Prevalence of dural @entity50 and XXXX in a generalized population.

@entity1 @entity850 @entity509 @entity392 @entity2458 @entity717 @entity10 @entity50 @entity5576
BACKGROUND AND PURPOSE: While recent literature has described the prevalence of @entity2458 in @entity1 with @entity5576 , @entity392 , and @entity10 , it is unclear what the prevalence is in the general population. This study evaluates the prevalence of @entity50 and @entity509 in the general @entity1 population. MATERIALS AND METHODS: 355 of 600 consecutive @entity1 who underwent CT angiography of the head met the inclusion criteria. The diameters of the dural venous sinuses were recorded. Each study was evaluated by a neuroradiologist for the presence of stenoses. Univariate and multivariate statistical analyses were performed by a statistician. RESULTS: The prevalence of unilateral @entity2458 or @entity509 in a sample of @entity1 representing the general population was 33%, the prevalence of bilateral @entity2458 was 5%, and the prevalence of @entity850 with @entity717 was 1%. A multivariate analysis identified arachnoid granulations as a predictor of @entity850 (p<0.001). Gender trended toward significance (p=0.094). Race was not a significant predictor of @entity850 (p=0.745). CONCLUSIONS: The prevalence of bilateral @entity2458 in the general population is not trivial. These data may be used as a reference for understanding the mechanistic role of stenoses in @entity5576 , @entity392 , and @entity10 .
