Can MRI or CT scan show brain damage from stimulants?

Stimulants. Stimulants such as Cocaine and amphetamine exert their effects on the user's nervous system and change the user's emotions, behavior, and affects cognition. They may cause miicrovascular ischemic disease of the brain which is unlikely to be detected by MRI or ct scan.
MRI may see changes. Stimulants can cause changes in the blood flow to the brain. This manifests in changes in metabolism of different parts of the brain. This is especially well seen on pet studies. See the following website http://archives.Drugabuse.Gov/nida_notes/nnvol11n5/deepen.Html.