Cone-beam reconstruction for Micro-CT

Author

Ge Wang ; Jiang, Ming ; Lee, Seung Wook ; Liu, Hong ; Hoffman, Eric

Author_Institution

Dept. of Radiol., Iowa Univ., Iowa City, IA, USA

fYear

2002

fDate

2002

Firstpage

384

Lastpage

387

Abstract

X-ray micro-CT has been a focus in the CT/Micro-CT Lab, the University of Iowa. In this paper, some recent progress we made on cone-beam micro-CT is described. First, we address approximation reconstruction using Feldkamp-type algorithms with multiple X-ray sources and displaced detector configurations. Then, we explain three types of artifacts associated with exact reconstruction in the Grangeat framework. Finally, we report the convergence of a generalized block-iterative Landweber scheme. Representative images from simulation and experiments are also given.

Keywords

computerised tomography; convergence of numerical methods; image reconstruction; iterative methods; medical image processing; Feldkamp-type algorithms; Grangeat framework; X-ray micro-CT; approximation reconstruction; artifacts; cone-beam reconstruction; convergence; displaced detector configurations; exact reconstruction; experiments; generalized block-iterative Landweber scheme; multiple X-ray sources; representative images; simulation; Data acquisition; Image reconstruction; Image resolution; Lungs; Mice; Optical imaging; Sensor arrays; X-ray detection; X-ray detectors; X-ray imaging;

fLanguage

English

Publisher

ieee

Conference_Titel

Biomedical Imaging, 2002. Proceedings. 2002 IEEE International Symposium on

Print_ISBN

0-7803-7584-X

Type

conf

DOI

10.1109/ISBI.2002.1029274

Filename

1029274