Research New England Books Etc. All medical imagery courtesy of the office of Ferenc Jolesz, M.D. except where noted MRI scans of a brain-stem tumor before and during surgery. The brain has shifted during the operation, but will assume its normal shape once the skull is closed. The upper images are of a pineal tumor.
Blood vessels are red.
Specially designed surgical instruments must be used within the MRI's magnetic fields. An operation in progress. Research New England Books Etc.