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The fetal variant of the circle of Willis and its influence on the cerebral collateral circulation. <i>Cerebrovasc Dis<\/i> 2006; 22: 217\u2013224.","DOI":"10.1159\/000094007"},{"key":"2","doi-asserted-by":"crossref","unstructured":"2) Arrambide-Garza FJ, Alvarez-Lozada LA, de Le\u00f3n-Guti\u00e9rrez H, et al. Fetal-type posterior cerebral artery and association of rupture in posterior communicating artery aneurysms: a systematic review and meta-analysis. <i>Clin Neurol Neurosurg<\/i> 2023; 231: 107815.","DOI":"10.1016\/j.clineuro.2023.107815"},{"key":"3","doi-asserted-by":"crossref","unstructured":"3) Le TTG, Ryu SW, Yoon JJ, et al. Assessing the impact of fetal-type posterior cerebral artery variations on cerebral hemodynamics. <i>Phys Fluids<\/i> 2024; 36: 101901.","DOI":"10.1063\/5.0224107"},{"key":"4","doi-asserted-by":"crossref","unstructured":"4) Zada G, Breault J, Liu CY, et al. Internal carotid artery aneurysms occurring at the origin of fetal variant posterior cerebral arteries: surgical and endovascular experience. <i>Neurosurgery<\/i> 2008; 63: ONS55\u2013ONS62; discussion, ONS61\u2013ONS62.","DOI":"10.1227\/01.NEU.0000320383.15473.39"},{"key":"5","doi-asserted-by":"crossref","unstructured":"5) Chen X, Li H, Wang MZ, et al. Clinical features and outcomes of PComA aneurysms originating from fetal posterior communicating arteries in a single institution. <i>Chin Neurosurg J<\/i> 2020; 6: 23.","DOI":"10.1186\/s41016-020-00200-6"},{"key":"6","doi-asserted-by":"crossref","unstructured":"6) Chen Y, Cai Y, Chen H, et al. Influencing factors for complication with aneurysm rupture of the fetal posterior communicating artery after clipping through the lateral supraorbital approach and prognosis. <i>Artery Res<\/i> 2021; 27: 186\u2013193.","DOI":"10.1007\/s44200-021-00007-5"},{"key":"7","doi-asserted-by":"crossref","unstructured":"7) Chen Z, Niu Y, Tang J, et al. Endovascular treatment of posterior communicating artery aneurysms in the presence of the fetal variant of posterior cerebral artery. <i>Interv Neuroradiol<\/i> 2015; 21: 456\u2013461.","DOI":"10.1177\/1591019915590532"},{"key":"8","doi-asserted-by":"crossref","unstructured":"8) Choi HH, Cho YD, Yoo DH, et al. Impact of fetal-type posterior cerebral artery on recanalization of posterior communicating artery aneurysms after coil embolization: matched-pair case-control study. <i>J Neurointerv Surg<\/i> 2020; 12: 783\u2013787.","DOI":"10.1136\/neurintsurg-2019-015531"},{"key":"9","doi-asserted-by":"crossref","unstructured":"9) Kim MJ, Chung J, Park KY, et al. Recurrence and risk factors of posterior communicating artery aneurysms after endovascular treatment. <i>Acta Neurochir (Wien)<\/i> 2021; 163: 2319\u20132326.","DOI":"10.1007\/s00701-021-04881-5"},{"key":"10","doi-asserted-by":"crossref","unstructured":"10) Fuga M, Tanaka T, Tachi R, et al. Efficacy and safety of fetal posterior cerebral artery stented coil embolization for fetal posterior cerebral aneurysms. <i>Interv Neuroradiol<\/i> 2025; 31: 833\u2013845.","DOI":"10.1177\/15910199231188556"},{"key":"11","doi-asserted-by":"crossref","unstructured":"11) Tanabe J, Nakahara I, Matsumoto S, et al. \u03bb stenting: a novel technique for posterior communicating artery aneurysms with fetal-type posterior communicating artery originating from the aneurysm dome. <i>Neuroradiology<\/i> 2022; 64: 151\u2013159.","DOI":"10.1007\/s00234-021-02775-y"},{"key":"12","doi-asserted-by":"crossref","unstructured":"12) Aguiar G, Caroff J, Mihalea C, et al. WEB device for treatment of posterior communicating artery aneurysms. <i>J Neurointerv Surg<\/i> 2022; 14: 362\u2013365.","DOI":"10.1136\/neurintsurg-2021-017405"},{"key":"13","doi-asserted-by":"crossref","unstructured":"13) Tanabe J, Nakahara I, Haraguchi K, et al. Woven Endobridge as a first-line strategy for posterior communicating artery aneurysms: enhanced applicability in fetal-type variants. <i>Neuroradiology<\/i> 2025; 67: 3419\u20133427.","DOI":"10.1007\/s00234-025-03816-6"},{"key":"14","doi-asserted-by":"crossref","unstructured":"14) Becske T, Kallmes DF, Saatci I, et al. Pipeline for Uncoilable or Failed Aneurysms: results from a multicenter clinical