources

End-Diastolic Fractional Flow Reserve [PDF]

open access: yesCirculation: Cardiovascular Interventions, 2014
Background— Diastolic fractional flow reserve (dFFR) has been shown to be highly sensitive for detection of inducible myocardial ischemia. However, its reliance on measurement of left-ventricular pressure for zero-flow pressure correction, as well as manual extraction of the diastolic interval, has been its major limitation ...
David A, Chalyan   +3 more
openaire   +2 more sources

CT-FFR: Clinical Application

open access: yesMajalah Kardiologi Indonesia, 2018
Invasive fractional flow reserve (FFR) is the gold standard for guiding decision making to identify patients who would benefit from revascularization. Now, computed tomography can also do that by using computational fluid dynamics to calculate fractional
Sidhi Laksono Purwowiyoto
doaj   +1 more source

Developing precision stroke imaging. [PDF]

open access: yes, 2014
Stroke experts stand at the cusp of a unique opportunity to advance the care of patients with cerebrovascular disorders across the globe through improved imaging approaches.
Feldmann, Edward, Liebeskind, David S
core   +2 more sources

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

open access: yesFrontiers 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   +5 more
doaj   +1 more source

Microvascular dysfunction in the immediate aftermath of chronic total coronary occlusion recanalization [PDF]

open access: yes, 2016
Objectives The aim of this study was to compare microvascular resistance under both baseline and hyperemic conditions immediately after percutaneous coronary intervention (PCI) of a chronic total occlusion (CTO) with an unobstructed reference vessel in ...
Alamgir, Farquad   +5 more
core   +2 more sources

Different Microcirculation Response Between Culprit and Non‐Culprit Vessels in Patients With Acute Coronary Syndrome

open access: yesJournal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2020
Background This study investigated whether the microvascular dysfunction differed between culprit and non‐culprit vessels in patients with acute coronary syndrome who underwent percutaneous coronary intervention.
Yoon‐Sung Jo   +2 more
doaj   +1 more source

A New Approach in Risk Stratification by Coronary CT Angiography. [PDF]

open access: yes, 2014
For a decade, coronary computed tomographic angiography (CCTA) has been used as a promising noninvasive modality for the assessment of coronary artery disease (CAD) as well as cardiovascular risks.
Budoff, Matthew J, Nakanishi, Rine
core   +3 more sources

Coronary Microcirculation Downstream Non‐Infarct‐Related Arteries in the Subacute Phase of Myocardial Infarction: Implications for Physiology‐Guided Revascularization

open access: yesJournal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2019
Background Concerns exist about reliability of pressure‐wire‐guided coronary revascularization of non‐infarct‐related arteries (non‐IRA). We investigated whether physiological assessment of non‐IRA during the subacute phase of myocardial infarction might
Hernán Mejía‐Rentería   +15 more
doaj   +1 more source

Biomarkers of coronary endothelial health: correlation with invasive measures of collateral function, flow and resistance in chronically occluded coronary arteries and the effect of recanalization [PDF]

open access: yes, 2016
Objectives: In the presence of a chronically occluded coronary artery, the collateral circulation matures by a process of arteriogenesis; however, there is considerable variation between individuals in the functional capacity of that collateral network ...
Alamgir, Farquad   +6 more
core   +2 more sources

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