Effects of Betahistine HCI, Nicotinic Acid, and Histamine on Basilar Blood Flow in Anesthetized Dogs • An intermandibular-transclival approach to the posterior cranial fossa has been developed which allows exposure of the basilar artery for attachment of a small electromagnetic blood flow transducer. The results of single intravenous injections of betahistine hydrochloride indicated a mean incr...

Effects of Betahistine HCI, Nicotinic Acid, and Histamine on Basilar Blood Flow in Anesthetized Dogs • An intermandibular-transclival approach to the posterior cranial fossa has been developed which allows exposure of the basilar artery for attachment of a small electromagnetic blood flow transducer. The results of single intravenous injections of betahistine hydrochloride indicated a mean incr...

Normal high-resolution computed tomographic (CT) scans of 126 patients were reviewed to define the diameter, height of the bifurcation, and transverse position of the normal basilar artery. The mean diameter of the normal basilar artery is 3.17 mm at the level of the pons. In 92% of normal subjects, the basilar bifurcation is located in the interpeduncular cistern adjacent to the dorsum sellae ...

We report a case of successful endovascular treatment of bilateral carotid artery occlusion with concurrent basilar apex aneurysm. An elderly female patient with subarachnoid hemorrhage (SAH) onset was admitted to the hospital. Computed tomography (CT) and digital subtraction angiography (DSA) confirmed the presence of bilateral carotid artery occlusion with concurrent basilar apex aneurysm. Br...

BACKGROUND AND PURPOSE Transcranial Doppler sonography is of established value in the detection and monitoring of middle cerebral artery vasospasm. Little information exists on the utility of transcranial Doppler for detection of posterior circulation vasospasm. METHODS Cerebral angiography and conventional hand-held transcranial Doppler sonography were compared to determine sensitivity and s...

This study aimed to describe the brain base arteries of Myrmecophaga tridactyla using ten cadavers adults from this species, including five male and female specimens. The arterial vascular bed was perfused via thoracic aorta with a dyed natural latex solution, animals were fixed preserved 10% formaldehyde buffered solution. encephala removed, their vessels dissected. Basilar artery formation oc...

We investigated the in vivo vasoconstrictor effect of endothelin, a recently characterized vasoconstrictor peptide from vascular endothelium, in the basilar arteries of five cats and five dogs. Basilar artery caliber was angiographically measured under anesthesia before (control) and after either vertebral artery infusion or cisternal injection of the peptide. In cats, 5-500 pmol endothelin ind...

Basilar artery fenestration is infrequent and even rarer in association with a large aneurysm. With proximity to brain stem and vital perforators, endovascular coiling can be considered first. If the large ruptured aneurysm with a wide neck originated from fenestra of the proximal basilar artery and the fenestration loop has branches of posterior circulation, therapeutic consideration should be...

Recanalization of the basilar artery is not always achieved with intraarterial fibrinolysis. We report two cases of thromboaspiration in the basilar artery in which recanalization with fibrinolysis was successful. Thromboaspiration requires favorable anatomy and a fresh nonadhesive clot. It reduces the time for recanalization, has no hemorrhagic risk, and may prevent distal clot migration. Thro...

Introduction: Basilar artery is a single trunk, formed at the pontomedullary junction, by joining two vertebral arteries. It runs in the median groove of Pons, in the subarachnoid space. It ends by dividing into right and left posterior cerebral arteries, at the upper border of pons.The sound knowledge of morphology and variations of basilar artery and its branches not only help radiologist, in...