Paper Info
Title
A method for detecting undisplayed regions in virtual colonoscopy and its application to quantitative evaluation of fly-through methods.
Abstract
When virtual endoscopy is used as a diagnostic tool, especially as a tool for detecting colon polyps, the user often performs automated fly-through based on automatically generated paths. In the case of automated fly-through in the colon, there are some blind areas at the backs of folds. The aim of this study is to detect undisplayed regions during fly-through and to perform quantitative evaluation.Undisplayed regions are detected by marking displayed triangles for surface rendering or displayed voxels for volume rendering. The voxels or triangles not having displayed marks are considered to be undisplayed triangles or voxels. Various kinds of automated fly-through paths generated from medial axes of the colon and flattened views of the colon from the viewpoint of the rate of undisplayed regions are evaluated.The experiment results show that about 30% of colon regions are classified as undisplayed regions by the conventional automated fly-through along the medial axis and that the flattened view results in very few undisplayed regions.There is a possibility that the automated fly-through methods may cause many undisplayed regions.
Year
DOI
Venue
2002
10.1016/S1076-6332(03)00545-2
Academic Radiology
Keywords
Field
DocType
conventional automated fly-through,diagnostic tool,virtual endoscopy,medial axis,automated fly-through path,automated fly-through,quantitative evaluation,undisplayed regions,virtual colonoscopy,virtual endoscope system,fly-through methods,colon region,colon polyp,fly-through,undisplayed region
Computer vision,Pattern recognition,Computer science,Medial axis,Colon polyps,Artificial intelligence,Virtual colonoscopy
Conference
Volume
Issue
ISSN
10
12
1076-6332
ISBN
Citations 
PageRank 
3-540-44225-1
5
0.58
References 
Authors
10
5
Name
Order
Citations
PageRank
Yuichiro Hayashi114724.97
Kensaku Mori21125160.28
Jun-ichi Hasegawa322161.17
Y Suenaga4737187.41
Jun-ichiro Toriwaki5578136.04