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Table 2:

Signal intensity of venographically normal venous segments on gradient recalled-echo images

Venous SegmentHyperintense n (%)Isointense n (%)Hypointense n (%)
SSS10 (76.9)3 (23.1)0 (0)
MTS6 (46.1)4 (30.8)3 (23.1)
LTS6 (46.1)3 (23.1)4 (30.8)
SS12 (92.3)1 (7.7)0 (0)
CV0 (0)0 (0)13 (100)
  • Note:—SSS indicates superior sagittal sinus; MTS, medial transverse sinus; LTS, lateral transverse sinus; SS, sigmoid sinus; CV, cerebral cortical veins. Signal intensity is most prominent signal intensity graded relative to normal gray matter.