Perfusion is the passage of fluid through the lymphatic system or blood vessels to an organ or a tissue. The practice of<unk>  is the process by which this perfusion can be observed, recorded and quantified. The term<unk>  encompasses a wide range of medical imaging modalities.
Perfusion scanning
Intravascular fluorescence
Perfusion MRI
Cerebral angiography
Microangiography
Functional near-infrared spectroscopy
Carbon dioxide angiography
Angiography