Vertebral Arteries
A prospective comparison of duplex sonography vs angiography of the vertebral arteries
... Thirty-two vertebral arteries were studied for direction of flow, degree of origin plaque or stenosis, Doppler characteristics, and vessel size.. The vertebral arteries were rel iably id[r] ...
6
Lower Arterial Cross Sectional Area of Carotid and Vertebral Arteries and Higher Frequency of Secondary Neck Vessels Are Associated with Multiple Sclerosis
... Neck vessels were examined at 4 separate cervical levels, in- cluding C2/C3, C4, C5/C6, and C7/T1. At first, 2 trained opera- tors (P.B. and C.M., each with a minimum of 5 years of experi- ence) determined the CSA of the ...
8
Blood Flow Volume Quantification in Internal Carotid and Vertebral Arteries: Comparison of 3 Different Ultrasound Techniques with Phase Contrast MR Imaging
... The internal carotid and vertebral arteries of 40 volunteers were evaluated with CDI, PDI, B-flow US, and MR phase-contrast imag- ing. Twenty-one of the subjects were women and 19 were men. The mean patient ...
7
Self expanding nitinol stents in canine vertebral arteries: hemodynamics and tissue response
... of vertebral arteries ...five arteries remained patent without significant narrowing ( # ...the vertebral arteries within the stented segments remained ...nonatherosclerotic ...
9
Ascending and Descending Thoracic Vertebral Arteries
... Thoracic vertebral arteries are anastomotic chains similar to cervical vertebral arteries but found at the thoracic ...thoracic vertebral arteries originate from the ...
9
Are the anomalous vertebral arteries more hypoplastic?: retrospective linear mixed model approach
... longitudinal anastomoses of the cervical intersegmental arteries contribute to the development of the vertebral artery (VA) which, in turn, is connected to the subclavian artery [11, 12]. The exact nature ...
7
Endothelium dependency of contractile activity differs in infant and adult vertebral arteries
... infant arteries are attenuated because of increased prostaglandin activity not observed in adult ...infant vertebral artery, but in the adult artery, nitric oxide is linked to the vasodilator ...
6
Two case reports of bilateral vertebral artery tortuosity and spiral twisting in vascular vertigo
... the vertebral arteries, and bilateral spiral twisting in the V4 segments of the vertebral arteries without obvious atherosclerotic stenosis (Figure ...
5
One-year follow-up in patients with brainstem infarction due to large-artery atherothrombosis
... This study was carried out at the Department of Neurology, Bezmialem Vakıf University, between January 2012 and April 2013 involving 101 patients with brainstem infarction among a total of 826 patients admitted with a ...
6
Altered vertebrobasilar flow in children: angiographic, MR, and MR angiographic findings
... with vertebral artery dissection (patients 1 and ...four vertebral body levels in these two patients because of angiographically documented slow ...both vertebral arteries in patient 2 and ...
7
Normal Cerebral Blood Flow Volume in Healthy Nigerian Adults
... A lot of previous studies had measured cerebral blood flow to the brain using various imaging modalities [2,5,6,8,10,20] but ultrasound was found to be excellent [2,5,6,10,18]. It is cheap, readily available, ...
11
Compensatory patterns of collateral flow in stroke patients with unilateral and bilateral carotid stenosis
... the vertebral arteries to the collateral pathways in patients with symptomatic ICA stenosis ...and vertebral blood flow volume (BFV), which has been suggested as an es- timate of total cerebral BFV ...
6
Evidence that the brain of the conscious dog is insulin sensitive
... hypoglycemia. Experiments were carried out on 15 conscious 18-h-fasted dogs. Insulin was infused (2 mU/kg per min) in separate, randomized studies into a peripheral vein (n = 7) or both carotid and vertebral ...
11
RESPONSE OF VERTEBRAL ARTERY BLOOD FLOW TO LASER IN ELDERLY WITH CERVICAL SPONDYLOSIS
... on vertebral artery (VA) is caused by the influence of cervical ...of vertebral arteries and carotids especially in patients suspected to have or suffering from any cerebrovascular ...
7
Combined Stent Placement and Thrombolysis in Acute Vertebrobasilar Ischemic Stroke
... the vertebral artery origin (11, ...frequently vertebral artery origin) allows collateral flow to the basilar system, thereby buying time through enhanced cerebral circulation during thrombolysis and ...
7
Blood flow dynamics in the vertebrobasilar system: correlation of a transparent elastic model and MR angiography
... Quantitative studies with 2-D cine phase contrast were performed in the axial plane at two levels in the model: 1 at the straight segment of the vertebral arteries proximal to the cervic[r] ...
13
In Re: Amundsen P Cerebral angiography via the femoral artery with particular reference to cerebrovascular disease Acta Neurol Scand 1967; Suppl 31:115
... direct vertebral angiog- raphy had been abandoned because of their com- plications, direct left carotid cannulations ...right vertebral arteries might even be selectively catheterized from the ...
6
A case of vertebral arteriovenous fistula in a patient undergoing maintenance hemodialysis
... and vertebral arteries, which detected a mosaic pattern of bloodstream in the right vertebral artery with a high peak systolic velocity of ...
7
Three Dimensional (3D) Computed Tomography Angiography (CTA) study of Vertebral Artery (VA) Course at Craniovertebral Junction (CVJ) in Patients with CVJ Bony Pathology
... the vertebral arteries in C1 and C2 are simply grooves at 45 days of ...The vertebral arteries run vertically in these grooves. The vertebral foramina fully develop by 58 days of ...
62
A Study of Posterior Circulation Ischemic Stroke in 80 Patients : Clinical Manifestations, Risk Factors, Imaging Studies and Outcome
... Duplex investigations :- Duplex imaging of the extracranial carotid and vertebral arteries is easy, and noninvasive. It can provide information on a possible arterial source of emboli and on arterial ...
75