{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,4]],"date-time":"2026-04-04T17:23:10Z","timestamp":1775323390482,"version":"3.50.1"},"reference-count":46,"publisher":"Journal of Neurosurgery Publishing Group (JNSPG)","issue":"2","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2001,8]]},"abstract":"<jats:p content-type=\"fine-print\"><jats:italic>Object.<\/jats:italic> The purpose of this study was to compare computerized tomography (CT) angiography and digital subtraction (DS) angiography studies in patients with subarachnoid hemorrhage (SAH) to assess their vascular anatomy relevant to cerebral aneurysm surgery.<\/jats:p>\n<jats:p content-type=\"fine-print\"><jats:italic>Methods.<\/jats:italic> From a prospective series of 100 patients with SAH, the authors selected 73 patients whose CT angiography studies were of adequate quality and in whom DS angiography of both carotid arteries had been performed. Eleven patients with no DS angiographic studies of the vertebrobasilar artery were only evaluated for the anterior half of the circle of Willis. Anterior communicating arteries (ACoAs), both precommunicating anterior cerebral arteries (A<jats:sub>1<\/jats:sub> segments), both posterior communicating arteries (PCoAs), and both precommunicating posterior cerebral arteries (P<jats:sub>1<\/jats:sub> segments) were assessed on CT angiography and DS angiography by two independent observers.<\/jats:p>\n<jats:p content-type=\"fine-print\"><jats:italic>Conclusions.<\/jats:italic> Computerized tomography angiography compares well with DS angiography for visualizing normal-sized arteries, and is superior for visualizing ACoAs and hypoplastic A<jats:sub>1<\/jats:sub> and P<jats:sub>1<\/jats:sub> segments. Important preoperative aspects such as dominant A<jats:sub>1<\/jats:sub> segments and PCoAs are equally well seen using either modality. Neither method enabled the authors to visualize more than 50% of PCoAs. Use of CT angiography can provide the required preoperative anatomical information for aneurysm surgery in most patients with SAH.<\/jats:p>","DOI":"10.3171\/jns.2001.95.2.0206","type":"journal-article","created":{"date-parts":[[2009,5,13]],"date-time":"2009-05-13T17:35:08Z","timestamp":1242236108000},"page":"206-212","source":"Crossref","is-referenced-by-count":45,"title":["Surgical anatomy of the cerebral arteries in patients with subarachnoid hemorrhage: comparison of computerized tomography angiography and digital subtraction angiography"],"prefix":"10.3171","volume":"95","author":[{"given":"Birgitta K.","family":"Velthuis","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Maarten S.","family":"van Leeuwen","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Theodoor D.","family":"Witkamp","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lino M. P.","family":"Ramos","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jan Willem Berkelbach","family":"van der Sprenkel","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Gabri\u00ebl J. E.","family":"Rinkel","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1754","reference":[{"key":"b1","series-title":"AJNR","first-page":"1571","article-title":"Evaluation of the circle of Willis with three-dimensional CT angiography in patients with suspected intracranial aneurysms.","volume":"16","author":"Alberico","year":"1995"},{"key":"b2","series-title":"Arch Neurol","doi-asserted-by":"publisher","first-page":"398","DOI":"10.1001\/archneur.1963.00460040068006","article-title":"The circle of Willis in cerebral vascular disorders. The anatomical structure.","volume":"8","author":"Alpers","year":"1963"},{"key":"b3","series-title":"Arch Neurol Psychiatry","doi-asserted-by":"publisher","first-page":"409","DOI":"10.1001\/archneurpsyc.1959.02340160007002","article-title":"Anatomical studies of the circle of Willis in normal brain.","volume":"81","author":"Alpers","year":"1959"},{"key":"b4","series-title":"Neurosurgery","first-page":"522","article-title":"Experience with computed tomographic angiography for the detection of intracranial aneurysms in the setting of acute subarachnoid hemorrhage.","volume":"41","author":"Anderson","year":"1997"},{"key":"b5","series-title":"Minim