There are multiple definitions:
resting full-cycle ratio(English)
- a non-hyperemic pressure-based index to assess the extent of a coronary stenosis
- FFR, PCI, NHPR, ACS, CAD, iFR, QCA, STEMI, IRA, IVI, OCT, OFR, VFR
- Coronary circulation, Ratio-based metric
- https://doi.org…rheartj/ehac786
- https://doi.org…IONS.123.013702
relative flow reserve(English)
- ratio of stress MBF in target myocardial territories to that of a reference vascular territory
- CFR, MBF, FFR, PET, iFR
- Coronary circulation, Ratio-based metric
- https://doi.org…GING.116.004768
- https://doi.org…cin.2016.12.015
renal flow reserve(English)
- the relative increase in blood flow velocity after maximal vasodilatation, thought to offer pivotal additional information on renal vascular reactivity and function and may help in selecting patients who may benefit from revascularization
- eGFR, MBF, MFR, NT-proBNP, PET, RAAS
- Hemodynamics, Kidney and adrenals, Ratio-based metric
- https://doi.org…/EIJ-D-18-01101
- https://doi.org…GING.123.015324
Role Function-Restrictive(English)
random forest regression(English)