Brush Sign Is Associated With Increased Severity in Cerebral Venous Thrombosis.

Aguiar de Sousa, Diana; Lucas Neto, Lia; Jung, Simon; Penas, Sara; Panos, Leonidas; Heldner, Mirjam Rachel; Fischer, Urs; Arnold, Marcel; Canhão, Patrícia; El-Koussy, Marwan; Ferro, José M; Hakim, Arsany (2019). Brush Sign Is Associated With Increased Severity in Cerebral Venous Thrombosis. Stroke, 50(6), pp. 1574-1577. American Heart Association 10.1161/STROKEAHA.119.025342

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Background and Purpose- The brush sign (BS) is an abnormally accentuated signal drop of the subependymal and deep medullary veins in paramagnetic-sensitive magnetic resonance sequences, previously described in acute ischemic stroke. We aimed to describe the BS in patients with thrombosis of the cerebral veins and sinuses and explore its association with clinical severity, thrombosis extent, parenchymal brain lesion, and clinical prognosis. Methods- We assessed consecutive adult patients admitted to 2 university hospitals with diagnosis of acute thrombosis of the cerebral veins and sinuses and imaging assessment with magnetic resonance imaging, including paramagnetic-sensitive sequences. Demographics, imaging findings, clinical presentation, and functional outcome at 3 months were analyzed according to the presence of BS. Results- In 118 patients included, BS was observed in gradient-echo T2*weighted (T2*WI) in 16% and susceptibility-weighted imaging in 13% of cases. All patients with BS had thrombosis of the superior sagittal sinus, straight sinus, or deep venous system. BS was associated with ipsilateral parenchymal lesion (odds ratio, 6.4; 95% CI, 1.9-21.1; P=0.002) and higher thrombus load (median [interquartile range] 5 [4-6] versus 2 [2-4]); P<0.0001). BS was also associated with focal neurological deficits (OR 4.2; 95%CI, 1.4-12.7, P=0.01). The functional outcome at 3 months was not significantly different in patients with BS. Conclusions BS in T2*WI and susceptibility-weighted imaging was observed in approximately one in 7 patients with acute thrombosis of the cerebral veins and sinuses. BS was significantly associated with ipsilateral parenchymal brain lesion, extent of thrombosis, and manifestation with focal neurological deficits. This suggests that BS can represent a marker of severity in thrombosis of the cerebral veins and sinuses.

Item Type:

Journal Article (Original Article)


04 Faculty of Medicine > Department of Radiology, Neuroradiology and Nuclear Medicine (DRNN) > Institute of Diagnostic and Interventional Neuroradiology
04 Faculty of Medicine > Department of Head Organs and Neurology (DKNS) > Clinic of Neurology

UniBE Contributor:

Jung, Simon, Panos, Leonidas, Heldner, Mirjam Rachel, Fischer, Urs Martin, Arnold, Marcel, El-Koussy, Marwan, Hakim, Arsany


600 Technology > 610 Medicine & health




American Heart Association




Martin Zbinden

Date Deposited:

18 Jul 2019 09:54

Last Modified:

02 Mar 2023 23:32

Publisher DOI:


PubMed ID:


Uncontrolled Keywords:

cerebral veins collateral circulation magnetic resonance imaging neurologic manifestations venous thrombosis




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