OSA's Digital Library

Applied Optics

Applied Optics


  • Vol. 41, Iss. 7 — Mar. 1, 2002
  • pp: 1454–1461

Method for reducing background artifacts from images in single-photon emission computed tomography with a uniformly redundant array coded aperture

Olga I. Vassilieva and Roy C. Chaney  »View Author Affiliations

Applied Optics, Vol. 41, Issue 7, pp. 1454-1461 (2002)

View Full Text Article

Enhanced HTML    Acrobat PDF (254 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools



Uniformly redundant array coded apertures have proven to be useful in the design of collimators for x-ray astronomy. They were initially expected to be equally successful in single-photon emission computed tomography (SPECT). Unfortunately, the SPECT images produced by this collimator contain artifacts, which mask the true picture and can lead to false diagnosis. Monte Carlo simulation has shown that the formation of a composite image will significantly reduce these artifacts. A simulation of a tumor in a compressed breast phantom has produced a composite image, which clearly indicates the presence of a 5 mm × 5 mm × 5 mm tumor with a 6:1 intensity ratio relative to the background tissue.

© 2002 Optical Society of America

OCIS Codes
(100.6950) Image processing : Tomographic image processing
(170.0110) Medical optics and biotechnology : Imaging systems
(170.1630) Medical optics and biotechnology : Coded aperture imaging
(170.6960) Medical optics and biotechnology : Tomography

Original Manuscript: February 14, 2001
Revised Manuscript: October 22, 2001
Published: March 1, 2002

Olga I. Vassilieva and Roy C. Chaney, "Method for reducing background artifacts from images in single-photon emission computed tomography with a uniformly redundant array coded aperture," Appl. Opt. 41, 1454-1461 (2002)

Sort:  Author  |  Year  |  Journal  |  Reset  


  1. E. E. Fenimore, T. M. Cannon, “Coded aperture with uniformly redundant arrays,” Appl. Opt. 17, 337–347 (1978). [CrossRef] [PubMed]
  2. E. E. Fenimore, T. M. Cannon, “Tomographical imaging using uniformly redundant arrays,” Appl. Opt. 18, 1052–1057 (1979). [CrossRef] [PubMed]
  3. J. Maublant, M. de Latour, D. Mestas, A. Clemenson, S. Charrier, V. Feillel, G. LeBouedec, P. Kaufmann, J. Dauplat, A. Vegre, “Technetium-99m-sestamibi uptake in breast tumor and associated lymph nodes,” J. Nucl. Med. 37, 922–925 (1996). [PubMed]
  4. P. Dunphy, M. McConnell, A. Owens, E. Chupp, D. Forrest, J. Googins, “A balloon-borne coded aperture telescope for low-energy gamma-ray astronomy,” Nucl. Instrum. Methods Phys. Res. A 274, 362–379 (1989). [CrossRef]
  5. F. J. MacWilliams, N. J. Sloane, “Pseudo-random sequences and arrays,” Proc. IEEE 64, 1715–1728 (1976). [CrossRef]
  6. L. Bomer, M. Antweiler, “Optimizing the aperiodic merit factor of binary arrays,” Signal Process. 30, 1–13 (1993). [CrossRef]
  7. H. Wang, C. Scarfone, K. L. Greer, R. E. Coleman, R. J. Jaszczak, “Prone breast tumor imaging using vertical axis-of-rotation (VAOR) SPECT systems: an initial study,” IEEE Trans. Nucl. Sci. 44, 1271–1275 (1997). [CrossRef]
  8. M. F. Smith, R. J. Jaszczak, “A rotating parallel hole collimator for high resolution imaging of medium energy radionuclides,” IEEE Trans. Nucl. Sci. 45, 2102–2112 (1998). [CrossRef]
  9. W. R. Cook, M. Finger, T. A. Prince, E. C. Stone, “Gamma ray imaging with a rotating hexagonal uniformly redundant array,” IEEE Trans. Nucl. Sci. 31, 771–775 (1984). [CrossRef]

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited