X-ray computed tomography for medical imaging

Author

Hiriyannaiah, H.P.

Author_Institution

InfoGrain Inc., Cupertino, CA

Volume

14

Issue

2

fYear

1997

fDate

3/1/1997 12:00:00 AM

Firstpage

42

Lastpage

59

Abstract

The article looks at reconstruction in 2-D and 3-D tomography. We have not dealt with some of the issues in reconstruction such as sampling and aliasing artifacts, finite detector aperture artifacts, beam hardening artifacts, etc., in greater detail since these are beyond the scope of an introductory tutorial. We examine the physical and mathematical concepts of the Radon (1917) transform, and the basic parallel beam reconstruction algorithms are discussed. We also develop the algorithms for fan-beam CT, and discuss the mathematical principles of cone-beam CT

Keywords

Radon transforms; computerised tomography; image reconstruction; image sampling; medical image processing; 2D tomography; 3D tomography; Radon transform; X-ray computed tomography; aliasing artifacts; beam hardening artifacts; cone-beam CT; fan-beam CT; finite detector aperture artifacts; image reconstruction; mathematical principles; medical imaging; parallel beam reconstruction algorithms; sampling; tutorial; Attenuation; Biomedical imaging; Computed tomography; Detectors; Differential equations; Electromagnetic scattering; Electromagnetic wave absorption; Particle scattering; X-ray imaging; X-ray scattering;

fLanguage

English

Journal_Title

Signal Processing Magazine, IEEE

Publisher

ieee

ISSN

1053-5888

Type

jour

DOI

10.1109/79.581370

Filename

581370