Articles with "flow ratio" as a keyword



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Quantitative flow ratio for immediate assessment of nonculprit lesions in patients with ST‐segment elevation myocardial infarction—An iSTEMI substudy

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Published in 2019 at "Catheterization and Cardiovascular Interventions"

DOI: 10.1002/ccd.28208

Abstract: We evaluated the diagnostic performance of quantitative flow ratio (QFR) assessment of nonculprit lesions (NCLs) based on acute setting angiograms obtained in patients with ST‐segment elevation myocardial infarction (STEMI) with QFR, fractional flow reserve (FFR),… read more here.

Keywords: flow ratio; ratio; quantitative flow; assessment nonculprit ... See more keywords
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Novel application of quantitative flow ratio for predicting microvascular dysfunction after ST‐segment‐elevation myocardial infarction

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Published in 2020 at "Catheterization and Cardiovascular Interventions"

DOI: 10.1002/ccd.28718

Abstract: This study evaluated quantitative flow ratio (QFR) to predict microvascular dysfunction (MVD) in patients with ST‐segment elevation myocardial infarction (STEMI). read more here.

Keywords: segment elevation; microvascular dysfunction; flow ratio; myocardial infarction ... See more keywords
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Head to head comparison of quantitative flow ratio using 4‐French and 6‐French catheters versus fractional flow reserve

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Published in 2021 at "Catheterization and Cardiovascular Interventions"

DOI: 10.1002/ccd.29933

Abstract: To validate QFR using 4‐F diagnostic catheters compared to using 6‐F guiding catheters, with conventional guidewire‐based FFR as the reference standard, using independent core laboratory analysis. read more here.

Keywords: flow ratio; flow; quantitative flow; head head ... See more keywords
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Diagnostic performance of intravascular ultrasound‐based fractional flow reserve versus angiography‐based quantitative flow ratio measurements for evaluating left main coronary artery stenosis

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Published in 2022 at "Catheterization and Cardiovascular Interventions"

DOI: 10.1002/ccd.30078

Abstract: We compared the diagnostic performance of the ultrasonic flow ratio (UFR) and quantitative flow ratio (QFR) for left main coronary artery (LMCA) stenosis. read more here.

Keywords: flow ratio; flow; left main; diagnostic performance ... See more keywords
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Computational quantitative flow ratio to assess functional severity of coronary artery stenosis.

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Published in 2018 at "International journal of cardiology"

DOI: 10.1016/j.ijcard.2018.05.002

Abstract: Background Computational quantitative flow ratio (QFR) based on 3-dimensional quantitative coronary angiography (3D QCA) analysis offers the opportunity to assess the significance of coronary artery disease (CAD) without using an invasive pressure wire or inducing… read more here.

Keywords: qfr; flow; flow ratio; cad ... See more keywords
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Study on limit flow ratio method for a lateral exhaust hood above high-temperature buoyant jets

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Published in 2020 at "Sustainable Cities and Society"

DOI: 10.1016/j.scs.2019.101969

Abstract: Abstract A local lateral exhaust hood can be used to capture the contaminated airflow in the industrial production process. For the design of the lateral exhaust hood, the flow ratio method is commonly adopted. However,… read more here.

Keywords: flow ratio; limit flow; lateral exhaust; hood ... See more keywords
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QUANTITATIVE FLOW RATIO ACCORDING TO THREE-DIMENSIONAL QUANTITATIVE CORONARY ANGIOGRAPHY DEFINED SEVERITY OF STENOSIS IN A COHORT OF WOMEN WITH STABLE CORONARY ARTERY DISEASE

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Published in 2020 at "Journal of the American College of Cardiology"

DOI: 10.1016/s0735-1097(20)30804-4

Abstract: Quantitative flow ratio (QFR) is a recently developed technique to calculate fractional flow reserve (FFR) based on three-dimensional (3D) quantitative coronary angiography (QCA), obviating the need for induction of hyperemia and pressure-wire measurement. FFR values… read more here.

Keywords: three dimensional; quantitative coronary; flow ratio; quantitative flow ... See more keywords
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Lab-on-chip microfluidic impedance measurement for laminar flow ratio sensing and differential conductivity difference detection

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Published in 2017 at "Applied Physics Letters"

DOI: 10.1063/1.4984897

Abstract: We present a microfluidic impedance device for achieving both the flow ratio sensing and the conductivity difference detection between sample stream and reference buffer. By using a flow focusing configuration, with the core flow having… read more here.

Keywords: difference; detection; flow ratio; conductivity ... See more keywords
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Impact of diabetes on coronary physiology evaluated by quantitative flow ratio in patients who underwent percutaneous coronary intervention.

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Published in 2022 at "Journal of diabetes investigation"

DOI: 10.1111/jdi.13779

Abstract: AIM There are mixed opinions on the influence of diabetes on the prognosis of patients receiving percutaneous coronary intervention (PCI). Therefore, in this study, the quantitative flow ratio (QFR), an emerging technology of functional evaluation,… read more here.

Keywords: percutaneous coronary; patients underwent; flow ratio; coronary intervention ... See more keywords
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Quantitative flow ratio as a new tool for angiography-based physiological evaluation of coronary artery disease: a review.

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Published in 2021 at "Future cardiology"

DOI: 10.2217/fca-2020-0199

Abstract: The functional evaluation of coronary stenoses has obtained important clinical results in recent years, resulting in strong guideline recommendations. Nonetheless, the use of coronary wire-based functional evaluation has not yet become part of the routine… read more here.

Keywords: angiography; flow ratio; evaluation coronary; quantitative flow ... See more keywords
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Novel Insights Into the Interaction Between the Autonomic Nervous System and Inflammation on Coronary Physiology: A Quantitative Flow Ratio Study

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Published in 2021 at "Frontiers in Cardiovascular Medicine"

DOI: 10.3389/fcvm.2021.700943

Abstract: Background: Heart rate variability (HRV) was proposed as a noninvasive biomarker to stratify the risk of cardiovascular disease. However, it remains to be determined if HRV can be used as a surrogate for coronary artery… read more here.

Keywords: autonomic nervous; nervous system; flow ratio; coronary artery ... See more keywords