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Fig 3. Axial conventional images and perfusion maps obtained with CASL and T2DSC in a 78-year-old patient with frontal convex meningioma (patient 7). A, T2-weighted image. B, T1-weighted image. C, Post-Gd T1-weighted image. D, CASL perfusion-weighted image (rCBF map). E, T2DSC perfusion image (rCBF map), The tumor shows a very high signal intensity and intense enhancement on T2-weighted and post-Gd T1-weighted images, respectively. The hyperperfusion signal intensity is apparent on perfusion maps obtained with CASL and T2DSC. F, HE-stained sections (x200) from the same case. The angiomatous subtype of meningioma was confirmed on histologic examination. The large thin-walled vessels in which red blood cells are contained are found throughout the specimen.
