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Fig 5. A and B, Postcontrast T1-weighted (TR/TE, 3103/6.35 ms) image (A) and base image from perfusion CT study (B) in a 31-year-old man who presented with memory impairment and speech problems showing a nonenhancing mass in the left temporal lobe with minimal mass effect and perilesional edema. C and D, PS (C) and CBV (D) maps showing low permeability (PSA = 0.61 mL/100 g per minute) and low blood volume (CBV = 0.92 mL/100 g) within the mass. Histopathology revealed grade III anaplastic astrocytoma.