trial. <i>Radiology<\/i> 2013; 267: 858\u2013868.","DOI":"10.1148\/radiol.13120099"},{"key":"15","doi-asserted-by":"crossref","unstructured":"15) Vivanco-Suarez J, Rodriguez-Calienes A, Kan PT, et al. Flow diverter performance in aneurysms arising from the posterior communicating artery: a systematic review and meta-analysis. <i>Neurosurgery<\/i> 2023; 93: 764\u2013772.","DOI":"10.1227\/neu.0000000000002517"},{"key":"16","doi-asserted-by":"crossref","unstructured":"16) Rinaldo L, Brinjikji W, Cloft H, et al. Effect of fetal posterior circulation on efficacy of flow diversion for treatment of posterior communicating artery aneurysms: a multi-institutional study. <i>World Neurosurg<\/i> 2019; 127: e1232\u2013e1236.","DOI":"10.1016\/j.wneu.2019.04.112"},{"key":"17","doi-asserted-by":"crossref","unstructured":"17) K\u00fchn AL, Dabus G, Kan P, et al. Flow-diverter stents for endovascular management of non-fetal posterior communicating artery aneurysms-analysis on aneurysm occlusion, vessel patency, and patient outcome. <i>Interv Neuroradiol<\/i> 2018; 24: 363\u2013374.","DOI":"10.1177\/1591019918759735"},{"key":"18","doi-asserted-by":"crossref","unstructured":"18) Daou B, Valle-Giler EP, Chalouhi N, et al. Patency of the posterior communicating artery following treatment with the Pipeline Embolization Device. <i>J Neurosurg<\/i> 2017; 126: 564\u2013569.","DOI":"10.3171\/2016.2.JNS152544"},{"key":"19","doi-asserted-by":"crossref","unstructured":"19) Brinjikji W, Lanzino G, Cloft HJ, et al. Patency of the posterior communicating artery after flow diversion treatment of internal carotid artery aneurysms. <i>Clin Neurol Neurosurg<\/i> 2014; 120: 84\u201388.","DOI":"10.1016\/j.clineuro.2014.02.018"},{"key":"20","doi-asserted-by":"crossref","unstructured":"20) Dibas M, Vivanco-Suarez J, Galecio-Castillo M, et al. Flow diversion for intracranial aneurysms with incorporated branch: a subanalysis from the SEASE International Registry. <i>Stroke Vasc Interv Neurol<\/i> 2024; 4: e001448.","DOI":"10.1161\/SVIN.124.001448"},{"key":"21","doi-asserted-by":"crossref","unstructured":"21) Bender MT, Colby GP, Lin LM, et al. Predictors of cerebral aneurysm persistence and occlusion after flow diversion: a single-institution series of 445 cases with angiographic follow-up. <i>J Neurosurg<\/i> 2019; 130: 259\u2013267.","DOI":"10.3171\/2017.11.JNS171738"},{"key":"22","doi-asserted-by":"crossref","unstructured":"22) Maragkos GA, Ascanio LC, Salem MM, et al. Predictive factors of incomplete aneurysm occlusion after endovascular treatment with the Pipeline embolization device. <i>J Neurosurg<\/i> 2020; 132: 1598\u20131605.","DOI":"10.3171\/2019.1.JNS183226"},{"key":"23","doi-asserted-by":"crossref","unstructured":"23) Daou B, Starke RM, Chalouhi N, et al. Pipeline embolization device in the treatment of recurrent previously stented cerebral aneurysms. <i>AJNR Am J Neuroradiol<\/i> 2016; 37: 849\u2013855.","DOI":"10.3174\/ajnr.A4613"},{"key":"24","doi-asserted-by":"crossref","unstructured":"24) Wallace AN, Kayan Y, Austin MJ, et al. Pipeline embolization of posterior communicating artery aneurysms associated with a fetal origin posterior cerebral artery. <i>Clin Neurol Neurosurg<\/i> 2017; 160: 83\u201387.","DOI":"10.1016\/j.clineuro.2017.06.014"},{"key":"25","doi-asserted-by":"crossref","unstructured":"25) Roy AK, Howard BM, Haussen DC, et al. Reduced efficacy of the pipeline embolization device in the treatment of posterior communicating region aneurysms with fetal posterior cerebral artery configuration. <i>Neurosurgery<\/i> 2018; 82: 695\u2013700.","DOI":"10.1093\/neuros\/nyx293"},{"key":"26","doi-asserted-by":"crossref","unstructured":"26) Ten Brinck MFM, Rigante L, Shimanskaya VE, et al. Limitations of flow diverters in posterior communicating artery aneurysms. <i>Brain Sci<\/i> 2021; 11: 349.","DOI":"10.3390\/brainsci11030349"},{"key":"27","doi-asserted-by":"crossref","unstructured":"27) Kan P, Duckworth E, Puri A, et al. Treatment failure of fetal posterior communicating artery aneurysms with the pipeline embolization device. <i>J Neurointerv Surg<\/i> 2016; 8: 945\u2013948.","DOI":"10.1136\/neurintsurg-2015-011959"},{"key":"28","doi-asserted-by":"crossref","unstructured":"28) Baranoski