PT  - JOURNAL ARTICLE
AU  - Sundgren, P.C.
TI  - MR Spectroscopy in Radiation Injury
AID  - 10.3174/ajnr.A1580
DP  - 2009 Sep 01
TA  - American Journal of Neuroradiology
PG  - 1469--1476
VI  - 30
IP  - 8
4099  - http://www.ajnr.org/content/30/8/1469.short
4100  - http://www.ajnr.org/content/30/8/1469.full
SO  - Am. J. Neuroradiol.2009 Sep 01; 30
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.