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Gadolinium-Enhanced MR Imaging of Cerebral Venous Angiomas with Enphasis of Their Drainage J Comput Assist Tomogr 15:199-206, Wilms,G.,et al, 1991 See this aricle in Pubmed Article Abstract Gadolinium-enhanced MR was performed in 28 patients with 17 supratentorial and 11 cerebellar venous angiomas.The use of gadolinium allowed detection of 9 of 28 venous angiomas(32%)that were not visible before gadolinium or which were only recognized in retrospect.Before gadolinium the peripheral medullary veins that are typical for these venous malformations were only visualized in 4 of 17(23%)supratentorial and in 5 of 11(45%)cerebellar lesions,for a total of 9 of 28(32%)venous angiomas.After intravenous administration of gadolinium these veins were seen in 27 of 28(96%)venous angiomas.Extension of the lesions to the wall of the ventricles was seen in 24 of the 28,16 of 17 supratentorial and 8 of 11 cerebellar,lesions after gadolinium.This information was missed on plain MR in 6 of these lesions.The type of venous drainage,either superficial or deep,could be determined by gadolinium-enhanced MR in all cases where angiography was available in eight patients.The intravenous administration of gadolinium adds significant information in the MR study of venous angioma.

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