A Parallel Reconstruction Algorithm for Spiral Cone-Beam Transmission CT

Author

Xue, Guowei ; Zhang, Yan

Author_Institution

Key Lab. of Network Oriented Intell. Comput., Harbin Inst. of Technol., Shenzhen, China

Volume

1

fYear

2010

fDate

12-14 April 2010

Firstpage

294

Lastpage

298

Abstract

Katsevich proposed the first theoretically exact reconstruction formula for spiral cone-beam CT which is computation quite intensive. The main bottleneck is that the memory storing the projection data has to be accessed for many times. Given that one single source position s belongs to S different Â¿-intervals, and the corresponding Â¿-line contains N voxels, then the projection data at position s has to be accessed for O(SÃ—N) times. In this work, we propose a parallel algorithm which can reduce the times accessing the memory down to one.

Keywords

computerised tomography; image reconstruction; parallel algorithms; memory storage; parallel reconstruction algorithm; projection data; spiral cone-beam transmission CT; Computed tomography; Computer networks; Concurrent computing; Geometry; Image reconstruction; Intelligent networks; Laboratories; Parallel algorithms; Reconstruction algorithms; Spirals; Hardware Acceleration; Parallel Algorithm; Spiral Cone-Beam CT Image Reconstruction;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications and Mobile Computing (CMC), 2010 International Conference on

Conference_Location

Shenzhen

Print_ISBN

978-1-4244-6327-5

Electronic_ISBN

978-1-4244-6328-2

Type

conf

DOI

10.1109/CMC.2010.39

Filename

5471467