Invas Neurosurg","doi-asserted-by":"publisher","first-page":"17","DOI":"10.1055\/s-2008-1053407","article-title":"Vascular variations associated with anterior communicating artery aneurysms-an intraoperative study.","volume":"40","author":"Aydin","year":"1997"},{"key":"b6","series-title":"Clin Radiol","doi-asserted-by":"publisher","first-page":"429","DOI":"10.1016\/S0009-9260(97)80003-7","article-title":"Pictorial review: magnetic resonance angiography of arterial variants at the circle of Willis.","volume":"52","author":"Barboriak","year":"1997"},{"key":"b7","series-title":"J Neurosurg","doi-asserted-by":"publisher","first-page":"572","DOI":"10.3171\/jns.1984.60.3.0572","article-title":"Anomalies of the posterior communicating artery and their potential clinical significance.","volume":"60","author":"Bisaria","year":"1984"},{"key":"b8","series-title":"Radiology","doi-asserted-by":"publisher","first-page":"805","DOI":"10.1148\/radiology.179.3.2027996","article-title":"Cerebral MR angiography with multiple overlapping thin slab acquisition. Part 1: quantitative analysis of vessel visibility.","volume":"179","author":"Blatter","year":"1991"},{"key":"b9","series-title":"J Neurosurg","doi-asserted-by":"publisher","first-page":"40","DOI":"10.3171\/jns.1965.22.1.0040","article-title":"The unilateral anterior cerebral circulation. Its importance in the management of aneurysms of the anterior communicating artery.","volume":"22","author":"Dukes","year":"1965"},{"key":"b10","series-title":"Neurochirurgie","first-page":"287","article-title":"Configuration anatomique du polygone de Willis de l'adulte, \u00e9tudi\u00e9 par les techniques d'injection. A propos de 100 cerveaux.","volume":"31","author":"el Khamlichi","year":"1985"},{"key":"b11","series-title":"Zh Vopr Neirokhir Im N N Burdenko","first-page":"5","article-title":"Rentgenoana tomicheskoe stroenie perednykh otdelov arterial \u02b9nogo (villizieva) kruga golovnogo mozga pri anevrizmakh pered\u011bi mozgovo\u012d-peredne\u012d soedinitel \u02b9noi arteri\u012d.","volume":"3","author":"Evzikov","year":"1995"},{"key":"b12","series-title":"Surg Neurol","doi-asserted-by":"publisher","first-page":"129","DOI":"10.1016\/0090-3019(86)90365-4","article-title":"Microanatomy of the anterior cerebral artery.","volume":"26","author":"Gomes","year":"1986"},{"key":"b13","series-title":"Surg Neurol","first-page":"41","article-title":"Experimentally induced cerebral aneurysms in rats. Part V. Relation of hemodynamics in the circle of Willis to formation of aneurysms.","volume":"13","author":"Hashimoto","year":"1980"},{"key":"b14","series-title":"Radiology","doi-asserted-by":"publisher","first-page":"445","DOI":"10.1148\/radiology.195.2.7724764","article-title":"Circle of Willis: evaluation with spiral CT angiography, MR angiography, and conventional angiography.","volume":"195","author":"Katz","year":"1995"},{"key":"b15","series-title":"Stroke","doi-asserted-by":"publisher","first-page":"846","DOI":"10.1161\/01.STR.15.5.846","article-title":"Cerebral aneurysms and variations in the circle of Willis.","volume":"15","author":"Kayembe","year":"1984"},{"key":"b16","series-title":"J Neurosurg","doi-asserted-by":"publisher","first-page":"73","DOI":"10.3171\/jns.1966.25.1.0073","article-title":"Aneurysms of the anterior communicating artery and gross anomalies of the circle of Willis.","volume":"25","author":"Kirgis","year":"1966"},{"key":"b17","series-title":"Anat Anz","first-page":"216","article-title":"Die verschiedenen Formen des Circulus arteriosus cerebralis Willisi. (Eine statistische Untersuchung von 325 menschlichen Gehirnen).","volume":"92","author":"Kleiss","year":"1941"},{"key":"b18","series-title":"Radiology","doi-asserted-by":"publisher","first-page":"103","DOI":"10.1148\/radiology.207.1.9530305","article-title":"Circle of Willis: morphologic variation on three-dimensional time-of-flight MR angiograms.","volume":"207","author":"Krabbe-Hartkamp","year":"1998"},{"key":"b19","series-title":"No Shinkei Geka","first-page":"1065","article-title":"[Hemodynamics in the anterior part of the circle of Willis in