{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,4]],"date-time":"2026-05-04T06:43:46Z","timestamp":1777877026345,"version":"3.51.4"},"reference-count":44,"publisher":"SAGE Publications","issue":"6","license":[{"start":{"date-parts":[[2025,2,7]],"date-time":"2025-02-07T00:00:00Z","timestamp":1738886400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Neuroradiol J"],"published-print":{"date-parts":[[2025,12]]},"abstract":"<jats:p>\n                    The purpose of this study was to identify the anatomical variants (AVs) in the intracranial arterial circulation of patients who underwent neuro-interventional procedures (NIPs) and to describe their relationship with intracranial aneurysms (IA). We performed a cross-sectional analysis of angiographic images from patients who underwent NIP at the Interventional Neuroradiology Department of the National Institute of Neurology and Neurosurgery in M\u00e9xico between July 1, 2020, and January 1, 2022. After reviewing images from 150 NIPs, we found 144 AVs., yielding a prevalence of 81%. Of these, 49 AVs (34%) were located in the anterior circulation (AC) and 95 (66%) in the posterior circulation (PC); 23 NIPs (16%) showed AVs in both the AC and PC. The most frequent AVs were the fetal pattern of the posterior cerebral artery (19%) and hypoplasia of the A1 segment (12%). AVs were significantly more common in patients with neurovascular disorders than those without (80% vs 49%,\n                    <jats:italic toggle=\"yes\">p<\/jats:italic>\n                    = .003) and in patients with IA compared to those without (68% vs 47%,\n                    <jats:italic toggle=\"yes\">p<\/jats:italic>\n                    = .048). In the studied population, AVs were predominantly located in the PC and are significantly more frequent in patients with neurovascular disorders, particularly those with IA.\n                  <\/jats:p>","DOI":"10.1177\/19714009251313516","type":"journal-article","created":{"date-parts":[[2025,2,7]],"date-time":"2025-02-07T04:35:17Z","timestamp":1738902917000},"page":"720-727","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":3,"title":["Anatomical variations of the intracranial arteries and their association with intracranial aneurysms: Insights from digital subtraction angiographies"],"prefix":"10.1177","volume":"38","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-5748-485X","authenticated-orcid":false,"given":"Yolanda","family":"Aburto-Murrieta","sequence":"first","affiliation":[{"name":"Instituto Nacional de Neurolog\u00eda y Neurocirug\u00eda"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Juan Manuel","family":"Marquez-Romero","sequence":"additional","affiliation":[{"name":"HGZ # 2. Instituto Mexicano del Seguro Social"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Pablo","family":"Mart\u00ednez-Arellano","sequence":"additional","affiliation":[{"name":"Instituto Mexicano del Seguro Social"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0350-3477","authenticated-orcid":false,"given":"Fabiola Eunice","family":"Serrano-Arias","sequence":"additional","affiliation":[{"name":"Instituto Nacional de Neurolog\u00eda y Neurocirug\u00eda"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5702-4199","authenticated-orcid":false,"given":"H\u00e9ctor Alfredo","family":"Montenegro-Rosales","sequence":"additional","affiliation":[{"name":"Hospital M\u00e9dica Sur"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5980-0166","authenticated-orcid":false,"given":"Diego","family":"L\u00f3pez-Mena","sequence":"additional","affiliation":[{"name":"Instituto Nacional de Neurolog\u00eda y Neurocirug\u00eda"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2025,2,7]]},"reference":[{"key":"e_1_3_4_2_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.mric.2011.05.015"},{"key":"e_1_3_4_3_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00330-018-5577-x"},{"key":"e_1_3_4_4_2","doi-asserted-by":"publisher","DOI":"10.1038\/s42254-021-00326-1"},{"key":"e_1_3_4_5_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jocn.2020.08.019"},{"key":"e_1_3_4_6_2","doi-asserted-by":"publisher","DOI":"10.5853\/jos.2015.17.2.144"},{"key":"e_1_3_4_7_2","doi-asserted-by":"publisher","DOI":"10.1053\/j.sult.2011.02.002"},{"key":"e_1_3_4_8_2","doi-asserted-by":"publisher","DOI":"10.1177\/02841851231171687"},{"key":"e_1_3_4_9_2","doi-asserted-by":"publisher","DOI":"10.1007\/s13760-021-01805-z"},{"key":"e_1_3_4_10_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.clineuro.2020.106399"},{"key":"e_1_3_4_11_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00415-021-10454-4"},{"key":"e_1_3_4_12_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ejrad.2005.05.005"},{"key":"e_1_3_4_13_2","doi-asserted-by":"publisher","DOI":"10.3389\/fneur.2022.1098950"},{"key":"e_1_3_4_14_2","doi-asserted-by":"crossref","unstructured":"Uyanik SA Uyanik HU Oguslu U et al. Intracranial arterial variations and their relation with cerebral aneurysms: analysis of 640 patients. 