Cerebral venous sinus thrombosis
Author:
Mikael Häggström [notes 1]
Contents
Planning
Choice of investigation
In suspected cerebral venous sinus thrombosis (CVST), computed tomographic venography (CTV), magnetic resonance venography (MRV), and digital subtraction angiography (DSA) have similar accuracies in the diagnosis.[1] Main advantages of MRI include rapid image taking and not being contraindicated in patients with for example a pacemaker. MRV, on the other hand, has a greater sensitivity in detecting parenchymal lesions.[1] A study from India has suggested CTV as an initial investigation of suspected CVST, with MRV being the next step in patients with equivocal findings on the CTV.[2]
Evaluation
On CTV, a CVST is seen as a contrast filling defect:
CT venogram showing a filling defect in the sagittal sinus (black arrow)
A dural venous sinus thrombosis of the transverse sinus. Greater on the right than left.
References
- ↑ 1.0 1.1 Mahesh R Patel. Brain Imaging in Venous Sinus Thrombosis. Updated: Feb 25, 2018
- ↑ Issar P, Chinna S, Issar SK (2017). "Evaluation of Cerebral Venous Thrombosis by CT, MRI and MR Venography. ". J Assoc Physicians India 65 (11): 16-21. PMID 29322704. Archived from the original. .
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