Improved Assessment of Coronary Stenosis Severity Using the Relative Flow Velocity Reserve | Zendy

Dietrich Baumgart | Zendy; Michael Haude | Zendy; Guenter Goerge | Zendy; Junbo Ge | Zendy; Sabine Vetter | Zendy; Nikolaos Dagres | Zendy; Gerd Heusch | Zendy; Raimund Erbel | Zendy

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Improved Assessment of Coronary Stenosis Severity Using the Relative Flow Velocity Reserve

Author(s) -

Dietrich Baumgart,

Michael Haude,

Guenter Goerge,

Junbo Ge,

Sabine Vetter,

Nikolaos Dagres,

Gerd Heusch,

Raimund Erbel

Publication year - 1998

Publication title -

circulation

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 7.795

H-Index - 607

eISSN - 1524-4539

pISSN - 0009-7322

DOI - 10.1161/01.cir.98.1.40

Subject(s) - fractional flow reserve , medicine , stenosis , cardiology , coronary flow reserve , coronary arteries , aortic pressure , coronary angiography , hemodynamics , coronary artery disease , artery , myocardial infarction

Myocardial fractional flow reserve (FFR) is based on pressure measurements. We have now sought to establish a Doppler-based concept of relative flow velocity reserve (RFVR) for the functional assessment of stenosis severity in epicardial coronary arteries. A clear threshold value to discriminate the functional severity of a coronary stenosis does not exist for coronary flow velocity reserve (CVR) based on intracoronary Doppler measurements. In contrast, the concept of FFR, which is based on intracoronary pressure measurements, has been extensively validated. An FFR value below 0.75 reliably indicates a significant stenosis.

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