Paper Info
Title
Dual-Energy electronic cleansing for artifact-free visualization of the colon in fecal-tagging CT colonography
Abstract
The partial volume effect (PVE) is one of the major causes of the artifacts in electronic cleansing (EC) for fecal-tagging CT colonography (CTC). In this study, we developed a novel dual-energy EC (DC-EC) scheme for minimizing the EC artifacts caused by the PVE. In our approach, the colonic lumen, including air and tagged fecal materials, was first marked by a dual-energy index (DEI). The high DEI value of air and tagged fecal materials provides a means to efficiently differentiate the voxels at the boundary between air and tagged materials from those of the soft-tissue structures that have the DEI value of around zero. As a result, the colonic lumen, including air and tagged materials, could be accurately segmented based on their high DEI values. Our DE-EC scheme was shown to provide an electronically cleansed colon that is free from artifacts caused by the PVE at the air-tagging boundary.
Year
DOI
Venue
2011
10.1007/978-3-642-28557-8_2
Abdominal imaging
Keywords
Field
DocType
ec artifact,fecal material,dual-energy electronic cleansing,dual-energy index,colonic lumen,cleansed colon,de-ec scheme,fecal-tagging ct colonography,artifact-free visualization,air-tagging boundary,novel dual-energy ec,high dei value,dei value
Voxel,Nuclear medicine,Visualization,Colonic lumen,Radiology,Partial volume,Medicine
Conference
Citations 
PageRank 
References 
0
0.34
6
Authors
4
Name
Order
Citations
PageRank
Wenli Cai111816.57
June-Goo Lee2143.52
Se Hyung Kim3174.49
Hiroyuki Yoshida45013.16