{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,30]],"date-time":"2026-04-30T00:32:57Z","timestamp":1777509177851,"version":"3.51.4"},"reference-count":18,"publisher":"SAGE Publications","issue":"8","license":[{"start":{"date-parts":[[2023,5,4]],"date-time":"2023-05-04T00:00:00Z","timestamp":1683158400000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Acta Radiol"],"published-print":{"date-parts":[[2023,8]]},"abstract":"<jats:p>The cerebral arterial system shows a wide spectrum of variations. Minor degrees of anatomic differences can be seen in almost all patients. Recognition of these anatomic variants is essential for the following: evaluating collateral circulation; some anatomic variants may mimic pathology; increased risk for aneurysm formation with some variants (e.g. fenestration, persistent trigeminal artery); dealing with pathologies that can arise with these variations; and for preoperative planning. The anterior and posterior groups of intracranial circulation show numerous anastomoses that play a major role in maintaining adequate blood supply to the cerebral parenchyma. This review focuses on the imaging features of these variants as seen on computed tomography and magnetic resonance imaging with relevant digital subtraction angiography imaging. We also present some case illustrations where understanding of these variants contributed to providing appropriate management.<\/jats:p>","DOI":"10.1177\/02841851231171687","type":"journal-article","created":{"date-parts":[[2023,5,5]],"date-time":"2023-05-05T00:50:46Z","timestamp":1683247846000},"page":"2455-2469","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":1,"title":["Interventions and imaging in patients with anatomic variations of cerebral circulation: a pictorial review"],"prefix":"10.1177","volume":"64","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5327-2398","authenticated-orcid":false,"given":"Pratik","family":"Shah","sequence":"first","affiliation":[{"name":"Department of Neuro-interventional Radiology, Kokilaben Dhirubhai Ambani Hospital and Medical Research Institute, Mumbai, India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Manish","family":"Shrivastava","sequence":"additional","affiliation":[{"name":"Department of Neuro-interventional Radiology, Kokilaben Dhirubhai Ambani Hospital and Medical Research Institute, Mumbai, India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hrishikesh","family":"Kale","sequence":"additional","affiliation":[{"name":"Department of Radiology, Kokilaben Dhirubhai Ambani Hospital and Medical Research Institute, Mumbai, India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7976-2782","authenticated-orcid":false,"given":"Krishna","family":"Mundada","sequence":"additional","affiliation":[{"name":"Department of Radiology, Kokilaben Dhirubhai Ambani Hospital and Medical Research Institute, Mumbai, India"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2023,5,4]]},"reference":[{"key":"bibr1-02841851231171687","doi-asserted-by":"publisher","DOI":"10.1007\/978-3-319-68536-6_20"},{"key":"bibr2-02841851231171687","doi-asserted-by":"publisher","DOI":"10.1007\/s11604-019-00847-x"},{"key":"bibr3-02841851231171687","doi-asserted-by":"publisher","DOI":"10.2176\/nmc.ra.2017-0050"},{"key":"bibr4-02841851231171687","doi-asserted-by":"publisher","DOI":"10.5853\/jos.2015.17.2.144"},{"key":"bibr5-02841851231171687","first-page":"1953","volume":"22","author":"Given CA","year":"2001","journal-title":"AJNR Am J Neuroradiol"},{"key":"bibr6-02841851231171687","doi-asserted-by":"publisher","DOI":"10.1097\/MD.0000000000013986"},{"key":"bibr7-02841851231171687","doi-asserted-by":"publisher","DOI":"10.5144\/0256-4947.2013.194"},{"key":"bibr8-02841851231171687","first-page":"16","volume":"10","author":"Tahir RA","year":"2019","journal-title":"J Vasc Interv Neurol"},{"key":"bibr9-02841851231171687","doi-asserted-by":"publisher","DOI":"10.5603\/FM.a2017.0112"},{"key":"bibr10-02841851231171687","doi-asserted-by":"publisher","DOI":"10.3174\/ajnr.A1858"},{"key":"bibr11-02841851231171687","first-page":"976","volume":"28","author":"Satti SR","year":"2007","journal-title":"AJNR Am J Neuroradiol"},{"key":"bibr12-02841851231171687","doi-asserted-by":"publisher","DOI":"10.1007\/BF00327480"},{"key":"bibr13-02841851231171687","doi-asserted-by":"publisher","DOI":"10.1007\/s00234-010-0669-6"},{"key":"bibr14-02841851231171687","doi-asserted-by":"publisher","DOI":"10.1007\/s00234-012-1074-0"},{"key":"bibr15-02841851231171687","doi-asserted-by":"publisher","DOI":"10.1007\/s00276-018-1970-z"},{"key":"bibr16-02841851231171687","doi-asserted-by":"publisher","DOI":"10.1177\/159101990801400212"},{"key":"bibr17-02841851231171687","first-page":"440","volume":"137","author":"Bamel SS","year":"1975","journal-title":"Anat Anz"},{"key":"bibr18-02841851231171687","doi-asserted-by":"publisher","DOI":"10.1177\/1591019918772054"}],"container-title":["Acta Radiologica"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/02841851231171687","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/journals.sagepub.com\/doi\/full-xml\/10.1177\/02841851231171687","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/02841851231171687","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,4,28]],"date-time":"2026-04-28T15:33:27Z","timestamp":1777390407000},"score":1,"resource":{"primary":{"URL":"http:\/\/journals.sagepub.com\/doi\/10.1177\/02841851231171687"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2023,5,4]]},"references-count":18,"journal-issue":{"issue":"8","published-print":{"date-parts":[[2023,8]]}},"alternative-id":["10.1177\/02841851231171687"],"URL":"https:\/\/doi.org\/10.1177\/02841851231171687","relation":{},"ISSN":["0284-1851","1600-0455"],"issn-type":[{"value":"0284-1851","type":"print"},{"value":"1600-0455","type":"electronic"}],"subject":[],"published":{"date-parts":[[2023,5,4]]}}}