Due to similar appearance in conventional MR images, it is often difficult to differentiate cerebral vesicular echinococcosis (CAE) from brain metastases (BM). In this study, user perfusion weighted imaging technique, perfusion characteristics of these 2 diseases were systematically investigated. Our results indicated that significant difference of semi-quantitative parameters relative cerebral blood flow (rCBF) and relative cerebral blood volume (rCBV) from PWI between CAE and BM. Hence PWI can provide valuable additional information in differential disagnosis of alveolar echinococcosis and brain metastases.
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