<unk>  or<unk> -weighted imaging (PWI) is<unk>  scanning by the use of a particular<unk>  sequence. The acquired data are then post-processed to obtain<unk>  maps with different parameters, such as BV (blood volume), BF (blood flow), MTT (mean transit time) and TTP (time to peak).
Perfusion MRI
Perfusion scanning
Microangiography
Functional imaging
Arterial spin labelling
Magnetic resonance angiography
Angiography
Cerebral angiography