2020.","DOI":"10.5455\/annalsmedres.2020.07.795"},{"key":"e_1_3_4_15_2","doi-asserted-by":"publisher","DOI":"10.5505\/tbdhd.2018.54154"},{"key":"e_1_3_4_16_2","doi-asserted-by":"publisher","DOI":"10.1161\/01.str.15.5.846"},{"key":"e_1_3_4_17_2","doi-asserted-by":"publisher","DOI":"10.32457\/ijmss.v9i1.1806"},{"key":"e_1_3_4_18_2","volume-title":"Surgical neuroangiography: vol. 2: clinical and endovascular treatment aspects in adults","author":"Berenstein A","year":"2012","unstructured":"Berenstein A, Lasjaunias P. Surgical neuroangiography: vol. 2: clinical and endovascular treatment aspects in adults. Berlin, Germany: Springer Science & Business Media, 2012."},{"key":"e_1_3_4_19_2","doi-asserted-by":"publisher","DOI":"10.1159\/000094007"},{"key":"e_1_3_4_20_2","doi-asserted-by":"publisher","DOI":"10.47162\/RJME.63.2.10"},{"key":"e_1_3_4_21_2","doi-asserted-by":"publisher","DOI":"10.5455\/msm.2018.30.189-192"},{"key":"e_1_3_4_22_2","doi-asserted-by":"publisher","DOI":"10.4103\/2152-7806.112185"},{"key":"e_1_3_4_23_2","doi-asserted-by":"publisher","DOI":"10.7860\/JCDR\/2013\/6580.3563"},{"key":"e_1_3_4_24_2","doi-asserted-by":"publisher","DOI":"10.1148\/radiology.195.2.7724765"},{"key":"e_1_3_4_25_2","doi-asserted-by":"publisher","DOI":"10.3174\/ajnr.A3123"},{"key":"e_1_3_4_26_2","doi-asserted-by":"publisher","DOI":"10.1177\/159101990801400208"},{"key":"e_1_3_4_27_2","doi-asserted-by":"publisher","DOI":"10.1017\/thg.2018.50"},{"key":"e_1_3_4_28_2","doi-asserted-by":"publisher","DOI":"10.1002\/ajhb.21123"},{"key":"e_1_3_4_29_2","doi-asserted-by":"publisher","DOI":"10.1111\/joa.13019"},{"issue":"2","key":"e_1_3_4_30_2","first-page":"103","article-title":"[Frequency of vascular variations and anomalies accompanying intracranial aneurysms]","volume":"10","author":"Karazincir S","year":"2004","unstructured":"Karazincir S, Ada E, Sarsilmaz A, et al. [Frequency of vascular variations and anomalies accompanying intracranial aneurysms]. Tani Girisim Radyol 2004; 10(2): 103\u2013109.","journal-title":"Tani Girisim Radyol"},{"key":"e_1_3_4_31_2","doi-asserted-by":"publisher","DOI":"10.12659\/MSM.890265"},{"key":"e_1_3_4_32_2","article-title":"E-142 Variations, anomalies and collateralization of intracranial vascular anatomy and association with intracranial aneurysms","volume":"13","author":"Ahmad S","year":"2021","unstructured":"Ahmad S. E-142 Variations, anomalies and collateralization of intracranial vascular anatomy and association with intracranial aneurysms. British Medical Journal Publishing Group. 2021; 13.","journal-title":"British Medical Journal Publishing Group"},{"key":"e_1_3_4_33_2","doi-asserted-by":"publisher","DOI":"10.4067\/S0717-95022017000300049"},{"key":"e_1_3_4_34_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.wneu.2021.06.151"},{"key":"e_1_3_4_35_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jns.2023.120740"},{"key":"e_1_3_4_36_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.wneu.2022.05.127"},{"key":"e_1_3_4_37_2","doi-asserted-by":"publisher","DOI":"10.5137\/1019-5149.JTN.17839-16.1"},{"key":"e_1_3_4_38_2","doi-asserted-by":"publisher","DOI":"10.1227\/neu.0000000000002695"},{"key":"e_1_3_4_39_2","doi-asserted-by":"publisher","DOI":"10.3171\/jns.1996.84.1.0043"},{"key":"e_1_3_4_40_2","doi-asserted-by":"publisher","DOI":"10.1212\/wnl.51.2.405"},{"key":"e_1_3_4_41_2","doi-asserted-by":"publisher","DOI":"10.1227\/NEU.0000000000001083"},{"key":"e_1_3_4_42_2","doi-asserted-by":"publisher","DOI":"10.3174\/ajnr.A2461"},{"key":"e_1_3_4_43_2","doi-asserted-by":"publisher","DOI":"10.1186\/s12883-014-0253-5"},{"key":"e_1_3_4_44_2","doi-asserted-by":"publisher","DOI":"10.1055\/s-0038-1650533"},{"key":"e_1_3_4_45_2","doi-asserted-by":"publisher","DOI":"10.1007\/s10439-013-0800-z"}],"container-title":["The Neuroradiology Journal"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/19714009251313516","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/full-xml\/10.1177\/19714009251313516","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/19714009251313516","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,4,30]],"date-time":"2026-04-30T22:39:17Z","timestamp":1777588757000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.sagepub.com\/doi\/10.1177\/19714009251313516"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,2,7]]},"references-count":44,"journal-issue":{"issue":"6","published-print":{"date-parts":[[2025,12]]}},"alternative-id":["10.1177\/19714009251313516"],"URL":"https:\/\/doi.org\/10.1177\/19714009251313516","relation":{},"ISSN":["1971-4009","2385-1996"],"issn-type":[{"value":"1971-4009","type":"print"},{"value":"2385-1996","type":"electronic"}],"subject":[],"published":{"date-parts":[[2025,2,7]]}}}