Three-dimensional phase contrast MR cerebral venography with zero filling interpolation in the slice encoding direction

The purpose of this study was to evaluate the magnetic resonance (MR) cereb ral venography findings of a three-dimensional phase contrast MR sequence w ith zero filling interpolation of the data in the slice encoding direction. Fifty volunteers were enrolled in the study. Images were obtained on a 1.5 MR imaging system with acquisition time of 12 min. MIP images were reconst ructed throughout the entire imaging volume. A grading scale system was use d to assess dural venous sinuses, major deep veins, cortical, and cortical eponymic veins, Inferior group of dural venous sinuses, inferior sagittal s inus, and cortical eponymic veins were pearly demonstrated. Score of the su perior sagittal sinus, the straight sinus, the confluence of the superior s inus group, the right transverse and sigmoid sinuses, the internal veins, a nd the vein of Galen was excellent. The score of the left transverse and si gmoid sinuses was good, In conclusion, when using zero filling interpolatio n of the data in a three-dimensional phase contrast MR cerebral venography sequence, the superior group of dural venous sinuses and main major deep ve ins are demonstrated with good conspicuity. (C) 1999 Elsevier Science Inc.