2010年10月21日 · The empty delta sign is a finding that is seen on a contrast enhanced CT (CECT) and was first described in thrombosis of the superior sagittal sinus. The sign consists of a triangular area of enhancement with a relatively low-attenuating center, which is …

2025年3月12日 · Cerebral venous thrombosis (CVT) (plural: thromboses) refers to the occlusion of venous channels in the cranial cavity, including dural venous thrombosis, cortical vein thrombosis and deep cerebral vein thrombosis. They often co-exist and the clinical presentation among them is very similar and non-specific.

2019年10月7日 · Cerebral venous thrombosis (CVT) is uncommon, representing approximately 0.5% of all cases of cerebrovascular disease worldwide. Many factors, alone or combined, can cause CVT. Although CVT can occur at any age, it most …

2020年5月1日 · Cerebral vein thrombosis (CVT) is a rare presentation of venous thromboembolism. Prompt and accurate diagnosis is essential as delayed recognition and treatment may lead to permanent disability or even death. Since no validated diagnostic algorithms exist, the diagnosis of CVT mainly relies on neuroimaging.

2018年5月11日 · This review article aims to discuss the pathophysiology, clinical presentation, and neuroimaging of cerebral venous thrombosis (CVT). Different approaches for diagnosis of CVT, including CT/CTV, MRI/MRV, and US will be discussed and the reader will become acquainted with imaging findings as well as limitations of each modality.

2022年11月4日 · In this study we aimed to investigate the diagnostic value of multi-detector brain CTA in diagnosing acute CVT and compared it with contrast-enhanced MRV as the reference standard. This...

2018年5月28日 · CVT refers to thrombotic occlusion of cerebral venous system which includes deep venous system, superficial venous system and dural venous sinuses. 1 CVT is a relatively uncommon condition with extremely variable clinical presentations, predisposing factors, imaging findings and outcomes.

Cerebral venous thrombosis (CVT) is defined as the presence of a thrombus within a venous sinus, superficial intracranial vein, or deep intracranial vein. It is an uncommon condition that is potentially reversible if diagnosed and treated appropriately and promptly.

2024年1月12日 · Contrast-enhanced MR venography (CE-MRV) is the imaging modality of choice for CVT. CE-MRV is superior to non-contrast MRV with highest accuracy, sensitivity and specificity in the diagnosis of CVT as it is not affected by flow abnormalities in cases of non-dominant sinuses and chronic CVT [27, 28]. Bright sinus sign (Fig. 12)

2022年7月6日 · Venous thrombosis may cause involvement of multiple areas of the brain that extend across numerous different arterial circulations. This may help differentiate a venous thrombosis from an arterial occlusion. Dural venous sinuses lack valves, allowing the flow of blood in various directions.