Iterative and analytical reconstruction algorithms for varying-focal- length cone-beam projections

Physics in Medicine and Biology

Volumn 43, Issue 4, 1998, Pages 811-821

  Zeng, Gengsheng L ^a   Gullberg, Grant T ^a  

^a UNIVERSITY OF UTAH SCHOOL OF MEDICINE   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

ALGORITHM; ARTICLE; COLLIMATOR; FILTRATION; GEOMETRY; IMAGE RECONSTRUCTION; PRIORITY JOURNAL; SINGLE PHOTON EMISSION COMPUTER TOMOGRAPHY;

ALGORITHMS; BRAIN; HUMANS; IMAGE PROCESSING, COMPUTER-ASSISTED; LIKELIHOOD FUNCTIONS; MODELS, THEORETICAL; PHANTOMS, IMAGING; TOMOGRAPHY, EMISSION-COMPUTED, SINGLE-PHOTON;

EID: 0031961188     PISSN: 00319155     EISSN: None     Source Type: Journal    
DOI: 10.1088/0031-9155/43/4/010     Document Type: Article

References (15)

1. Cao Z and Tsui BMW 1994 An analytical reconstruction algorithm for multifocal converging-beam SPECT Phys. Med. Biol. 39 281-91
2. Feldkamp L A, Davis L C and Kress J W 1984 Practical cone-beam algorithm J. Opt. Soc. Am. A 1 612-19
3. Grangaet 1987 Analysis d'un systeme d'imagerie 3D par reconstruction a partir de X en geometrie conique PhD Thesis l'Ecole Nationale Superieure des Telecommunications
4. Guillemaud R and Grangeat P 1994 A multifocal collimator with circularly distributed focal points for SPECT imaging IEEE Trans. Nucl. Sci. 41 1473-80
5. Gullberg G T, Christian P E, Zeng G L, Datz F L and Morgan H T 1991 Cone beam tomography of the heart using single-photon emission-computed tomography Invest. Radiol. 26 681-8
6. Gullberg G T, Zeng G L, Tsui, B M W and Hagius J T 1989 An iterative reconstruction algorithm for single photon emission computed tomography with cone beam geometry Int. J. Imaging Syst. Technol. 1 169-86
7. Hsieh J 1989a Scintillation camera and three-dimensional multifocal collimator used therewith United States Patent 4820924
8. _1989b Scintillation camera and multifocal fan-beam collimator used therein United States Patent 4823017
9. Jaszczak R J, Floyd C E, Manglos S H, Greer K L and Coleman R E 1986 Cone beam collimation for single photon emission computed tomography: analysis, simulation, and image reconstruction using filtered backprojection Med. Phys. 13 484-9
10. Jaszczak R J, Greer K L and Coleman R E 1988 SPECT using a specially designed cone beam collimator J. Nucl. Med. 29 1398-405
11. Jaszczak R J, Li J, Wang H and Coleman R E 1992a Three-dimensional SPECT reconstruction of combined cone beam and parallel beam data Phys. Med. Biol. 37 535-48
12. Jaszczak R J, Li J, Wang H and Coleman R E 1992b SPECT collimation having spatially variant focusing (SVF) J. Nucl. Med. 33 891 (abstract)
13. Palamodov V. P 1991 Inversion formulas for the three-dimensional ray transform Mathematical Methods in Tomography (Lecture Notes in Mathematics 1497) ed G T Herman, A K Louis and F Natterer (Berlin: Springer) pp 53-62
14. Zeng G L and Gullberg G T 1994 A backprojection filtering algorithm for a spatially varying-focal length collimator IEEE Trans. Med. Imaging 13 549-56
15. Zeng G L, Gullberg G T, Jaszczak R J and Li J 1993 Fan-beam convolution reconstruction algorithm for a spatially varying focal length collimator IEEE Trans. Med. Imaging 12 575-82