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Evaluation of Postoperative Status after Clipping Surgery in Patients with Cerebral Aneurysm on 3‐Dimensional‐CT Angiography with Elimination of Clips
Author(s) -
Tomura Noriaki,
Sakuma Ikuo,
Otani Takahiro,
Nisii Toshiaki,
Sugawara Makoto,
Koga Makoto,
Takahashi Satoshi,
Yanagisawa Toshiharu,
Mizoi Kazuo
Publication year - 2011
Publication title -
journal of neuroimaging
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.822
H-Index - 64
eISSN - 1552-6569
pISSN - 1051-2284
DOI - 10.1111/j.1552-6569.2009.00435.x
Subject(s) - medicine , clips , digital subtraction angiography , clipping (morphology) , radiology , computed tomography angiography , gold standard (test) , angiography , receiver operating characteristic , aneurysm , subtraction , surgery , linguistics , philosophy , arithmetic , mathematics
BACKGROUND AND PURPOSE The use of 3‐dimensional computed tomography angiography (3D‐CTA) for clipped aneurysms is limited. Usefulness of 3D‐CTA with elimination of bone and clips was evaluated in patients with clipped cerebral aneurysms.METHODS Forty‐three clipped cerebral aneurysms were included. As review of digital subtraction angiography after surgery is the current gold standard, the presence or absence of remnant necks on 3D‐CTA with elimination of bone and clips was compared with that on conventional CTA, using receiver operating characteristic analysis (5, definitely absent; 1, definitely present).RESULTS In the ROC analysis, the Az (.949) in CTA with clip elimination significantly ( P < .05) differed from that (.751) of conventional 3D‐CTA. If a score of 1 or 2 is considered to represent positive detection of remnant necks, then the sensitivity of 3D‐CTA with clip elimination and of conventional 3D‐CTA is 73% and 36%, respectively. If a score of 5 or 4 is considered to represent negative detection of remnant necks, then the specificity of 3D‐CTA with clip elimination and of conventional 3D‐CTA is 88% and 78%, respectively.CONCLUSIONS 3D‐CTA with elimination of bone and clips can improve the accuracy of detection of remnant necks after clipping surgery for cerebral aneurysms.