The Choice of Arterial Input Function in Perfusion-Weighted MR Imaging - Size Matters in Terms of Saturation-Like Effects

Keywords

acute agent ahead alternative although another around arterial arteries artery association assumes attempts availability behavior behind besides bolus brain branches capillaries cerebral choice chosen clinical compartment concentration concentrations concluded considerations contrast correlation decoupling definitions degrading dependence depicting derived describe describing diameter dilution directly distal dominated dosage drop dynamic especially every examination excluded exhibited expected expressed extracting field finally findings flow function functions gradient heart hours improve increasing indicator individual injected input least like linear linearity local longer made making maps median middle mixture model necessarily noise obvious onset partial patients patterns peak perfusion peter planar plot plots power precondition principally print probably problematic quantification ranging recommend refer related relationship remaining representation respectively saline saturation scanner scatter scientific screened seem segment segments serves shape simulation slice sounds statement steep still stroke strong susceptibility suspected symptom targeted terms theoretical theory thereby tissue tracer trial trio usage utilizing valid vessel vessels volume whole widened