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Fig 4. Transverse MR images obtained in a 71-year-old woman with anaplastic astrocytoma. A and B, T2-weighted (A) (TR/TE, 3600/96 ms) and contrast-enhanced T1-weighted (B) (TR/TE, 670/14 ms) images showing a heterogeneous signal-intensity lesion with slightly enhanced areas in the left basal ganglia. C, Transverse rCBV map showing intratumoral high-perfusion areas (arrow). The maximum rCBV value within the tumor is 2.4. This patient died 25 months after the initial MR imaging study.
