4D Lung Reconstruction with Phase Optimization

被引:0
|
作者
Lyksborg, Mark [1 ]
Paulsen, Rasmus [1 ]
Brink, Carsten [2 ]
Larsen, Rasmus [1 ]
机构
[1] Tech Univ Denmark, Informat & Math Modeling, Bldg 321, DK-2800 Lyngby, Denmark
[2] Odense Univ Hosp, Lab Radiat Phys, DK-5000 Odense M, Denmark
来源
WORLD CONGRESS ON MEDICAL PHYSICS AND BIOMEDICAL ENGINEERING, VOL 25, PT 4: IMAGE PROCESSING, BIOSIGNAL PROCESSING, MODELLING AND SIMULATION, BIOMECHANICS | 2010年 / 25卷
关键词
Registration; Motion Correction; 4D Lung CT; L-BFGS; Optimization;
D O I
暂无
中图分类号
R318 [生物医学工程];
学科分类号
0831 ;
摘要
This paper investigates and demonstrates a 4D lung CT reconstruction/registration method which results in a complete volumetric model of the lung that deforms according to a respiratory motion field. The motion field is estimated iteratively between all available slice samples and a reference volume which is updated on the fly. The method is two part and the second part of the method aims to correct wrong phase information by employing another iterative optimizer. This two part iterative optimization allows for complete reconstruction at any phase and it will be demonstrated that it is better than using an optimization which does not correct for phase errors. Knowing how the lung and any tumors located within the lung deforms is relevant in planning the treatment of lung cancer.
引用
收藏
页码:2227 / 2230
页数:4
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