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

