Three-dimensional volume rendering for magnetic resonance angiography in the screening and preoperative workup of intracranial aneurysms.

Détails

ID Serval
serval:BIB_D4CC5D8C4249
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Three-dimensional volume rendering for magnetic resonance angiography in the screening and preoperative workup of intracranial aneurysms.
Périodique
Journal of Neurosurgery
Auteur(s)
Maeder P.P., Meuli R.A., de Tribolet N.
ISSN
0022-3085
Statut éditorial
Publié
Date de publication
12/1996
Peer-reviewed
Oui
Volume
85
Numéro
6
Pages
1050-1055
Langue
anglais
Résumé
This study was undertaken to evaluate the capacity of three-dimensional (3-D) time-of-flight (TOF) magnetic resonance (MR) angiography with VoxelView (VV) 3-D volume rendering to detect and characterize intracranial aneurysms and to compare this rendering technique with that of maximum intensity projection (MIP). Forty patients with a total of 53 intracranial aneurysms (10 giant and subgiant, 43 saccular) were consecutively admitted to University Hospital, Lausanne, Switzerland, and investigated with 3-D TOF MR angiography. Source images of the 43 saccular aneurysms were processed with both MIP and VV. The aneurysm detection rate of the two techniques and their ability to characterize features of an aneurysm, such as its neck and its relation to the parent vessel, were compared. Intraarterial digital subtraction angiography was used as the gold standard to which these techniques could be compared and evaluated. Four aneurysms, less than 3 mm in size, were missed using MIP compared to three missed using VV. The representation of aneurysmal morphology using VV was superior to that found using conventional angiography in nine cases, equal in 16 cases, and inferior in seven cases. The representation of the aneurysm neck using VV was superior to MIP in 21 cases, equal in 17 cases, and inferior in one case; it was superior to that shown using conventional angiography in 10 cases, equal in 18 cases, and inferior in four cases. Time-of-flight MR angiography in conjunction with both MIP and VV 3-D reconstruction was able to visualize all aneurysms that were larger than 3 mm. Compared to MIP, VV provides a better definition of the aneurysm neck and the morphology of saccular aneurysms, making VV valuable for use in a preoperative diagnostic workup.
Mots-clé
Adult, Aged, Female, Humans, Image Enhancement, Intracranial Aneurysm/diagnosis, Magnetic Resonance Angiography/methods, Male, Middle Aged
Pubmed
Web of science
Création de la notice
11/04/2008 9:23
Dernière modification de la notice
20/08/2019 16:54
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