patients with the anterior communicating artery aneurysm-a study by cerebral angiography.]","volume":"6","author":"Kwak","year":"1978"},{"key":"b20","series-title":"Acta Radiol","doi-asserted-by":"publisher","first-page":"791","DOI":"10.1080\/02841859709172412","article-title":"Cerebral CT angiography in the diagnosis of acute subarachnoid hemorrhage.","volume":"38","author":"Lenhart","year":"1997"},{"key":"b21","series-title":"Ital J Anat Embryol","first-page":"115","article-title":"Magnetic resonance angiographic evaluation of circulus arteriosus cerebri (circle of Willis): a morphologic study in 100 human healthy subjects.","volume":"101","author":"Macchi","year":"1996"},{"key":"b22","series-title":"Acta Neurochir","doi-asserted-by":"publisher","first-page":"78","DOI":"10.1007\/BF01809337","article-title":"Branches of the anterior communicating artery. Microsurgical anatomy.","volume":"106","author":"Marinkovi\u0107","year":"1990"},{"key":"b23","series-title":"The Structure and Function of Nervous Tissue.","first-page":"537","article-title":"Vascular disorders of nervous tissue: anomalies, malformations, and aneurysms","volume":"3","author":"McCormick","year":"1969"},{"key":"b24","series-title":"J Neurosurg","doi-asserted-by":"publisher","first-page":"629","DOI":"10.3171\/jns.1992.76.4.0629","article-title":"Intraoperative anatomical studies in patients with aneurysms of the anterior communicating artery complex.","volume":"76","author":"Nathal","year":"1992"},{"key":"b25","series-title":"J Neurosurg","doi-asserted-by":"publisher","first-page":"706","DOI":"10.3171\/jns.1990.72.5.0706","article-title":"Vascular anomalies associated with aneurysms of the anterior communicating artery: microsurgical observations.","volume":"72","author":"Ogawa","year":"1990"},{"key":"b26","series-title":"Neuroradiology","doi-asserted-by":"publisher","first-page":"193","DOI":"10.1007\/BF00588129","article-title":"Magnetic resonance angiography (MRA) of the circle of Willis: a prospective comparison with conventional angiography in 54 subjects.","volume":"36","author":"Patrux","year":"1994"},{"key":"b27","series-title":"Neurosurgery","doi-asserted-by":"publisher","first-page":"228","DOI":"10.1227\/00006123-198702000-00005","article-title":"Microanatomy of the posterior communicating artery.","volume":"20","author":"Pedroza","year":"1987"},{"key":"b28","series-title":"J Neurosurg","doi-asserted-by":"publisher","first-page":"259","DOI":"10.3171\/jns.1976.45.3.0259","article-title":"Microsurgical anatomy of the anterior cerebral-anterior communicating-recurrent artery complex.","volume":"45","author":"Perlmutter","year":"1976"},{"key":"b29","series-title":"Anat Rec","first-page":"119","article-title":"Variation in form of circle of Willis: some anatomical and embryological considerations.","volume":"185","author":"Puchades-Orts","year":"1975"},{"key":"b30","series-title":"Arch Neurol","doi-asserted-by":"publisher","first-page":"8","DOI":"10.1001\/archneur.1963.00460010024002","article-title":"Variation in form of circle of Willis. The relation of the variations to collateral circulation: anatomical analysis.","volume":"8","author":"Riggs","year":"1963"},{"key":"b31","series-title":"J Neurol Sci","doi-asserted-by":"publisher","first-page":"83","DOI":"10.1016\/0022-510X(68)90127-5","article-title":"Recherches anatomiques sur les an\u00e9vrysmes art\u00e9riels intracraniens.","volume":"6","author":"Sachs","year":"1968"},{"key":"b32","series-title":"J Neurosurg","doi-asserted-by":"publisher","first-page":"563","DOI":"10.3171\/jns.1977.46.5.0563","article-title":"Microsurgical anatomy of the upper basilar artery and the posterior circle of Willis.","volume":"46","author":"Saeki","year":"1977"},{"key":"b33","series-title":"Arch Pathol","first-page":"45","article-title":"Aneurysms and anatomical variation of cerebral arteries.","volume":"75","author":"Stehbens","year":"1963"},{"key":"b34","series-title":"AJNR","first-page":"1495","article-title":"Anatomic evaluation of the circle of Willis: MR angiography versus intraarterial digital subtraction angiography.","volume":"17","author":"Stock","year":"1996"},{"key":"b35","series-title":"Clin