Analysis of image-reconstruction algorithms for circular, cone-beam CT by Hotelling observer performance on a detection task

Author

Sidky, Emil Y. ; Pan, Xiaochuan

Author_Institution

Dept. of Radiol., Univ. of Chicago, Chicago, IL, USA

fYear

2009

fDate

3-6 Sept. 2009

Firstpage

997

Lastpage

999

Abstract

We apply task-based evaluation methods to image-reconstruction in circular cone-beam CT. The particular task considered is that of detection of a micro-calcification of known location in a known background; namely a signal-known-exactly/background-known-exactly (SKE/BKE) detection task. The image-reconstruction algorithms are evaluated based on efficiency for detection. This task-based metric can be applied to any linear image-reconstruction algorithm, such as the FDK algorithm or other more recent approximate methods for image-reconstruction in circular, cone-beam CT.

Keywords

computerised tomography; image reconstruction; mammography; medical image processing; Hotelling observer performance; SKE-BKE detection task; background known exactly detection task; circular cone beam CT; image reconstruction algorithms; microcalcification detection; signal known exactly detection task; task based evaluation methods; task based metric; Algorithms; Cone-Beam Computed Tomography; Imaging, Three-Dimensional; Pattern Recognition, Automated; Radiographic Image Enhancement; Radiographic Image Interpretation, Computer-Assisted; Reproducibility of Results; Sensitivity and Specificity;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 2009. EMBC 2009. Annual International Conference of the IEEE

Conference_Location

Minneapolis, MN

ISSN

1557-170X

Print_ISBN

978-1-4244-3296-7

Electronic_ISBN

1557-170X

Type

conf

DOI

10.1109/IEMBS.2009.5333643

Filename

5333643