ArticleJNMA; journal of the Nepal Medical Association2020
Anatomical Variations in Circle of Willis in Patients Undergoing CT Cerebral Angiography in a Tertiary Hospital in Nepal: A Descriptive Cross-sectional Study.
Article in JNMA; journal of the Nepal Medical Association, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed, 5 citations in OpenAlex.
- A Historic Review of the Three-Century Journey of the Circulus Arteriosus Cerebri: Then and Now.Cureus · 2025Review
- Patterns of Circle of Willis Variants among Patients Undergoing 3 Tesla Magnetic Resonance Angiography at a Tertiary Care Hospital: An Observational Study.JNMA; journal of the Nepal Medical Association · 2025Observational
- Association of circle of willis variants with stroke and aneurysm: insights from a tertiary hospital in Ethiopia.BMC neurology · 2025Article
- Anatomical study of circle of Willis on fresh autopsied brains. A study of a Romanian population.Romanian journal of morphology and embryology = Revue roumaine de morphologie et embryologieArticle
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6 authors at 2 institutions in 1 country.
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Abstract
introductionVariation in Circle of Willis is a commonly encountered entity in patients undergoing computed tomography angiography, identification of which is crucial in the management of patients with vascular pathologies. The aim of the study was to find out the anatomical variations in the Circle of Willis in patients undergoing Computed Tomography cerebral angiography in a tertiary hospital in Nepal.
methodsThis is a descriptive cross-sectional study involving 95 patients using convenient sampling techniques who were sent to the Department of Radiology and Imaging, Tribhuvan University Teaching hospital, for further evaluation of suspected vascular pathologies in the brain from April 2017 to September 2017. Ethical approval was taken from the Institutional Review Committee of the Institute of Medicine with reference number 326 (6-11-E). CT angiographic images of these patients were evaluated for the presence of variations in Circle of Willis, aneurysms, and other vascular pathologies. Data were analyzed using SPSS.
resultsAmong 95 subjects included in the study, the anatomical variations in the arteries of Circle of Willis was seen in 52 (54.7%) patients, hypoplastic posterior communicating artery being the most common variation 33 (34.7%). The aneurysm was seen in 22 (23.2%) of cases.
conclusionsCT Angiography is a commonly performed imaging modality for suspected cases of cerebral aneurysms and various other vascular pathologies. Multidetector computed tomography can effectively detect variations in arteries of Circle of Willis, recognition of which is crucial in operative management of vascular pathologies.
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