Diffusion-Weighted Magnetic Resonance Imaging in Superior Sagittal Sinus Thrombosis

Wasay, Mohammad; Bakshi, Rohit; Bobustuc, George C.; Dubey, Neeraj; Cheema, Zahid; Dai, Alper

doi:10.1177/10528402012003009

Cited by 7 publications

(5 citation statements)

References 12 publications

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“…We believe that stroke-like presentations with only slightly reduced or elevated ADC values on DWI scans should be treated with caution and raise the possibility of atypical causes such as venous stroke or nonvascular diseases ( Fig 5). 55 DWI of intravascular clots has been recently reported in the literature. 56 A hyperintense signal involving sinuses or veins on DWI (HSVdwi) was detected in 41% of the cases with CVT.…”

Section: Diffusion-weighted Imagingmentioning

confidence: 99%

Neuroimaging of Cerebral Venous Thrombosis

Wasay

2005

Journal of Neuroimaging

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Early and accurate diagnosis of cerebral venous thrombosis (CVT) is possible with the help of computed tomography (CT) scan and magnetic resonance imaging (MRI). Empty delta sign on postcontrast CT is present in only up to 30% of the cases. The role of CT venography is not yet established, but it is emerging as an effective modality for diagnosis of CVT. T2* MRI sequence is superior to spin echo in detecting CVT and small hemor rhages. MR venography is considered the technique of choice for diagnosis and follow-up of CVT, but in certain cases, MRI could be superior as it shows the thrombus itself and not just the absence of signal as seen on MR venography. Diffusion-weighted imaging is a relatively new MRI technique that is extremely sensitive in detecting acute arterial strokes and can distinguish cytotoxic and vasogenic edema. The presence of hyperintense signal on diffusion-weighted imaging in the occluded veins or sinuses at the time of diagnosis may predict a low rate of vessel recanalization. Contrast angiography should be strongly considered if isolated cortical vein thrombosis is suspected.

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Section: Diffusion-weighted Imagingmentioning

confidence: 99%

Neuroimaging of Cerebral Venous Thrombosis

Wasay

2005

Journal of Neuroimaging

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“…Diffusion-weighted MRI (DWI) can detect changes in random water diffusion (Brownian motion), offering a unique method to assess tissue damage in neurologic diseases with a higher sensitivity than conventional MRI. 8,14,[17][18][19][20][21][22] Pathologic processes that alter the normal barriers to water diffusion in the brain (axons, cell membranes, etc) result in increased or decreased water motion that can be detected by DWI in a quantitative fashion by determining the apparent diffusion coefficient (ADC). MS pathologic changes typically result in increased ADC values compared to normal individuals; such increases correlate with disease severity.…”

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confidence: 99%

Thalamic Involvement in Multiple Sclerosis: A Diffusion-Weighted Magnetic Resonance Imaging Study

et al. 2003

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“…Beyin BT incelemesi genellikle ilk başvurulan görüntüleme yöntemidir. BT bazen hiperdens tromboze sinüsü tespit etmesine rağmen genellikle vakaların üçte birinde klinik başlangıçtan sonraki ilk 3 gün içinde normaldir 1,7 SVT'nin klinik belirtileri non-spesifiktir ve belirti vermeden gizli kalabilir. Ayrıca aşırı değişken klinik prezantasyon ve başlangıç bulguları gösterebilir.…”

Section: Discussionunclassified

“…Epileptik nöbet, papil ödemi, baş ağrısı, şuur kaybı, letarji veya fokal nörolojik defisitler gibi bulguların klinikte görülmesine rağmen tanısı her zaman rahat konulamayan bir hastalıktır 5,6 . Magnetik rezonans görüntüleme (MRG), beyin bilgisayarlı tomografisi (BT) ve MR venografi, SVT tanısında kullanılan görüntüleme yöntemleridir 7,8 .…”

Section: Introductionunclassified

A Case of Cerebral Venous Thrombosis Complaining Headache Without Any Neurological Sign

Özdemir¹,

Karavaizoğlu²,

Menekşe³

2015

Sakarya Med J

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ÖzetSerebral venöz tromboz klinik semptom ve bulgularının çeşitliliği nedeniyle başlangıçta tanı konulması zor olan bir hastalıktır. Yaklaşık % 30 olguda neden tespit edilemez. Klinik spektrum, izole baş ağrısından fokal defisit, nöbet ve komaya kadar değişebilir. Beynin magnetik rezonans görüntüleme (MRG) ve venografisi, ilk tercih edilecek görüntüleme yöntemleridir. Sadece hastaları bilgisayarlı tomografi (BT) çekerek değerlendirmek, vakaların atlanmasına neden olabilir. Burada 12 yaşında yaklaşık 3 haftadır baş ağrısı nedeniyle birden fazla dış merkez tarafından değerlendirilen ve beyin görüntülemelerinde patoloji bulunamayan bir hasta, beyin MRG'sinin kliniğimizde tekrar değerlendirilmesinde serebral venöz tromboz saptanması nedeniyle sunulmaktadır. Hastalığın klinik seyrinin değişken olması ve nonspesifik bulgularla başvurulabileceğinden tanı koymada güçlük yaşanabileceği unutulmamalıdır. (Sakarya Med J 2015, 5(4):215-219) Anahtar Kelimeler: Serebral venöz tromboz, baş ağrısı, çocuk, nöroradyolojik görüntüleme AbstractCerebral venous thrombosis is difficult to diagnose due to variety of clinical symptoms and signs in the beginning of the disease. Approximately 30% of the etiological reasons are still unknown. Clinical spectrum of the disease varies from isolated headache to focal deficit, seizure and even coma. Magnetic resonance imaging (MRI) and venography of brain are firstly preferred among the imaging techniques. Solely computed tomography (CT) imaging of brain might overlook the diagnosis of the case. Here, 12-year-old patient complaining headache for the last 3 weeks whom was evaluated by a few outside hospitals which could not find any pathology in brain images radiologically is presented; since he was diagnosed by cerebral venous thrombosis when re-evaluated by our radiology staff. The diagnosis of cerebral venous thrombosis might be missed and problematic when brain MRI and CT are evaluated by inexperienced medical personnel. (Sakarya Med J 2015, 5(4):215-219)

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Diffusion-Weighted Magnetic Resonance Imaging in Superior Sagittal Sinus Thrombosis

Abstract: Acute cerebral venous strokes may contain cytotoxic edema and/or vasogenic edema on DWI scans. DWI may be helpful in diagnosing cerebral venous thrombosis in cases with cryptic presentations.

Cited by 7 publications

References 12 publications

Neuroimaging of Cerebral Venous Thrombosis

Neuroimaging of Cerebral Venous Thrombosis

Thalamic Involvement in Multiple Sclerosis: A Diffusion-Weighted Magnetic Resonance Imaging Study

A Case of Cerebral Venous Thrombosis Complaining Headache Without Any Neurological Sign

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