Role of Dynamic Susceptibility Contrast Perfusion MRI in Glioma Progression Evaluation

Figure 4

Example of pseudoprogression. A 21-year-old man with pathologically proven glioblastoma. A new enhancing lesion (arrow) developed in his left frontal lobe three months after completion of radiotherapy (a). No hyper-perfusion was detected on his DSC-MRI (b), with rCBV value of 0.71. MRS display Cho/Cr ratio of 1.20 and Cho/NAA 0.46 (c). The enhancing lesions in initial follow-up MRI disappeared in the MRI 23 months after completion of radiotherapy (d).

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