CT angiography for the detection of cerebral aneurysms : an analysis of 436 verified cases

2008
journal article
article
dc.abstract.enBackground: The aim of the study was to evaluate the clinical value of computed tomography angiography (CTA) in patients suspected of cerebral aneurysms based on 436 verified cases, which is the largest CTA series in the world literature apart from multicenter studies. Material/Methods: The authors analyzed retrospectively the results of CTA performed with the use of a single-slice CT unit in 436 consecutive patients with suspicion of cerebral aneurysms during five years and compared them with cerebral angiography and/or surgical findings. Results: CTA revealed 369 cerebral aneurysms in 309 patients. There were 21 (4.8%) false negative and 14 (3.2%) false positive results. The false positives involved unclear cases (small aneurysms vs. vascular loop) and the false negatives concerned small aneurysms (£3 mm), mostly on the internal carotid artery and multiple aneurysms. The overall efficiency results were: sensitivity 94.4%, specificity 97.3%, accuracy 96.1%, positive predictive value 96.2%, and negative predictive value 96.0%. The highest accuracy was found for middle cerebral artery aneurysms (97.6%), followed by the vertebro-basilar system (96.6%), anterior communicating artery complex (96.5%), and internal carotid artery (93.6%) aneurysms. The sensitivity was 100% for aneurysms >5 mm, 96.7% for aneurysms 3-5 mm, and 77.8% for aneurysms £3 mm. Among 316 patients who were treated surgically, an operation was performed only on the basis of CTA in 264 cases (83.5%). Conclusions: CTA is a minimally invasive neuroimaging method of high diagnostic efficiency and should be a primary vascular examination in patients with suspicion of aneurysm allowing, in most cases, avoidance of invasive cerebral angiography.pl
dc.contributor.authorKowalewski, Krzysztofpl
dc.contributor.authorZimny, Annapl
dc.contributor.authorSąsiadek, Marekpl
dc.date.accession2019-05-17pl
dc.date.accessioned2019-05-17T08:50:49Z
dc.date.available2019-05-17T08:50:49Z
dc.date.issued2008pl
dc.date.openaccess0
dc.description.accesstimew momencie opublikowania
dc.description.additionalBibliogr. s. 34-36pl
dc.description.number3pl
dc.description.physical25-36pl
dc.description.versionostateczna wersja wydawcy
dc.description.volume73pl
dc.identifier.articleid866876pl
dc.identifier.eissn1899-0967pl
dc.identifier.issn1733-134Xpl
dc.identifier.projectROD UJ / OPpl
dc.identifier.urihttps://ruj.uj.edu.pl/xmlui/handle/item/75026
dc.identifier.weblinkhttp://archiwum.inforadiologia.pl/download/index/idArt/866876.htmlpl
dc.languageengpl
dc.language.containerengpl
dc.rightsUdzielam licencji. Uznanie autorstwa - Użycie niekomercyjne - Bez utworów zależnych 4.0 Międzynarodowa*
dc.rights.licenceCC-BY-NC-ND
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/legalcode.pl*
dc.share.typeotwarte czasopismo
dc.subject.enCT angiographypl
dc.subject.encerebral angiographypl
dc.subject.encerebral aneurysmspl
dc.subtypeArticlepl
dc.titleCT angiography for the detection of cerebral aneurysms : an analysis of 436 verified casespl
dc.title.journalPolish Journal of Radiologypl
dc.typeJournalArticlepl
dspace.entity.typePublication
dc.abstract.enpl
Background: The aim of the study was to evaluate the clinical value of computed tomography angiography (CTA) in patients suspected of cerebral aneurysms based on 436 verified cases, which is the largest CTA series in the world literature apart from multicenter studies. Material/Methods: The authors analyzed retrospectively the results of CTA performed with the use of a single-slice CT unit in 436 consecutive patients with suspicion of cerebral aneurysms during five years and compared them with cerebral angiography and/or surgical findings. Results: CTA revealed 369 cerebral aneurysms in 309 patients. There were 21 (4.8%) false negative and 14 (3.2%) false positive results. The false positives involved unclear cases (small aneurysms vs. vascular loop) and the false negatives concerned small aneurysms (£3 mm), mostly on the internal carotid artery and multiple aneurysms. The overall efficiency results were: sensitivity 94.4%, specificity 97.3%, accuracy 96.1%, positive predictive value 96.2%, and negative predictive value 96.0%. The highest accuracy was found for middle cerebral artery aneurysms (97.6%), followed by the vertebro-basilar system (96.6%), anterior communicating artery complex (96.5%), and internal carotid artery (93.6%) aneurysms. The sensitivity was 100% for aneurysms >5 mm, 96.7% for aneurysms 3-5 mm, and 77.8% for aneurysms £3 mm. Among 316 patients who were treated surgically, an operation was performed only on the basis of CTA in 264 cases (83.5%). Conclusions: CTA is a minimally invasive neuroimaging method of high diagnostic efficiency and should be a primary vascular examination in patients with suspicion of aneurysm allowing, in most cases, avoidance of invasive cerebral angiography.
dc.contributor.authorpl
Kowalewski, Krzysztof
dc.contributor.authorpl
Zimny, Anna
dc.contributor.authorpl
Sąsiadek, Marek
dc.date.accessionpl
2019-05-17
dc.date.accessioned
2019-05-17T08:50:49Z
dc.date.available
2019-05-17T08:50:49Z
dc.date.issuedpl
2008
dc.date.openaccess
0
dc.description.accesstime
w momencie opublikowania
dc.description.additionalpl
Bibliogr. s. 34-36
dc.description.numberpl
3
dc.description.physicalpl
25-36
dc.description.version
ostateczna wersja wydawcy
dc.description.volumepl
73
dc.identifier.articleidpl
866876
dc.identifier.eissnpl
1899-0967
dc.identifier.issnpl
1733-134X
dc.identifier.projectpl
ROD UJ / OP
dc.identifier.uri
https://ruj.uj.edu.pl/xmlui/handle/item/75026
dc.identifier.weblinkpl
http://archiwum.inforadiologia.pl/download/index/idArt/866876.html
dc.languagepl
eng
dc.language.containerpl
eng
dc.rights*
Udzielam licencji. Uznanie autorstwa - Użycie niekomercyjne - Bez utworów zależnych 4.0 Międzynarodowa
dc.rights.licence
CC-BY-NC-ND
dc.rights.uri*
http://creativecommons.org/licenses/by-nc-nd/4.0/legalcode.pl
dc.share.type
otwarte czasopismo
dc.subject.enpl
CT angiography
dc.subject.enpl
cerebral angiography
dc.subject.enpl
cerebral aneurysms
dc.subtypepl
Article
dc.titlepl
CT angiography for the detection of cerebral aneurysms : an analysis of 436 verified cases
dc.title.journalpl
Polish Journal of Radiology
dc.typepl
JournalArticle
dspace.entity.type
Publication
Affiliations

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