Words I didn't know, in case it saves others a couple minutes...

Infarction - Tissue death due to inadequate blood supply

Edema - Abnormal build up up fluid within the body

Cortex - Wrinkly, outermost layer of the brain.

Thalamus - Part of the brain relating to sensory and motor signals.

DWI - Form of MRI. Measures Brownian motion of water molecules. Does not necessarily involve driving while intoxicated