Imaging feature analysis of cerebral venous sinus thrombosis

doi:10.3877/cma.j.issn.2095-655X.2019.01.003

Abstract

Abstract:

Objective

To explore the CT and MRI features of cerebral venous sinus thrombosis (CVST).

Methods

From November 2014 to March 2018, the clinical and imaging data of 14 patients with CVST diagnosed by clinical follow-up in the Department of Neurology of Fengxian People′s Hospital were retrospectively analyzed. All patients underwent plain CT and plain MR scan, 3 patients also underwent MRI enhancement scans, 5 patients had MRV and 2 patients had MRA examination data. The involvement area and surrounding conditions, plain scan density or signal characteristics and intracranial associated changes of the CVST were observed.

Results

All cases involved more than 2 sinusoids. Plain MRI revealed a hyperintense signal on T2WI and FLAIR in the affected sinuses in all patients, 7 patients were found with high density in the affected sinuses in the plain CT scan, and a hyperintense signal or mixed signal on the T1WI in the involved sinuses in 10 cases. The features of the three enhanced MRI cases were partial enhancement (n=1) and complete enhancement (n=2). CT and MRI revealed 1 case of hemorrhagic in left temporal lobe 2 cases of space-occupying lesions parasagittal meningiomas, 1 case of hemorrhagic infarction in thalamic and 2 cases of cortical subarachnoid hemorrhage. MRV showed that the involved venous sinuses were irregularly developed, stenosis or completely undeveloped, and collateral compensatory vascularization.

Conclusions

CVST can be displayed by MRI and be partially displayed by CT, and its possible intracranial lesions can be displayed by CT or MRI. Recognizing the characteristics of CVST in the responsible venous sinus and its possible intracranial lesions on plain CT and plain MRI and combining with MRV examination are helpful for accurate diagnosis.

Key words: Cerebral venous sinus, Thrombosis, Magnetic resonance imaging

Guangtong Xie, Changqing Ding, Xuelu Wang, Linpeng Bai. Imaging feature analysis of cerebral venous sinus thrombosis[J]. Chinese Journal of Diagnostics(Electronic Edition), 2019, 07(01): 11-16.

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