To determine the efficacy and feasibility of using combined DSC and ASL perfusion imaging in a routine protocol to assess the response to treatment of high-grade gliomas in adults. Perfusion imaging is performed for perform differentiation of tumor recurrence from radiation necrosis, since it provides information about angiogenesis at the microscopic level. The data obtained show that the combined use of ASL and DSC perfusion in a routine protocol can be considered as possible additional methods in differentiating recurrent tumor from pseudoprogression.
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