ArticleTzu chi medical journal
Magnetic resonance angiography determined variations in the circle of Willis: Analysis of a large series from a single center.
Article in Tzu chi medical journal. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.
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Who cites it
11 citing papers in PubMed, 1 synthesis or guideline pooled it.
- The anterior communicating artery variants: a meta-analysis with a proposed classification system.Surgical and radiologic anatomy : SRA · 2024Pooled it
- Anatomical study of variations in the configurations of the circle of Willis in relation to age, sex, and diameters of the components.Anatomy & cell biology · 2024Article
- Evaluation of the Frequency of Migraine and CVA Patients Based on Circle of Willis Morphological Variations in MRA Images.Advanced biomedical research · 2024Article
- Magnetic resonance angiography in assessment of anomalies of anterior cerebral artery in adults.Anatomy & cell biology · 2023Article
- Evaluation of Circle of Willis variants using magnetic resonance angiography.Scientific reports · 2022Article
- Reclassifications of ischemic stroke patterns due to variants of the Circle of Willis.International journal of stroke : official journal of the International Stroke Society · 2022Article
- An MRI study of typical anatomical variants of the anterior communicating artery complex.Surgical and radiologic anatomy : SRA · 2021Article
- Usefulness of Computed Tomographic Perfusion Imaging for Appropriate Diagnosis of Acute Cerebral Vessel Occlusion in Case of Anatomic Variations of the Circle of Willis.Neurointervention · 2021Article
- Morphologic variants of the Cerebral Arterial Circle on computed tomographic angiography (CTA): a large retrospective study.Surgical and radiologic anatomy : SRA · 2021Article
- Correlation of internal carotid artery diameter and carotid flow with asymmetry of the circle of Willis.BMC neurology · 2020Article
- Proportion of Variant Anatomy of the Circle of Willis and Association with Vascular Anomalies on Cerebral CT Angiography.Radiology research and practice · 2019Article
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2 authors.
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Abstract
objectiveThe purpose of this study is to evaluate and describe the prevalence and patterns of arterial variants in the circle of Willis (CW) seen in noncontrast three-dimensional time-of-flight magnetic resonance angiography in a series of patients with cerebral vascular accidents (CVAs). MATERIALS AND
methodsA descriptive study was undertaken in 200 patients who presented for screening for CVA in the Department of Radiodiagnosis and Imaging, St. John's Medical College Hospital, Bengaluru, from September 2014 to September 2016.
resultsThe most common types of CW in a single subject were anterior variant Type A and posterior variant Type E. Type A in the anterior circulation is the normal adult pattern. There is a single anterior communicating artery. The internal carotid artery bifurcates into the precommunicating segment of the anterior cerebral artery and middle cerebral artery. Type E in the posterior circulation is hypoplasia or absence of both posterior communicating arteries and isolation of the anterior and posterior parts of the circle at this level. Overall, CW variants were slightly more common in women than in men.
conclusionOur findings show that the configuration of the CW may vary greatly in the general population. The wide range in the morphology of CW warrants further research on various races and larger populations to confirm the influence of genetic, regional, environmental, and hemodynamic factors or their combination.
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