Throughout the last two decades, MRI has been ameliorated by a dramatic increase in the field strength; from 0.015 to 7 Tesla (T) MR systems. Ultrahigh-field MR system (beyond 3T) has great potential to produce newly improved imaging capabilities for both clinical diagnosis and basic science research. The primary purpose of venography was the description of cerebral veins, but it has also been ...

We present a very rare case of indirect cavernous carotid fistula (CCF) in a 12-year-old girl. Indirect CCF is extremely rare in the paediatric population. A 12-year-old girl presented with a 7-month history of frontal headaches and intermittent left-sided proptosis. On examination, she had dilated and engorged scleral veins on the left eye, mild dysdiadochokinesia and past pointing on the left...

Cerebral sinus-vein thrombosis may lead to severe hemodynamic changes, elevated intracranial pressure (ICP), and brain edema. It is supposed that progression of the thrombus from the sinus into bridging and cortical veins plays a key role in the development of these pathophysiological changes, but this hypothesis lacks experimental proof. The aim of this study, using a novel animal model of sin...

Cerebral arteriovenous malformations (AVMs) are associated with a variety of alterations in the angioarchitecture of the feeding arteries and draining veins [1-3]. Between January 1985 and December 1988 we examined the angiograms of 97 patients with cerebral AVMs to assess their potential for endovascular treatment. Two patients showed occlusion of major vessels and an associated moyamoya pheno...

Aspects of the pathogenesis of cerebral schistosomiasis have been elucidated. Arterial embolization alone, by either worms or eggs, does not appear to be likely as a major cause of the disease. When large numbers of eggs enter the brain, sensitization may play a role in the occurrence of neurological signs. These studies support but do not prove the theory that worms in the cerebral veins lay e...

A Method for Serial Measurement of Regional Cortical Metabolism and Blood Flow • There is a practical way to measure metabolism, flow, and function in a localized area of brain serially in the same animal. Our preliminary anatomical and angiographical studies have indicated that certain paired cerebral veins drain only blood from cortex supplied by easily identified cerebral arteries. These vei...

Little is known of the course and distribution of blood vessels supplying and draining the hippozampus. Such information could be of value in designing and evaluating lesion and ablation experiments and may reflect spatial properties of neurons. This study mapped the distribution of major arteries and veins of the rat hippocampal formation. Arteries and veins of adult female Wistar rats anesthe...