Document Detail

Vertebral artery variations at the C1-2 level diagnosed by magnetic resonance angiography.
MedLine Citation:
PMID:  21340577     Owner:  NLM     Status:  Publisher    
INTRODUCTION: The craniovertebral junction is clinically important. The vertebral artery (VA) in its several variations runs within this area. We report the prevalence of these VA variations on magnetic resonance angiography (MRA). METHODS: We retrospectively reviewed MRA images, obtained using two 1.5-T imagers, of 2,739 patients, and paid special attention to the course and branching of the VA at the level of the C1-2 vertebral bodies. RESULTS: There were three types of VA variation at the C1-2 level: (1) persistent first intersegmental artery (FIA), (2) VA fenestration, and (3) posterior inferior cerebellar artery (PICA) originating from the C1/2 level. The overall prevalence of these three variations was 5.0%. There was no laterality in frequency, but we found female predominance (P < 0.05). We most frequently observed the persistent FIA (3.2%), which was sometimes bilateral. We found VA fenestration (0.9%) and PICA of C1/2 origin (1.1%) with almost equal frequency. Two PICAs of C1/2 origin had no normal VA branch. CONCLUSIONS: We frequently observed VA variations at the C1-2 level and with female predominance. The persistent FIA was most prevalent and sometimes seen bilaterally. Preoperative identification of these variations in VA is necessary to avoid complications during surgery at the craniovertebral junction.
Akira Uchino; Naoko Saito; Takeyuki Watadani; Yoshitaka Okada; Eito Kozawa; Naoko Nishi; Waka Mizukoshi; Kaiji Inoue; Reiko Nakajima; Masahiro Takahashi
Related Documents :
2316457 - Balloon dilatation of the stenosed aortic valve: how does it work? why does it fail?
2590937 - Percutaneous transluminal coronary angioplasty using a combined "balloon-on-a-wire" sys...
6968547 - Transaortic cannulation for balloon pumping in a "crowded aorta".
2964907 - Balloon inflation following injection of contrast material through the distal lumen of ...
12198037 - A subclavian artery injury, secondary to internal jugular vein cannulation, is a predic...
20889307 - Single-stage repair of aortic coarctation with concomitant bicuspid aortic valve and as...
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-2-22
Journal Detail:
Title:  Neuroradiology     Volume:  -     ISSN:  1432-1920     ISO Abbreviation:  -     Publication Date:  2011 Feb 
Date Detail:
Created Date:  2011-2-22     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  1302751     Medline TA:  Neuroradiology     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Department of Diagnostic Radiology, Saitama Medical University International Medical Center, 1397-1 Yamane, Hidaka, Saitama, 350-1298, Japan,
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  The entire dural sinus tree is compressed in patients with idiopathic intracranial hypertension: a l...
Next Document:  DTI studies in patients with Alzheimer's disease, mild cognitive impairment, or normal cognition wit...