Noise properties of the chord-based algorithms for reduced scans

Author

Xia, Dan ; Zou, Yu ; Yu, Lifeng ; Sidky, Emil ; Pan, Xiaochuan

Author_Institution

Dept. of Radiol., Chicago Univ., IL

Volume

5

fYear

2005

fDate

23-29 Oct. 2005

Firstpage

2579

Lastpage

2582

Abstract

Progress in developing CT image reconstruction algorithms has been rapid in recent years. Some algorithms have been proposed to reconstruct exact ROI images from data that are less than the short scan data. These algorithms allow a reduction of the scanning effort and the radiation dose delivered to the patient. It is important to investigate the noise properties within reconstructed ROI images by use of these new algorithms because they are directly related to the accuracy of disease diagnosis. In this work, we study the noise properties of three reduced scan algorithms: BPF, MDFBP, and FBP

Keywords

computerised tomography; diseases; image reconstruction; medical image processing; noise; BPF; CT image reconstruction; FBP; MDFBP; chord-based algorithms; disease diagnosis; noise properties; reconstructed ROI images; reduced scans; Band pass filters; Computed tomography; Diseases; Image quality; Image reconstruction; Image segmentation; Noise reduction; Radiology; Reconstruction algorithms; X-ray imaging;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium Conference Record, 2005 IEEE

Conference_Location

Fajardo

ISSN

1095-7863

Print_ISBN

0-7803-9221-3

Type

conf

DOI

10.1109/NSSMIC.2005.1596865

Filename

1596865