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The effects of axial transmission resolution in PET

Publication ,  Journal Article
Laymon, CM; Turkington, TG
Published in: IEEE Transactions on Nuclear Science
January 1, 2001

The effect of the axial resolution of transmission data for use in positron emission tomography (PET) attenuation correction is an important consideration for the design of transmission scanning systems. PET transmission data from five patient scans were used in conjunction with simulated uniform emission data to quantify the effect of degraded axial transmission resolution. PET patient emission data were also corrected for attenuation using transmission projection data that had various levels of axial resolution. Results from the uniform emission studies show that the effects of imperfect axial transmission resolution are always less than are those of comparable transaxial resolution. Conservative limits for the axial resolution requirements Gaussian full width at half-maximum)FWHM) for a transmission system were deduced. For quantitative work, a 1-cm resolution limit yields a root mean square (rms) voxel deviation of less than 5% in the lung region (the worst case) of a uniform tracer distribution. For qualitative studies, a 2-cm resolution limit yields an rms voxel-value deviation of less than 11%. Only small effects were observed on the patient emission image using transmission data with this resolution to produce an attenuation correction.

Duke Scholars

Published In

IEEE Transactions on Nuclear Science

DOI

ISSN

0018-9499

Publication Date

January 1, 2001

Volume

48

Issue

3

Start / End Page

876 / 882

Related Subject Headings

  • Nuclear & Particles Physics
  • 5106 Nuclear and plasma physics
  • 0903 Biomedical Engineering
  • 0299 Other Physical Sciences
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
 

Citation

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Laymon, C. M., & Turkington, T. G. (2001). The effects of axial transmission resolution in PET. IEEE Transactions on Nuclear Science, 48(3), 876–882. https://doi.org/10.1109/23.940179
Laymon, C. M., and T. G. Turkington. “The effects of axial transmission resolution in PET.” IEEE Transactions on Nuclear Science 48, no. 3 (January 1, 2001): 876–82. https://doi.org/10.1109/23.940179.
Laymon CM, Turkington TG. The effects of axial transmission resolution in PET. IEEE Transactions on Nuclear Science. 2001 Jan 1;48(3):876–82.
Laymon, C. M., and T. G. Turkington. “The effects of axial transmission resolution in PET.” IEEE Transactions on Nuclear Science, vol. 48, no. 3, Jan. 2001, pp. 876–82. Scopus, doi:10.1109/23.940179.
Laymon CM, Turkington TG. The effects of axial transmission resolution in PET. IEEE Transactions on Nuclear Science. 2001 Jan 1;48(3):876–882.

Published In

IEEE Transactions on Nuclear Science

DOI

ISSN

0018-9499

Publication Date

January 1, 2001

Volume

48

Issue

3

Start / End Page

876 / 882

Related Subject Headings

  • Nuclear & Particles Physics
  • 5106 Nuclear and plasma physics
  • 0903 Biomedical Engineering
  • 0299 Other Physical Sciences
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics