Results 51 to 60 of about 3,798,071 (209)

FFR and corrected FFR values.

open access: yes, 2023
After correction according to the height difference, the overall FFR value increased. In the LAD, the corrected FFR value increased, while in the LCX and RCA, it decreased.
Hyo Jin Lee (1536352)   +13 more
core   +1 more source

Computed Tomography-Derived Fractional Flow Reserve: Developing A Gold Standard for Coronary Artery Disease Diagnostics

open access: yesReviews in Cardiovascular Medicine
In recent years, a new technique called computed tomography-derived fractional flow reserve (CT-FFR) has been developed. CT-FFR overcomes many limitations in the current gold-standard fractional flow reserve (FFR) techniques while maintaining a better ...
Liangbo Hu   +5 more
doaj   +1 more source

Prognostic Implications of Resistive Reserve Ratio in Patients With Coronary Artery Disease

open access: yesJournal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2020
Background Resistive reserve ratio is a thermodilution‐based index which integrates both coronary flow and pressure. Resistive reserve ratio represents the vasodilatory capacity of interrogated vessels including both epicardial coronary artery and ...
Seung Hun Lee   +13 more
doaj   +1 more source

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

open access: yesJournal 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.   +5 more
openaire   +1 more source

Impaired Flow and Physiology in Coronaries With Anomalous Origin From the Opposite Sinus of Valsalva

open access: yesCatheterization and Cardiovascular Interventions, EarlyView.
ABSTRACT Background Anomalous Aortic Origin of a Coronary Artery (AAOCA) high‐risk anatomical features (intramural segment, acute take‐off angle, slit‐like ostium) cause coronary stenosis leading to myocardial infarction. How these features alter coronary physiology remains unclear.
Mauro Lo Rito   +17 more
wiley   +1 more source

Diagnostic Agreement and Threshold Correspondence Between Resting Full‐Cycle Ratio and Nicorandil‐Based Fractional Flow Reserve in Intermediate Coronary Stenosis: A Prospective Single‐Center Registry

open access: yesCatheterization and Cardiovascular Interventions, EarlyView.
ABSTRACT Background RFR has shown good aggregate agreement with FFR, including in prior Asian cohorts using intracoronary nicorandil. Where RFR‐FFR disagreement is concentrated relative to the FFR 0.80 decision boundary, and how the two binary thresholds correspond, remain incompletely characterized. Methods In a prospective single‐center registry, 300
Yonghoon Shin   +8 more
wiley   +1 more source

Diagnostic Agreement of Quantitative Flow Ratio With Fractional Flow Reserve and Instantaneous Wave‐Free Ratio

open access: yesJournal 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   +22 more
doaj   +1 more source

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

open access: yesThe 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   +2 more
openaire   +1 more source

Advances in Sustainable Production of Bio‐Derived 5‐Alkoxymethylfurfural and Levulinate Esters: A Comprehensive Review

open access: yesCarbon Energy, EarlyView.
The present review discusses the advancement in the catalytic synthesis of 5‐alkoxymethylfurfural (AMF) and levulinate esters (LEs) from the aspects of catalytic systems, reaction mechanisms, product isolation, and techno‐economic analysis, supplying valuable insights toward future sustainable and efficient manufacture of AMF and LEs. ABSTRACT The huge
Jun Zhang   +6 more
wiley   +1 more source

Fractional flow reserve: a clinical perspective [PDF]

open access: yes, 2017
Fractional flow reserve (FFR) is a reference invasive diagnostic test to assess the physiological significance of an epicardial coronary artery stenosis. FFR-guided percutaneous coronary intervention in stable coronary artery disease has been assessed in
Hennigan, Barry   +5 more
core   +1 more source

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