DFENet: Deep Feature Enhancement Network for Accurate Calculation of Instantaneous Wave-Free Ratio
نویسندگان
چکیده
منابع مشابه
ECG-Independent Calculation of Instantaneous Wave-Free Ratio.
size of the THV. One concern with overexpansion is impairment of proper leaflet function, resulting in significant central aortic regurgitation necessitating a second valve. We, however, saw no significant central insufficiency in any of our overexpanded S3 THV implants; our series from the 2 heart centers in Munich, Germany, encompassed more than 30 patients with initial deliberate overexpansi...
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Wave separation analysis and wave intensity analysis (WIA) use (aortic) pressure and flow to separate them in their forward and backward (reflected) waves. While wave separation analysis uses measured pressure and flow, WIA uses their derivatives. Because differentiation emphasizes rapid changes, WIA suppresses slow (diastolic) fluctuations of the waves and renders diastole a seemingly wave-fre...
متن کاملUse of the Instantaneous Wave-free Ratio or Fractional Flow Reserve in PCI.
BACKGROUND Coronary revascularization guided by fractional flow reserve (FFR) is associated with better patient outcomes after the procedure than revascularization guided by angiography alone. It is unknown whether the instantaneous wave-free ratio (iFR), an alternative measure that does not require the administration of adenosine, will offer benefits similar to those of FFR. METHODS We rando...
متن کاملDoes the instantaneous wave-free ratio approximate the fractional flow reserve?
OBJECTIVES This study sought to examine the clinical performance of and theoretical basis for the instantaneous wave-free ratio (iFR) approximation to the fractional flow reserve (FFR). BACKGROUND Recent work has proposed iFR as a vasodilation-free alternative to FFR for making mechanical revascularization decisions. Its fundamental basis is the assumption that diastolic resting myocardial re...
متن کاملHybrid Instantaneous Wave-Free Ratio–Fractional Flow Reserve versus Fractional Flow Reserve in the Real World
BACKGROUND The 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 reference standard for the functional assessment of coronary stenoses. This study compares iFR measurements with FFR measurements in a real world, sin...
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ژورنال
عنوان ژورنال: IEEE Journal of Translational Engineering in Health and Medicine
سال: 2020
ISSN: 2168-2372
DOI: 10.1109/jtehm.2020.2999725