2002
DOI: 10.1053/crad.2001.0880
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Magnetic Resonance Imaging of Cerebral Venous Sinus Thrombosis

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Cited by 129 publications
(113 citation statements)
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“…The combination of MR imaging showing the thrombosed vessel and MR venography (MRV) demonstrating the nonvisualization of the same vessel is considered to be the best diagnostic tool in CVT. [1][2][3] The signal intensity of venous thrombi on T1-and T2-weighted MR images varies according to the interval between the onset of thrombus formation and imaging. In the acute stage (0 -5 days), the signal intensity is predominantly isointense on T1-weighted images and hypointense on T2-weighted images and is presumably related to the appearance of deoxyhemoglobin in red cells within the thrombus.…”
mentioning
confidence: 99%
“…The combination of MR imaging showing the thrombosed vessel and MR venography (MRV) demonstrating the nonvisualization of the same vessel is considered to be the best diagnostic tool in CVT. [1][2][3] The signal intensity of venous thrombi on T1-and T2-weighted MR images varies according to the interval between the onset of thrombus formation and imaging. In the acute stage (0 -5 days), the signal intensity is predominantly isointense on T1-weighted images and hypointense on T2-weighted images and is presumably related to the appearance of deoxyhemoglobin in red cells within the thrombus.…”
mentioning
confidence: 99%
“…Angiography has long been the gold standard for diagnosis of CVST 8 which depends on non-visualization of a sinus or vein and other indirect signs such as dilated collateral veins with corkscrew appearance, delayed venous phase, collateral circulation. As a non-invasive method, magnetic resonance imaging and MR venography are regarded the best tools both for the diagnosis and follow-up of CVST 10,11 . The confirmation of CVST relies on the demonstration of the venous thrombus on MR imaging and lack of patency on MR venography.…”
Section: Discussionmentioning
confidence: 99%
“…A síndrome de hipertensão intracraniana sem hidrocefalia ou lesões de massa e com resultados normais do LCR, previamente referida como pseudotumor cerebral, agora é conhecida como hipert e n s ã o A TC ajuda a excluir distúrbios que possam simular a trombose venosa cere b r a l 1 , 7 , 1 6 , mas algumas vezes sugere o diagnóstico, na presença dos sinais do triângulo denso, do cordão, do delta vazio e a hiperdensidade do seio lateral, além de ser capaz de detectar alterações inespecíficas como edema cerebral e áreas hipo ou hiperdensas localizadas, correspondentes a infartos venosos 1,7 .…”
Section: Discussionunclassified
“…A RM deve ser realizada à procura de evidências de trombose venosa cerebral 3,17,21-23 e é o método de escolha para o diagnóstico e acompanhamento, com a vantagem da visualização direta do tro m b o nos seios durais 1 , 3 , 7 , além de fornecer inform a ç õ e s sobre o parênquima cerebral 1,2,7,12,16 . Nos estágios iniciais (<5 dias de evolução), os seios durais ocluí-dos aparecem isointensos em T1 e hipointensos em T2 1 , 7 , 1 8 .…”
Section: Discussionunclassified
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