Comparison of Intravoxel Incoherent Motion Diffusion-Weighted MR Imaging and Arterial Spin Labeling MR Imaging in Gliomas

Figure 3

Male, aged 33 years with astrocytoma glioma in the right parietal (WHO II). The mass was hyperintensive with a fuzzy edge in axial T2-weighted image (a) and without any gadolinium enhancement (b). It shows slight perfusion in the CBF map (c) but fails to distinguish the boundaries of the tumor from normal brain substance. The TBF and CBF of contralateral semioval center were 80.72 and 27.53 mL/100 g/min, respectively. The map (d) and map (e) well demonstrate the borderlines of the tumor as an enhancement image. The map also shows an inhomogeneous intrinsic hyperintensity in the tumor. The map (f) fails to delineate internal details of the tumor but better describes the scope of peritumoral edema. The ADC map (g) resembled map. The , , and value of tumor and contralateral healthy semioval center were , 2.73, 2.30 × 10⁻³ mm²/s; , 0.74, 0.41 × 10⁻³ mm²/s; ADC, 0.868, 0.524 × 10⁻³ mm²/s; , 34.65%, 0.28, respectively. The logarithmic plot of signal intensity decay as function of with corresponding biexponential fit (h) of the tumor (arrow and solid circles) and contralateral semioval center (arrow head and hollow circles).

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