Document Detail


Contour based respiratory motion analysis for free breathing CT.
MedLine Citation:
PMID:  21839991     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
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.
Authors:
Justus Adamson; Tingliang Zhuang; Fang-Fang Yin
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-8-11
Journal Detail:
Title:  Computers in biology and medicine     Volume:  -     ISSN:  1879-0534     ISO Abbreviation:  -     Publication Date:  2011 Aug 
Date Detail:
Created Date:  2011-8-15     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  1250250     Medline TA:  Comput Biol Med     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2011 Elsevier Ltd. All rights reserved.
Affiliation:
Department of Radiation Oncology, Duke University Medical Center, Box 3295, Durham NC 27710, USA.
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