JF, Merrill S, Rutledge C, et al. Flow-diversion for complex posterior communicating artery aneurysms associated with a fetal posterior circulation. <i>Stroke Vasc Interv Neurol<\/i> 2022; 2: e000134.","DOI":"10.1161\/SVIN.121.000134"},{"key":"29","doi-asserted-by":"crossref","unstructured":"29) Han K, Wadhwa A, Ramirez-Velandia F, et al. Occlusion of posterior communicating artery aneurysms with a \u2018fetal\u2019 type circulation treated with flow diversion. <i>Clin Neurol Neurosurg<\/i> 2026; 262: 109290.","DOI":"10.1016\/j.clineuro.2025.109290"},{"key":"30","doi-asserted-by":"crossref","unstructured":"30) Enriquez-Marulanda A, Ravindran K, Salem MM, et al. Evaluation of radiological features of the posterior communicating artery and their impact on efficacy of saccular aneurysm treatment with the pipeline embolization device: a case series study. <i>World Neurosurg<\/i> 2019; 125: e998\u2013e1007.","DOI":"10.1016\/j.wneu.2019.01.228"},{"key":"31","doi-asserted-by":"crossref","unstructured":"31) Xue X, Liu H, Sun M, et al. Association between fetal posterior communicating artery anatomy and pipeline embolization device treatment efficacy: a propensity score-weighted cohort study. <i>Clin Neurol Neurosurg<\/i> 2026; 260: 109255.","DOI":"10.1016\/j.clineuro.2025.109255"},{"key":"32","doi-asserted-by":"crossref","unstructured":"32) Link TW, Carnevale JA, Goldberg JL, et al. Multiple pipeline embolization devices improves aneurysm occlusion without increasing morbidity: a single center experience of 140 cases. <i>J Clin Neurosci<\/i> 2021; 86: 129\u2013135.","DOI":"10.1016\/j.jocn.2021.01.016"},{"key":"33","doi-asserted-by":"crossref","unstructured":"33) Sakamoto M, Uno T, Yoshioka H, et al. Overlapping flow diverter with coiling for fetal-type posterior communicating artery aneurysms with triple antithrombotic therapy: a case series. <i>NMC Case Rep J<\/i> 2026; 13: 13\u201320.","DOI":"10.2176\/jns-nmc.2025-0303"},{"key":"34","doi-asserted-by":"crossref","unstructured":"34) Tsang ACO, Fung AMY, Tsang FCP, et al. Failure of flow diverter treatment of intracranial aneurysms related to the fetal-type posterior communicating artery. <i>Neurointervention<\/i> 2015; 10: 60\u201366.","DOI":"10.5469\/neuroint.2015.10.2.60"},{"key":"35","doi-asserted-by":"crossref","unstructured":"35) Uchiyama Y, Fujimura S, Takao H, et al. Hemodynamic investigation of the effectiveness of a two overlapping flow diverter configuration for cerebral aneurysm treatment. <i>Bioengineering (Basel)<\/i> 2021; 8: 143.","DOI":"10.3390\/bioengineering8100143"},{"key":"36","doi-asserted-by":"crossref","unstructured":"36) Golshani K, Ferrell A, Zomorodi A, et al. A review of the management of posterior communicating artery aneurysms in the modern era. <i>Surg Neurol Int<\/i> 2010; 1: 88.","DOI":"10.4103\/2152-7806.74147"},{"key":"37","doi-asserted-by":"crossref","unstructured":"37) Chung J, Cheong JH, Kim JM, et al. Is fetal-type posterior cerebral artery a risk factor for recurrence in coiled internal carotid artery-incorporating posterior communicating artery aneurysms? 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Quantitative digital subtraction angiography analysis and predictive factors for incomplete occlusion in posterior communicating artery aneurysms after endovascular treatment. <i>Neuroradiology<\/i> 2025; 67: 3397\u20133407.","DOI":"10.1007\/s00234-025-03780-1"}],"container-title":["Journal of Neuroendovascular Therapy"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.jstage.jst.go.jp\/article\/jnet\/20\/1\/20_ra.2026-0072\/_pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,7,4]],"date-time":"2026-07-04T04:17:45Z","timestamp":1783138665000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.jstage.jst.go.jp\/article\/jnet\/20\/1\/20_ra.2026-0072\/_article"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026]]},"references-count":38,"journal-issue":{"issue":"1","published-print":{"date-parts":[[2026]]}},"URL":"https:\/\/doi.org\/10.5797\/jnet.ra.2026-0072","relation":{},"ISSN":["1882-4072","2186-2494"],"issn-type":[{"value":"1882-4072","type":"print"},{"value":"2186-2494","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026]]},"article-number":"ra.2026-0072"}}