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This Article Figures Only Full Text Full Text (PDF) All Versions of this Article: ajnr.A0699v1 ajnr.A0699v2 28/10/1949 most recent Alert me when this article is cited Alert me if a correction is posted Citation Map Services Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via CrossRef Citing Articles via Google Scholar Google Scholar Articles by Lubicz, B. Articles by Balériaux, D. Search for Related Content PubMed PubMed Citation Articles by Lubicz, B. Articles by Balériaux, D. Hotlight (NEW!) What's Hotlight? American Journal of Neuroradiology 28:1949-1955, November-December 2007 © 2007 American Society of Neuroradiology BRAIN Sixty-Four-Row Multisection CT Angiography for Detection and Evaluation of Ruptured Intracranial Aneurysms: Interobserver and Intertechnique Reproducibility B. Lubicz a , M. Levivier b , O. François a , P. Thoma a , N. Sadeghi a , L. Collignon a and D. Balériaux a a Departments of Neuroradiology, Erasme University Hospital, Brussels, Belgium b Departments of Neurosurgery, Erasme University Hospital, Brussels, Belgium Please address correspondence to Boris Lubicz (EA 2691), Service de Radiologie, Hôpital Erasme, 808 route de Lennik, 1070 Bruxelles, Belgium; e-mail: blubicz@ulb.ac.be BACKGROUND AND PURPOSE: The purpose of this work was to assess intertechnique and interobserver reproducibility of 64-row multisection CT angiography (CTA) used to detect and evaluate intracranial aneurysms. MATERIALS AND METHODS: From October 2005 to November 2006, 54 consecutive patients with nontraumatic subarachnoid hemorrhage (SAH) underwent both CTA and digital substraction angiography (DSA). Four radiologists independently reviewed CT images, and 2 other radiologists reviewed DSA images. Aneurysm diameter (D), neck width (N), and the presence of a branch arising from the sac were assessed. RESULTS: DSA revealed 67 aneurysms in 48 patients and no aneurysm in 6 patients. Mean sensitivity and specificity of CTA for the detection of intracranial aneurysms were, respectively, 94% and 90.2%. For aneurysms less than 3 mm, CTA had a mean sensitivity of 70.4%. Intertechnique and interobserver agreements were good for the detection of aneurysms (mean = 0.673 and 0.732, respectively) and for the measurement of their necks (mean = 0.753 and 0.779, respectively). Intertechnique and interobserver agreements were excellent for the measurement of aneurysm diameters (mean = 0.847 and 0.876, respectively). In addition, CTA was accurate in determining the N/D ratio of aneurysms and adjacent arterial branches. However, the N/D ratio was overestimated by all of the readers at CTA. CONCLUSION: Sixty-four-row multisection CTA is an imaging method with a good interobserver reproducibility and a high sensitivity and specificity for the detection and the morphologic evaluation of ruptured intracranial aneurysms. It may be used as an alternative to DSA as a first-intention imaging technique in patients with SAH. This article has been cited by other articles: Y. Murakami, S. Kakeda, K. Kamada, N. Ohnari, J. Nishimura, M. Ogawa, K. Otsubo, Y. Morishita, and Y. Korogi Effect of Tube Voltage on Image Quality in 64-Section Multidetector 3D CT Angiography: Evaluation with a Vascular Phantom with Superimposed Bone Skull Structures AJNR Am. J. Neuroradiol., April 1, 2010; 31(4): 620 - 625. Abstract Full Text PDF R. Agid, T. Andersson, H. Almqvist, R. A. Willinsky, S. K. Lee, K. G. terBrugge, R. I. Farb, and M. Soderman Negative CT Angiography Findings in Patients with Spontaneous Subarachnoid Hemorrhage: When Is Digital Subtraction Angiography Still Needed? AJNR Am. J. 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Hoang, and O. F. Hennessy Infected (Mycotic) Aneurysms: Spectrum of Imaging Appearances and Management1 RadioGraphics, November 1, 2008; 28(7): 1853 - 1868. Abstract Full Text PDF R. R. Livingston Regarding the Risk of Death from CT Angiography in Patients with Subarachnoid Hemorrhage AJNR Am. J. Neuroradiol., June 1, 2008; 29(6): e44 - e44. Full Text PDF T. J. Kaufmann and D. F. Kallmes Diagnostic Cerebral Angiography: Archaic and Complication-Prone or Here to Stay for Another 80 Years? Am. J. Roentgenol., June 1, 2008; 190(6): 1435 - 1437. Full Text PDF Home Subscribe Author Instructions Submit Online Search the AJNR Archives Feedback Help Copyright © 2010 by the American Society of Neuroradiology. Print ISSN: 0195-6108 Online ISSN: 1936-959X
American Journal of Neuroradiology – American Journal of Neuroradiology
Published: Nov 1, 2007
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