AIM To present the application of volume rendering technique (VRT) computed tomography (CT) scan in cranio-vertebral junction (CVJ) surgeries. MATERIAL AND METHODS The authors used VRT images CT patients congenital CVJ anomalies who were subjected to various surgeries through midline posterior approach. screw entry points and courses vertebral arteries identified relation landmarks on images, p...

The persistent proatlantal artery is a well-described communication between the carotid and vertebrobasilar system. However, persistence of bilateral proatlantal arteries is exceptionally rare. Although usually noted as an incidental finding, the presence of a proatlantal artery, particularly when bilateral, may result in unusual symptoms or may have implications for therapy. We report a case o...

Endovascular balloon embolization therapy tor neurovascular lesions was first described by Serbinenko in 197 4 [1). With improved technology, including detachable balloons, minicatheters, permanently solidifying agents, and real-time digital subtraction angiography, it is now possible to treat intracranial arterial aneurysms from an endovascular approach in selected cases [2, 3] . In the case r...

Dissection of craniocervical arteries internal carotid artery (ICA), or vertebral artery (VA) is an increasingly recognized entity and infrequent cause of stroke. We investigated 8 patients (4 women and 4 men) with dissections of the craniocervical arteries. Diagnostic procedures for detection of craniocervical dissection included: extracranial ultrasound-color Doppler flow imaging (CDFI) of ca...

BACKGROUND AND PURPOSE The etiology of spontaneous cervical artery dissection (sCAD) is still unknown, even though an underlying arteriopathy impairing vasomotion has often been suspected. This study was undertaken to investigate: (1) spontaneous, (2) endothelial-dependent, and (3) endothelial-independent vasodilation in patients with multiple sCAD. METHODS In 19 consecutive patients with mul...

The aim of our study was to determine the prevalence of anatomical variants of bronchial arteries using computed tomographic angiography in a population of northeastern Mexico. An observational, transversal, descriptive, comparative, retrospective study was performed using 139 imaging studies of Mexican patients in which we evaluated the following parameters from the left and right bronchial ar...

The difficulty of catheterizing markedly tortuous vertebral arteries is well known to cerebral angiographers. When catheterization by the transfemoral approach fails, a left retrograde brachial flush injection or transax illary vertebral catheterization may be performed as alternative techniques in opacifying posterior fossa vessels . These additional approaches can be obviated by using a J tip...