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. Author manuscript; available in PMC: 2012 May 1.
Published in final edited form as: Neuroimaging Clin N Am. 2011 May;21(2):259–283. doi: 10.1016/j.nic.2011.02.007

Table 1.

Distinguishing abnormal perfusion states using perfusion imaging.

CBV CBF MTT Timing parameters (e.g. Tmax)
Delayed arrival, preserved CPP — — — ↑
Compensated low CPP ↑ — ↑ ↑
Underperfused ↑↓ ↓ ↑↓ ↑
Post-ischemic hyperperfusion ↑ ↑ ↑↓ ↑↓ (usually ↓)