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Published on: July 5, 2021
Para-cavernous sinus venous structures: anatomic variations and pathologic conditions evaluated on fat-suppressed 3D
S Tanoue1, H Kiyosue, M Okahara
1Department of Radiology, Oita University Faculty of Medicine, Oita, Japan.
AJNR. American Journal of Neuroradiology
|May 12, 2006
Summary
This study reveals common drainage patterns of the superficial middle cerebral vein (SMCV) and sphenoparietal sinus (SPS) using MR imaging. Understanding these venous variations is crucial for diagnosing and treating skull base lesions.
Area of Science:
- Radiology
- Neuroimaging
- Vascular Anatomy
Background:
- The cavernous sinus connects to surrounding venous structures, including the superficial middle cerebral vein (SMCV) and sphenoparietal sinus (SPS).
- Anatomical variations in these para-cavernous sinus veins are known, but specific details, like the SMCV-SPS relationship, require further characterization.
- Evaluating these variations is important for understanding venous drainage in the skull base.
Purpose of the Study:
- To evaluate the anatomical variations of para-cavernous sinus veins, focusing on the drainage patterns of the SMCV.
- To assess the utility of fat-suppressed contrast-enhanced 3D fast gradient-echo MR imaging in visualizing these structures.
Main Methods:
- Thirty-seven patients underwent fat-suppressed contrast-enhanced 3D fast gradient-echo MR imaging.
- Two neuroradiologists analyzed the images for normal anatomy and pathological findings of para-cavernous sinus veins.
Main Results:
- MR imaging clearly depicted para-cavernous sinus venous structures in all patients.
- Four SMCV drainage patterns were identified, with 39% draining into the SPS.
- Three SPS variations were observed, with 72% draining into the cavernous sinus.
Conclusions:
- Fat-suppressed 3D fast gradient-echo MR imaging is effective for evaluating skull base venous structures.
- Knowledge of these venous variations is essential for accurate diagnosis and endovascular treatment of cavernous sinus pathologies.
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