Dural Venous Sinus Variations Observed in Magnetic Resonance Venography at a Tertiary Care Hospital: An Observational Study

Authors

  • Sharma Paudel Department of Radiology and Imaging, Tribhuvan University Teaching Hospital, Maharajgunj, Kathmandu, Nepal
  • Ramswarth Sah Department of Radiology and Imaging, Tribhuvan University Teaching Hospital, Maharajgunj, Kathmandu, Nepal
  • Rakesh Kumar Singh Department of Radiology and Imaging, Tribhuvan University Teaching Hospital, Maharajgunj, Kathmandu, Nepal
  • Prakash Kayastha Department of Radiology and Imaging, Tribhuvan University Teaching Hospital, Maharajgunj, Kathmandu, Nepal
  • Shailendra Katwal Department of Radiology and Imaging, National Trauma Center, Mahankal, Kathmandu, Nepal

DOI:

https://doi.org/10.31729/jnma.8795

Keywords:

anatomical variations, dural sinuses, magnetic resonance venography

Abstract

Introduction: The dural venous system, composed of various sinuses, plays a crucial role in draining deoxygenated blood from the central nervous system. Understanding its anatomical variations is essential to differentiate it from pathological conditions like cerebral venous sinus thrombosis. This study aims to evaluate the anatomical variations of the dural venous sinuses using Magnetic Resonance Venography.
Methods: An observational, cross-section study was performed in the Department of Radiology from September 2023 to March 2024 after the approval by the Institutional Review Committee (Reference number: 149/080/081(6-11)E2). Magnetic Resonance Venography of 109 adult patients was performed using a 1.5 Tesla MRI scanner. Diameters of the superior sagittal sinus, straight sinus, and transverse sinuses were measured. Variations in transverse sinuses, straight sinus, and confluence were categorized and analyzed.
Results: The study included 52 (47.70%) male and 57 (52.30%) female, with median age of 42 (IQR: 30.5 - 56) years. The superior sagittal sinus had the diameter of 6.4±1 mm. Symmetric transverse sinus variant seen was in 80 (73.39%) patients, and left transverse sinus hypoplasia was seen in 20 (18.35%) patients. Variations in the straight sinus and confluence were also documented with a true confluence (type III) was seen in 71 (65.10%) patients.
Conclusions: Anatomical variations of the dural venous sinuses as observed in 1.5 Tesla MRI was quite common.

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Published

2024-10-31

How to Cite

Paudel, S., Sah, R., Singh, R. K., Kayastha, P., & Katwal, S. (2024). Dural Venous Sinus Variations Observed in Magnetic Resonance Venography at a Tertiary Care Hospital: An Observational Study. Journal of Nepal Medical Association, 62(279), 720–724. https://doi.org/10.31729/jnma.8795

Issue

Vol. 62 No. 279 (2024): JNMA: Published Monthly

Section

Original Article

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Copyright (c) 2024 Sharma Paudel, Ramswarth Sah, Rakesh Kumar Singh, Prakash Kayastha, Shailendra Katwal

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