A and B, The superior sagittal sinus (straight arrow), straight sinus (arrowhead), and vein of Galen (curved arrow) are clearly depicted, and were seen.

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Presentation transcript:

A and B, The superior sagittal sinus (straight arrow), straight sinus (arrowhead), and vein of Galen (curved arrow) are clearly depicted, and were seen in all 100 cases studied, without flow gaps. A and B, The superior sagittal sinus (straight arrow), straight sinus (arrowhead), and vein of Galen (curved arrow) are clearly depicted, and were seen in all 100 cases studied, without flow gaps. C and D, The right vein of Labb´e (C, arrow) was seen in 91% of the cases. The right vein of Trolard (D, arrow), depicted as a large tributary to the superior sagittal sinus, was seen in only 37% of the cases. R. H. Ayanzen et al. AJNR Am J Neuroradiol 2000;21:74-78 ©2000 by American Society of Neuroradiology