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A Volumetric Method for Quantification of Cerebral Vasospasm in a Murine Model of Subarachnoid Hemorrhage
Published on: July 28, 2018
Variations in the intracranial vertebrobasilar system.
Ahmet Songur1, Yucel Gonul, Oguz Aslan Ozen
1Department of Anatomy, Kocatepe University Medical School, Afyonkarahisar, Turkey. asongur55@yahoo.com
Surgical and Radiologic Anatomy : SRA
|February 7, 2008
Summary
This study analyzed variations in the Turkish vertebrobasilar system (VBS). High rates of hypoplastic arteries and unique branching patterns were observed, offering crucial anatomical insights.
Area of Science:
- Anatomy
- Vascular Anatomy
- Neuroanatomy
Background:
- The vertebrobasilar system (VBS) is crucial for brainstem and cerebellum blood supply.
- Understanding anatomical variations is vital for neurovascular procedures and interpreting pathologies.
Purpose of the Study:
- To document variations in the vertebrobasilar system (VBS) within the Turkish population.
- To compare observed VBS variations with existing literature.
Main Methods:
- Analysis of 109 forensic autopsy VBS samples and one anatomical cadaver.
- Measurement of vertebral artery (VA) and basilar artery (BA) widths.
- Determination of arterial dominancy, hypoplasia, variation types, and locations.
Main Results:
- Hypoplastic vertebral arteries (VA) were noted in 20.2% (right), 14.4% (left), and 4.8% (bilateral).
- Basilar artery (BA) variations included duplications (proximal 0.9%, distal 1.8%).
- Anterior spinal artery (ASA) variations showed single trunk origin (12.5%), origin from VA anastomosis (6.3%), and duplication (15.6%). Superior cerebellar artery variations included early bifurcation, fenestration, duplication, and common trunk origins.
Conclusions:
- Significant VBS variations are prevalent even in small sample sizes.
- These anatomical variations are clinically relevant, potentially increasing risks of aneurism and thrombus.
- The findings contribute to the anatomical and clinical understanding of the VBS in the Turkish population.
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