Title
Analysis of an exact inversion algorithm for spiral cone-beam CT
Abbreviated Journal Title
Phys. Med. Biol.
Keywords
LONG-OBJECT PROBLEM; TOMOGRAPHY; RECONSTRUCTION; Engineering, Biomedical; Radiology, Nuclear Medicine & Medical Imaging
Abstract
In this paper we continue studying a theoretically exact filtered backprojection inversion formula for cone beam spiral CT proposed earlier by the author. Our results show that if the phantom f is constant along the axial direction, the formula is equivalent to the 2D Radon transform inversion. Also, the inversion formula remains exact as spiral pitch goes to zero and in the limit becomes again the 2D Radon transform inversion formula. Finally, we show that according to the formula the processed cone beam projections should be backprojected using both the inverse distance squared law and the inverse distance law.
Journal Title
Physics in Medicine and Biology
Volume
47
Issue/Number
15
Publication Date
1-1-2002
Document Type
Article; Proceedings Paper
Language
English
First Page
2583
Last Page
2597
WOS Identifier
ISSN
0031-9155
Recommended Citation
"Analysis of an exact inversion algorithm for spiral cone-beam CT" (2002). Faculty Bibliography 2000s. 3281.
https://stars.library.ucf.edu/facultybib2000/3281
Comments
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