PT - JOURNAL ARTICLE AU - E.J. Sternberg AU - M.L. Lipton AU - J. Burns TI - Utility of Diffusion Tensor Imaging in Evaluation of the Peritumoral Region in Patients with Primary and Metastatic Brain Tumors AID - 10.3174/ajnr.A3702 DP - 2013 Sep 19 TA - American Journal of Neuroradiology 4099 - http://www.ajnr.org/content/early/2013/09/19/ajnr.A3702.short 4100 - http://www.ajnr.org/content/early/2013/09/19/ajnr.A3702.full AB - SUMMARY: In the brain, diffusion tensor imaging is a useful tool for defining white matter anatomy, planning a surgical approach to space-occupying lesions, and characterizing tumors, including distinguishing primary tumors from metastases. Recent studies have attempted, with varying success, to use DTI to define the extent of tumor microinfiltration beyond the apparent borders on T2-weighted imaging. In the present review, we discuss the current state of research on the utility of DTI for evaluating the peritumoral region of brain tumors. Abbreviations FAfractional anisotropyMDmean diffusivityTIItumor infiltration index