1. Source dynamic MR image (A), signal intensity time curves (S) (B), and color-coded perfusion map (overlaid on the corresponding FLAIR image) (C) of a male patient with a supratentorial astrocytoma (WHO grade III) in the left hemisphere (patient 21).
Source dynamic MR image (A), signal intensity time curves (S) (B), and color-coded perfusion map (overlaid on the corresponding FLAIR image) (C) of a male patient with a supratentorial astrocytoma (WHO grade III) in the left hemisphere (patient 21). The tumor pixel with the highest CBV value is represented as a small blue cross (L10). The contralateral corresponding white matter pixel is a purple cross (L16). The 2 pixels have distinct signal intensity curves with markedly deeper signal intensity drop in the tumor pixel (which begins 24 seconds after perfusion-weighted MR imaging initiation).
S. Bisdas et al. AJNR Am J Neuroradiol 2009;30:
©2009 by American Society of Neuroradiology