title: Image operations in quantification of atherosclerosis from digitized angiograms.
abstract: This report describes a method of quantifying the inner volume (lumen volume) of a contrast medium-filled femoral artery from a roentgenogram by computerized image analysis. The various factors influencing the accuracy of the volume determination are analyzed and an image-processing procedure for the elimination of artifacts due to crossing arteries is described and evaluated. The presented methods have been used in a large study of 281 patients and the short-term reproducibility has been found to be 1.00.
authors.affiliation: Department of Diagnostic Radiology, Akademiska sjukhuset, Uppsala, Sweden.
authors.forename: I
authors.initials: I
authors.lastname: Berglund
authors.forename: E
authors.initials: E
authors.lastname: Bengtsson
authors.forename: U
authors.initials: U
authors.lastname: Erikson
authors.forename: N
authors.initials: N
authors.lastname: Högman
authors.forename: S
authors.initials: S
authors.lastname: Nilsson
mesh_terms: D001161:Arteriosclerosis / Q000000981:diagnostic imaging*; D005263:Femoral Artery / Q000000981:diagnostic imaging*; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008961:Models, Structural; D011859:Radiography; D015203:Reproducibility of Results; D014584:User-Computer Interface