Overview
Perfusion imaging measures blood flow blood volume and mean transit time using CT MRI or PET to assess ischemia and tumor perfusion.
Technique
Dynamic contrast bolus tracking and deconvolution algorithms produce quantitative perfusion maps. Acquisition timing is critical.
Clinical Uses
Acute stroke core and penumbra assessment tumor perfusion for grading and therapy response and myocardial perfusion.
Limitations and Safety
Contrast use and radiation for CT. Standardization across platforms is challenging.