Contrast-enhanced T1WI (A and C) and CBF maps derived from ASL imaging (B and D) for 2 representative cases. Contrast-enhanced T1WI (A and C) and CBF maps.

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Contrast-enhanced T1WI (A and C) and CBF maps derived from ASL imaging (B and D) for 2 representative cases. Contrast-enhanced T1WI (A and C) and CBF maps derived from ASL imaging (B and D) for 2 representative cases. A and B, A cerebellar hemangioblastoma in a 36-year-old woman with a high size ratio of 1.92 and rTBF of 6.16. C and D, A cerebellar metastasis in a 42-year-old woman with breast cancer with a relatively low size ratio of 0.71 and rTBF of 2.1. E and F, A cerebellar metastasis in a 56-year-old man with renal cell carcinoma with a size ratio of 0.82 and rTBF of 14.36. K.M. Kang et al. AJNR Am J Neuroradiol 2017;38:2052-2058 ©2017 by American Society of Neuroradiology