Identification of cerebral blood volume and tumor metabolism through the use of 18F-FDG-PET and MR imaging was effective in characterizing pediatric brain tumors, Canadian researchers have found. "Thirty-one of 33 cases had good to excellent registration of the 18F-FDG PET and MR permeability images including the 3D ROI [region of interest]. Further, the correlation was good to excellent across a spectrum of brain tumor histologies irrespective of anatomic variations caused by the patients' disease," researchers wrote in The Journal of Nuclear Medicine.

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