RT Journal Article
SR Electronic
T1 MR Spectroscopy in Radiation Injury
JF American Journal of Neuroradiology
JO Am. J. Neuroradiol.
FD American Society of Neuroradiology
SP 1469
OP 1476
DO 10.3174/ajnr.A1580
VO 30
IS 8
A1 Sundgren, P.C.
YR 2009
UL http://www.ajnr.org/content/30/8/1469.abstract
AB SUMMARY: Detecting a new area of contrast enhancement in or in the vicinity of a previously treated brain tumor always causes concern for both the patient and the physician. The question that immediately arises is whether this new lesion is recurrent tumor or a treatment effect. The differentiation of recurrent tumor or progressive tumor from radiation injury after radiation therapy is often a radiologic dilemma regardless the technique used, CT or MR imaging. The purpose of this article was to review the utility of one of the newer MR imaging techniques, MR spectroscopy, to distinguish recurrent tumor from radiation necrosis or radiation injury.