Normal Variant Anatomy in MR Cerebral Venography - A Retrospective Study

Purpose: Knowledge of anatomical variations in the cerebral dural venous sinus anatomy seen on magnetic resonance cerebral venography (MRV) on GE 3 Tesla is essential to avoid over-diagnosis of cerebral venous sinus thrombosis (CVST). Limited data is available on gender difference of the cerebral dural venous sinus anatomy variations. Materials and Methods: A retrospective study was conducted in D.Y.Patil medical college Kolhapur in the Department of Radiodiagnosis for a duration of 3 years to study the normal anatomy and anatomical of variants the intracranial venous system, as depicted by 3D MR venography, in normal adults and any gender-related differences. Results: A total of 150 (70 men, 80 women, age range 16 to 85 years), were included in the study. Most common indication for MR venography was headache (70%). Hypoplastic left transverse sinus was the most common anatomical variation in (30%) patients. Left transverse sinus was hypoplastic in more commonly in male in comparison to females (35 versus 25 ). Most common variation of superior sagittal sinus (SSS) was hypoplastic anterior one third SSS ,. Conclusion: The most common anatomical variation is Hypoplastic left transverse sinus and more common in male compared to female in the present study. The anatomical variants of orther dural venous sinuses are not signicantly differ among both genders