Intracranial Venous Disease and Stroke

Within the brain, there are several large veins that drain into the venous sinuses. Sagittal sinus thrombosis is the most serious disorder of the intracranial venous pathways. This condition frequently leads to headache (80%), swelling of the optic nerve (papilledema, 50%), motor or sensory deficits (35%), seizures (29%), hemorrhage (50%), and death (5-10%). Contrast enhanced CT scanning allowed superior sagittal sinus thrombosis to be diagnosed by showing the "empty delta'' sign. Now, MR is the preferred test, showing increased signal intensity on T1, T2, and proton density weighted images. The clot can be directly visualized using such routine MR techniques, and MRV can easily demonstrate the absence of venous blood flow caused by the thrombus. Although angiography will demonstrate the problem during the venous phase of contrast washout, MRI techniques have reduced the need for angiography for the diagnosis of sagittal sinus thrombosis.

Understanding And Treating Autism

Understanding And Treating Autism

Whenever a doctor informs the parents that their child is suffering with Autism, the first & foremost question that is thrown over him is - How did it happen? How did my child get this disease? Well, there is no definite answer to what are the exact causes of Autism.

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