Image operations in quantification of atherosclerosis from digitized angiograms.
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.
Berglund
I
I
Department of Diagnostic Radiology, Akademiska sjukhuset, Uppsala, Sweden.
Bengtsson
E
E
Erikson
U
U
Högman
N
N
Nilsson
S
S
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