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Fig 3. A meningioma in patient 12.
A, Localized proton spectrum of the edema surrounding the meningioma. The NAA/Cho, Cho/Cr, and mIns/Cr ratios are in the normal range. NAA/Cr is decreased to 1.4 (normal value, 1.8 ± 0.3), and Glx/Cr is increased to 2.5 (normal value, 1.8 ± 0.2). Glc, Lac, Lip, Val, Leu, and Ile are detected.
B, Axial FSE T2-weighted image (TR, 4200 ms; TE, 93 ms; NEX, 2) with the voxel (8 cm3) location in the edematous tissue.
C, Axial SE T1-weighted image (TR, 560 ms; TE, 18 ms) after administration of contrast agent with strong enhancement of the tumor.
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