Results 21 to 30 of about 88,829 (262)

Abstract Number: LBA13 Relationship Between Vertebral Artery Dominance And Incidence Of Embolic Basilar Artery Occlusion

open access: yesStroke: Vascular and Interventional Neurology, 2023
Introduction Vertebral artery asymmetry due to hypoplasia or early termination is common in the general population with 50% left dominance, 25% right dominance, and 25% codominance.
Abdallah Amireh   +7 more
doaj   +1 more source

A formal theory for spatial representation and reasoning in biomedical ontologies [PDF]

open access: yes, 2006
Objective: The objective of this paper is to demonstrate how a formal spatial theory can be used as an important tool for disambiguating the spatial information embodied in biomedical ontologies and for enhancing their automatic reasoning capabilities ...
Bittner, Thomas   +2 more
core   +2 more sources

Quantitative Assessment of the Anatomical Footprint of the C1 Pedicle Relative to the Lateral Mass: A Guide for C1 Lateral Mass Fixation [PDF]

open access: yes, 2017
Study Design: Anatomic study. Objectives: To determine the relationship of the anatomical footprint of the C1 pedicle relative to the lateral mass (LM). Methods: Anatomic measurements were made on fresh frozen human cadaveric C1 specimens: pedicle width ...
Byers, Robert H.   +6 more
core   +2 more sources

Extracranial Vertebral Artery Aneurysm Presenting as a Chronic Cervical Mass Lesion

open access: yesCase Reports in Medicine, 2010
Background. Aneurysms of the extracranial vertebral artery are rare and can provide a diagnostic and therapeutic challenge. Methods. We reviewed the clinical history of a patient presenting with cervical radiculopathy, who harboured an extracranial ...
Lampis C. Stavrinou   +4 more
doaj   +1 more source

Vertebral-carotid transposition can treat various diseases

open access: yesVascular Investigation and Therapy, 2020
Vertebral-carotid transposition (VCT), which is a treatment of vertebral artery stenosis, has excellent long-term efficacy. VCT can also be suitable for various situations where the blood supply of the vertebral artery must be reconstructed.
Yuanrui Gu   +3 more
doaj   +1 more source

Predicting blunt cerebrovascular injury in pediatric trauma: Validation of the Utah Score [PDF]

open access: yes, 2017
Risk factors for blunt cerebrovascular injury (BCVI) may differ between children and adults, suggesting that children at low risk for BCVI after trauma receive unnecessary computed tomography angiography (CTA) and high-dose radiation.
Akbari, Hassan   +13 more
core   +2 more sources

Nerve Root Compression Due to Contralateral Compensatory Hypertrophy: A Rare Case of Vertebral Artery Thrombosis

open access: yesJournal of the Belgian Society of Radiology, 2023
In the patient who complained of dizziness, thrombus was observed in the right vertebral artery. Compression was detected in the nerve root due to compensatory hypertrophy in the left vertebral artery.
Ertugrul Cakir   +2 more
doaj   +1 more source

What went wrong? The flawed concept of cerebrospinal venous insufficiency [PDF]

open access: yes, 2013
In 2006, Zamboni reintroduced the concept that chronic impaired venous outflow of the central nervous system is associated with multiple sclerosis (MS), coining the term of chronic cerebrospinal venous insufficiency ('CCSVI'). The diagnosis of 'CCSVI' is
Al-Omari MH   +22 more
core   +2 more sources

Variant course of right vertebral artery - a case report

open access: yesNational Journal of Clinical Anatomy, 2014
The Vertebral artery is the first branch of subclavian artery. It is an important source of blood supply to the brain. During dissection of an adult male cadaver, a unilateral variation in the course of Vertebral artery was found.
D Nirmala, Anjali Gupta
doaj   +1 more source

Bilateral vertebral artery dissection extending to the left posterior cerebral artery: A case report

open access: yesRadiology Case Reports, 2023
Intracranial artery dissection accounts for a small percentage (1%-2%) of all ischemic strokes. Vertebral artery dissection sometimes extends to the basilar artery but very rarely to the posterior cerebral artery.
Masahiro Morishita, MD   +7 more
doaj   +1 more source

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