Paper Info
Title
Contour based respiratory motion analysis for free breathing CT.
Abstract
We propose a method to quantify superior-inferior (SI) motion of a rigid target using the 3D contour from free-breathing CT (FBCT). The technique utilizes similarity between 2D contours (Jaccard Index) and a population based density function for probability of motion amplitude, and is applicable both when the static target shape is and is not known beforehand. Simulations and phantom measurements showed that motion reconstruction is often feasible, with decreasing accuracy as discrepancy is introduced between assumed and actual static shape. When no static shape is used the analysis is most robust for slow scanning speeds relative to the motion period.
Year
DOI
Venue
2011
10.1016/j.compbiomed.2011.08.002
Comp. in Bio. and Med.
Keywords
DocType
Volume
static shape,motion period,static target shape,motion amplitude,motion reconstruction,actual static shape,free breathing,jaccard index,respiratory motion analysis,rigid target,density function,free-breathing ct
Journal
41
Issue
ISSN
Citations 
10
1879-0534
0
PageRank 
References 
Authors
0.34
3
3
Name
Order
Citations
PageRank
Justus Adamson100.34
Tingliang Zhuang200.34
Fang-Fang Yin3145.24