Performance evaluation of an automated system for registration and postprocessing of CT scans.
A prototype system optimized for automatic registration of CT scans and applications such as subtraction enhancement and CT angiography was evaluated. Co-registration was performed on 50 studies of various types, including CT angiograms. Mean registration speed was 109 s; accuracy was 2.0 mm. Examples of subtraction enhancement and automatic extraction of the vascular tree are provided. Unattended registration was demonstrated in routine application. Subtraction-enhanced images and extraction of the vascular tree may be useful in clinical practice.
Alpert
N M
NM
Department of Radiology, Massachusetts General Hospital, Boston, MA, USA. alpert@pet.mgh.harvard.edu
Berdichevsky
D
D
Levin
Z
Z
Thangaraj
V
V
Gonzalez
G
G
Lev
M H
MH
D001330:Electronic Data Processing; D006801:Humans; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D016347:Medical Records Systems, Computerized; D012189:Retrospective Studies; D012680:Sensitivity and Specificity; D014057:Tomography, X-Ray Computed / Q000379:methods*