title: Performance evaluation of an automated system for registration and postprocessing of CT scans.
abstract: 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.
authors.affiliation: Department of Radiology, Massachusetts General Hospital, Boston, MA, USA. alpert@pet.mgh.harvard.edu
authors.forename: N M
authors.initials: NM
authors.lastname: Alpert
authors.forename: D
authors.initials: D
authors.lastname: Berdichevsky
authors.forename: Z
authors.initials: Z
authors.lastname: Levin
authors.forename: V
authors.initials: V
authors.lastname: Thangaraj
authors.forename: G
authors.initials: G
authors.lastname: Gonzalez
authors.forename: M H
authors.initials: MH
authors.lastname: Lev
mesh_terms: 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*