학술논문
Nonhyperemic intracoronary pressure waveform analysis predicts the fractional flow reserve
Document Type
Conference
Author
Source
2010 Computing in Cardiology Computing in Cardiology, 2010. :1079-1082 Sep, 2010
Subject
Language
ISSN
0276-6574
2325-8853
2325-8853
Abstract
The fractional flow reserve (FFR) is measured during maximal hyperemia achieved by intracoronary or intravenous vasodilatator. It has been regarded that the nonhyperemic resting pressure ratio (RPR) was not appropriate for exact evaluation of the functional severity of coronary lesion. Some studies suggest, however, that the comparison of the proximal and distal resting waveform of the stenosis may predict the fractional flow reserve (FFR), because the intracoronary waveform has such a high-frequency pressure signal at the closing of aortic valve (notch) that can be decreased by the filter-effect of the stenosis.