Use of magnetic resonance imaging to detect @entity3554 : limited use in XXXX and @entity706 but convincing results in @entity5 .

@entity1 @entity706 @entity5 @entity2286 @entity693 @entity1778 @entity1583 @entity3554
BACKGROUND: An early diagnosis of @entity693 is important to improve @entity1 ' survival. Data about a direct comparison of cerebrospinal fluid cytology (CSF-cytology) and MRI are very limited. Therefore, the aim of this study was to compare these two diagnostic modalities in diagnosing @entity693 in @entity1 with @entity1583 and solid @entity5 . METHODS: In 68 @entity1 suspicious for @entity3554 , cytology and MRI (1.5 T) was performed. The meningeal, pial or intraparenchymal hyperintense signal or contrast enhancement was correlated to the final CNS diagnosis and to cytology. RESULTS: 44 @entity1 (64.7%) had @entity3554 , 21 @entity1 (30.9%) had @entity3554 . The sensitivity to diagnose @entity693 was 49.2% for MRI and 95.4% for cytology (p<0.001). In @entity1 with @entity3554 , sensitivity was 45.5% for MRI and 93.2% for cytology (p<0.001). In @entity1 with @entity693 , sensitivity was 57.1% for MRI and 100% for cytology (p=0.0013). In @entity1 with @entity5 , the sensitivity was 84.6% for both diagnostic methods. The sensitivity for MRI was low in @entity1 with @entity1778 (20.0%) and @entity706 (37.5%). The positive predictive value ( @entity2286 ) for MRI to differentiate infectious from @entity3554 was high in @entity1 with @entity693 (75.0%), in @entity1 with @entity706 (83.3%), and in @entity1 with @entity5 (72.7%). @entity2286 was low in @entity1 with @entity1778 (33.3%). CONCLUSION: Diagnostic value of MRI for diagnosing @entity693 is especially limited in @entity1 with @entity1583 . MRI better detected leptomeningeal involvement caused by @entity5 than by @entity1778 or @entity706 . The @entity2286 to specify @entity3554 depends on @entity5 subtype.
