<unk>  <unk> , also known as a plasma<unk><unk> , refers to the concentration of tracer in blood-plasma in an artery measured over time. The oldest record on PubMed shows that<unk>  was used by Harvey et al. in 1962 to measure the exchange of materials between red blood cells and blood plasma, and by other researchers in 1983 for positron emission tomography (PET) studies. Nowadays, kinetic analysis is performed in various medical imaging techniques, which requires an<unk>  as one of the<unk> s to the mathematical model, for example, in dynamic PET imaging, or perfusion CT, or dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI).
Arterial input function
Vascular resistance
PAH clearance
Segmental blood pressure
Arterial resistivity index
Instantaneous wave-free ratio
Pressure reactivity index
Basal rate