Neurol Neurosurg","first-page":"169","article-title":"A study of the anatomy of the anterior communicating artery with the aid of the operating microscope.","volume":"80","author":"Tulleken","year":"1977"},{"key":"b36","series-title":"Acta Neurochir","doi-asserted-by":"publisher","first-page":"50","DOI":"10.1007\/BF01402371","article-title":"The basilar artery bifurcation: microscopical anatomy.","volume":"85","author":"Tulleken","year":"1987"},{"key":"b37","series-title":"Stroke","doi-asserted-by":"publisher","first-page":"2086","DOI":"10.1161\/01.STR.27.11.2086","article-title":"Hemodynamic study of the anterior communicating artery.","volume":"27","author":"Ujiie","year":"1996"},{"key":"b38","series-title":"The development of the variations of the human basal cerebral arteries. An ontogenetic study.","author":"van Overbeeke","year":"1991"},{"key":"b39","series-title":"J Anat","first-page":"45","article-title":"A comparative study of the circle of Willis in fetal and adult life. The configuration of the posterior bifurcation of the posterior communicating artery.","volume":"176","author":"van Overbeeke","year":"1991"},{"key":"b40","series-title":"J Neurosurg","doi-asserted-by":"publisher","first-page":"300","DOI":"10.3171\/jns.1970.32.3.0300","article-title":"Classification of anterior communicating aneurysms as a basis for surgical approach.","volume":"32","author":"VanderArk","year":"1970"},{"key":"b41","series-title":"Radiology","doi-asserted-by":"publisher","first-page":"423","DOI":"10.1148\/radiology.208.2.9680571","article-title":"Subarachnoid hemorrhage: aneurysm detection and preoperative evaluation with CT angiography.","volume":"208","author":"Velthuis","year":"1998"},{"key":"b42","series-title":"J Neurosurg","doi-asserted-by":"publisher","first-page":"761","DOI":"10.3171\/jns.1999.91.5.0761","article-title":"Computerized tomography angiography in patients with subarachnoid hemorrhage: from aneurysm detection to treatment without conventional angiography.","volume":"91","author":"Velthuis","year":"1999"},{"key":"b43","series-title":"Acta Anat","doi-asserted-by":"publisher","first-page":"51","DOI":"10.1159\/000141019","article-title":"Variationsstatistische Untersuchungen an den basalen hirngef\u00e4ssen.","volume":"24","author":"von Mitterwallner","year":"1955"},{"key":"b44","series-title":"J Neurosurg","doi-asserted-by":"publisher","first-page":"128","DOI":"10.3171\/jns.1954.11.2.0128","article-title":"The pathologic anatomy of ruptured cerebral aneurysms.","volume":"11","author":"Wilson","year":"1954"},{"key":"b45","series-title":"J Neurosurg","doi-asserted-by":"publisher","first-page":"534","DOI":"10.3171\/jns.1978.48.4.0534","article-title":"Microsurgical anatomy of the posterior cerebral artery.","volume":"48","author":"Zeal","year":"1978"},{"key":"b46","series-title":"Neurosurgery","doi-asserted-by":"publisher","first-page":"125","DOI":"10.1097\/00006123-199707000-00026","article-title":"Three-dimensional computed tomographic angiography in detection of cerebral aneurysms in acute subarachnoid hemorrhage.","volume":"41","author":"Zouaoui","year":"1997"}],"container-title":["Journal of Neurosurgery"],"original-title":[],"link":[{"URL":"https:\/\/thejns.org\/view\/journals\/j-neurosurg\/95\/2\/article-p206.xml","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/thejns.org\/downloadpdf\/journals\/j-neurosurg\/95\/2\/article-p206.xml","content-type":"text\/html","content-version":"vor","intended-application":"syndication"},{"URL":"https:\/\/thejns.org\/downloadpdf\/journals\/j-neurosurg\/95\/2\/article-p206.xml","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,3,26]],"date-time":"2023-03-26T20:57:15Z","timestamp":1679864235000},"score":1,"resource":{"primary":{"URL":"https:\/\/thejns.org\/view\/journals\/j-neurosurg\/95\/2\/article-p206.xml"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2001,8]]},"references-count":46,"journal-issue":{"issue":"2"},"URL":"https:\/\/doi.org\/10.3171\/jns.2001.95.2.0206","relation":{},"ISSN":["0022-3085"],"issn-type":[{"value":"0022-3085","type":"print"}],"subject":[],"published":{"date-parts":[[2001,8]]}}}