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PHYSIOLOGICAL IMAGING
DWI MRI
• Differential
diagnosis of
abscess, epidermoid cyst,
traumatic shearing injury,
toxic and infectious
encephalitis, immediate post
brain injury
• Accurate interpretation of
new abnormal
contrast
enhancement
developing
soon after tumor resection
• Postoperative ischemia
PITFALL
: Para or
ferromagnetic materials such
as blood products or calcium
within the brain can simulate
pathology on DWI as well as
perfusion MRI
Brain abscess
Epidermoid