Imaging skeletal anatomy of injured cervical spine specimens: comparison of single-slice vs multi-slice helical CT.

Détails

ID Serval
serval:BIB_1F9E1942C55D
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
Imaging skeletal anatomy of injured cervical spine specimens: comparison of single-slice vs multi-slice helical CT.
Périodique
European Radiology
Auteur(s)
Obenauer S., Alamo L., Herold T., Funke M., Kopka L., Grabbe E.
ISSN
0938-7994
Statut éditorial
Publié
Date de publication
08/2002
Peer-reviewed
Oui
Volume
12
Numéro
8
Pages
2107-2111
Langue
anglais
Notes
Publication types: Comparative Study ; Journal Article
Résumé
Our objective was to compare a single-slice CT (SS-CT) scanner with a multi-slice CT (MS-CT) scanner in the depiction of osseous anatomic structures and fractures of the upper cervical spine. Two cervical spine specimens with artificial trauma were scanned with a SS-CT scanner (HighSpeed, CT/i, GE, Milwaukee, Wis.) by using various collimations (1, 3, 5 mm) and pitch factors (1, 1.5, 2, 3) and a four-slice helical CT scanner (LightSpeed, QX/i, GE, Milwaukee, Wis.) by using various table speeds ranging from 3.75 to 15 mm/rotation for a pitch of 0.75 and from 7.5 to 30 mm/rotation for a pitch of 1.5. Images were reconstructed with an interval of 1 mm. Sagittal and coronal multiplanar reconstructions of the primary and reconstructed data set were performed. For MS-CT a tube current resulting in equivalent image noise as with SS-CT was used. All images were judged by two observers using a 4-point scale. The best image quality for SS-CT was achieved with the smallest slice thickness (1 mm) and a pitch smaller than 2 resulting in a table speed of up to 2 mm per gantry rotation (4 points). A reduction of the slice thickness rather than of the table speed proved to be beneficial at MS-CT. Therefore, the optimal scan protocol in MS-CT included a slice thickness of 1.25 mm with a table speed of 7.5 mm/360 degrees using a pitch of 1.5 (4 points), resulting in a faster scan time than when a pitch of 0.75 (4 points) was used. This study indicates that MS-CT could provide equivalent image quality at approximately four times the volume coverage speed of SS-CT.
Mots-clé
Cervical Vertebrae/radiography, Humans, Image Processing, Computer-Assisted, Spinal Fractures/radiography, Tomography, X-Ray Computed/methods
Pubmed
Web of science
Création de la notice
08/04/2008 15:47
Dernière modification de la notice
20/08/2019 12:55
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