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FIG 6. MRI-derived (a) post-contrast (b) GE rCBV, (c) SE rCBV and (d) ratio maps obtained in a 66-year-old female patient prior to CT-guided biopsy. The biopsy pathologic results suggest low-grade astrocytoma. This diagnosis is not consistent with either the rCBV results or the clinical course of this patient.
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