AJDRAJNR - American Journal of Neuroradiology

Published ahead of print on February 7, 2008
doi: 10.3174/ajnr.A0964
This Article
Right arrow Figures Only
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow All Versions of this Article:
ajnr.A0964v1
29/5/976    most recent
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Right arrow Citation Map
Services
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via CrossRef
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by van Rooij, W.J.
Right arrow Articles by Sluzewski, M.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by van Rooij, W.J.
Right arrow Articles by Sluzewski, M.

American Journal of Neuroradiology 29:976-979, May 2008
© 2008 American Society of Neuroradiology

INTERVENTIONAL

3D Rotational Angiography: The New Gold Standard in the Detection of Additional Intracranial Aneurysms

W.J. van Rooija, M.E. Sprengersa, A.N. de Gasta, J.P.P. Pelusoa and M. Sluzewskia

a From the Department of Radiology, St. Elisabeth Ziekenhuis, Tilburg, the Netherlands

Please address correspondence to Willem Jan van Rooij, MD, PhD, Department of Radiology, St. Elisabeth Ziekenhuis, Hilvarenbeekseweg 60, 5022 GC Tilburg, the Netherlands; e-mail: radiol{at}knmg.nl

BACKGROUND AND PURPOSE: During surgery of symptomatic aneurysms, additional small angiographic occult aneurysms are commonly found. With 3D rotational angiography (3DRA) small aneurysms are more easily depicted than with digital subtraction angiography (DSA). In this study we compare 3DRA with DSA in the depiction of small additional aneurysms.

MATERIALS AND METHODS: Three hundred fifty 3D datasets of 1 vascular tree of 350 patients with at least 1 intracranial aneurysm on the dataset were re-evaluated for the presence of additional aneurysms by 2 observers in consensus. Two other observers, blinded to the 3D images, re-evaluated DSA images of the same 350 vascular trees for these additional aneurysms. Results were compared.

RESULTS: In 350 3D datasets, 350 target aneurysms and 94 additional aneurysms were detected. The mean size of 94 additional aneurysms was 3.54 mm (median, 3; range, 0.5–17 mm). The proportion of aneurysms ≤3 mm was significantly higher in additional aneurysms (61 of 94, 65%) than in the target aneurysms (61 of 350, 17%) ({chi}2, P < .0001). Of 94 additional aneurysms, 27 (29%) were missed on DSA by both observers. The mean size of the missed aneurysms was 1.94 mm (median, 2; range, 0.5–4 mm). The proportion of aneurysms ≤3 mm in missed additional aneurysms (26 of 27, 96%) was significantly higher than that in all additional aneurysms (61 of 94, 65%) ({chi}2, P = .0035). The location of missed additional aneurysms was not different from the location of all additional aneurysms.

CONCLUSION: 3DRA depicts considerably more small (≤3 mm) additional aneurysms than DSA. In selected patients, accurate detection of these aneurysms may have consequences for the choice of treatment technique and for the frequency and duration of imaging follow-up.




This article has been cited by other articles:


Home page
 Am. J. Neuroradiol.Home page
W.J. van Rooij, J.P.P. Peluso, M. Sluzewski, and G.N. Beute
Additional Value of 3D Rotational Angiography in Angiographically Negative Aneurysmal Subarachnoid Hemorrhage: How Negative Is Negative?
AJNR Am. J. Neuroradiol., May 1, 2008; 29(5): 962 - 966.
[Abstract] [Full Text] [PDF]


Copyright © 2008 by the American Society of Neuroradiology. Print ISSN: 0195-6108 Online ISSN: 1936-959X