Study of Laser Interstitial Thermal Therapy (LITT) Treatment Response Assessment With Fluciclovine PET MR

The purpose of this study is to assess the relationship between brain malignancy volume as defined by post-contrast T1 weighted and F18 Fluciclovine before and following LITT. We hypothesize that imaging with F18 Fluciclovine will be superior to anatomic MR imaging in lesion volume assessment before treatment and that residual F18 Fluciclovine defined tumor will predict local post-LITT disease recurrence.