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Analytic determination of the pinhole collimator's point-spread function and RMS resolution with penetration.

Publication ,  Journal Article
Metzler, SD; Bowsher, JE; Greer, KL; Jaszczak, RJ
Published in: IEEE Trans Med Imaging
August 2002

Pinhole collimators are widely used to image small organs and animals. The pinhole response function (PRF) of knife-edge pinhole collimators has been estimated previously using geometric constructions without considering penetration and using "roll-off" models that employ an exponential model for the flux. An analytic expression for the PRF on the imaging plane that includes the effect of aperture penetration is derived in this paper by calculating the flux for photons passing through the aperture and those passing through the attenuating material. The PRF is then used to approximate the angular-dependent root-mean-square resolution in the directions parallel and perpendicular to the tilt of the point source. The corresponding aspect ratio is then obtained. The formulas are then compared with experimental data.

Duke Scholars

Published In

IEEE Trans Med Imaging

DOI

ISSN

0278-0062

Publication Date

August 2002

Volume

21

Issue

8

Start / End Page

878 / 887

Location

United States

Related Subject Headings

  • Tomography, Emission-Computed, Single-Photon
  • Sensitivity and Specificity
  • Reproducibility of Results
  • Photons
  • Phantoms, Imaging
  • Nuclear Medicine & Medical Imaging
  • Models, Theoretical
  • Image Enhancement
  • Computer Simulation
  • 46 Information and computing sciences
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Metzler, S. D., Bowsher, J. E., Greer, K. L., & Jaszczak, R. J. (2002). Analytic determination of the pinhole collimator's point-spread function and RMS resolution with penetration. IEEE Trans Med Imaging, 21(8), 878–887. https://doi.org/10.1109/tmi.2002.803129
Metzler, S. D., J. E. Bowsher, K. L. Greer, and R. J. Jaszczak. “Analytic determination of the pinhole collimator's point-spread function and RMS resolution with penetration.IEEE Trans Med Imaging 21, no. 8 (August 2002): 878–87. https://doi.org/10.1109/tmi.2002.803129.
Metzler SD, Bowsher JE, Greer KL, Jaszczak RJ. Analytic determination of the pinhole collimator's point-spread function and RMS resolution with penetration. IEEE Trans Med Imaging. 2002 Aug;21(8):878–87.
Metzler, S. D., et al. “Analytic determination of the pinhole collimator's point-spread function and RMS resolution with penetration.IEEE Trans Med Imaging, vol. 21, no. 8, Aug. 2002, pp. 878–87. Pubmed, doi:10.1109/tmi.2002.803129.
Metzler SD, Bowsher JE, Greer KL, Jaszczak RJ. Analytic determination of the pinhole collimator's point-spread function and RMS resolution with penetration. IEEE Trans Med Imaging. 2002 Aug;21(8):878–887.

Published In

IEEE Trans Med Imaging

DOI

ISSN

0278-0062

Publication Date

August 2002

Volume

21

Issue

8

Start / End Page

878 / 887

Location

United States

Related Subject Headings

  • Tomography, Emission-Computed, Single-Photon
  • Sensitivity and Specificity
  • Reproducibility of Results
  • Photons
  • Phantoms, Imaging
  • Nuclear Medicine & Medical Imaging
  • Models, Theoretical
  • Image Enhancement
  • Computer Simulation
  • 46 Information and computing sciences