Transmission measurements using iterative conebeam reconstruction on the inveon DPET

Mark W. Lenox, Jens Gregor, Stefan Siegel

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Transmission measurements are performed on PET tomographs to create attenuation correction factors for quantitatively accurate images. There are several opportunities within the Inveon Dedicated PET (DPET) to improve the overall performance of the system. The transmission mechanism has a number of characteristics that make it suitable for conebeam-like reconstruction techniques similar to those used in X-ray CT, leading to more accurate attenuation correction factors. Typical reconstruction techniques used in CT with curved detectors involve relatively narrow transaxial fan angles, even narrower axial cone angles, and a source to detector distance which is the detector's radius of curvature. The Inveon DPET transmission source to detector distance is approximately twice the detector's radius of curvature, resulting in a number of challenges for reconstruction. In addition, the use of a lower energy 60 keV source could provide additional contrast In this work we describe and present preliminary results on the issues introduced by the extreme geometry of the system, reconstruction approaches incorporating system models, iterative techniques and source optimization.

Original languageEnglish (US)
Title of host publication2008 IEEE Nuclear Science Symposium Conference Record, NSS/MIC 2008
Pages4711-4717
Number of pages7
DOIs
StatePublished - Dec 1 2008
Event2008 IEEE Nuclear Science Symposium Conference Record, NSS/MIC 2008 - Dresden, Germany
Duration: Oct 19 2008Oct 25 2008

Publication series

NameIEEE Nuclear Science Symposium Conference Record
ISSN (Print)1095-7863

Other

Other2008 IEEE Nuclear Science Symposium Conference Record, NSS/MIC 2008
CountryGermany
CityDresden
Period10/19/0810/25/08

Fingerprint

X Ray Computed Tomography
detectors
attenuation
curvature
radii
fans
cones
optimization
geometry
x rays

All Science Journal Classification (ASJC) codes

  • Radiation
  • Nuclear and High Energy Physics
  • Radiology Nuclear Medicine and imaging

Cite this

Lenox, M. W., Gregor, J., & Siegel, S. (2008). Transmission measurements using iterative conebeam reconstruction on the inveon DPET. In 2008 IEEE Nuclear Science Symposium Conference Record, NSS/MIC 2008 (pp. 4711-4717). [4774476] (IEEE Nuclear Science Symposium Conference Record). https://doi.org/10.1109/NSSMIC.2008.4774476

Transmission measurements using iterative conebeam reconstruction on the inveon DPET. / Lenox, Mark W.; Gregor, Jens; Siegel, Stefan.

2008 IEEE Nuclear Science Symposium Conference Record, NSS/MIC 2008. 2008. p. 4711-4717 4774476 (IEEE Nuclear Science Symposium Conference Record).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Lenox, MW, Gregor, J & Siegel, S 2008, Transmission measurements using iterative conebeam reconstruction on the inveon DPET. in 2008 IEEE Nuclear Science Symposium Conference Record, NSS/MIC 2008., 4774476, IEEE Nuclear Science Symposium Conference Record, pp. 4711-4717, 2008 IEEE Nuclear Science Symposium Conference Record, NSS/MIC 2008, Dresden, Germany, 10/19/08. https://doi.org/10.1109/NSSMIC.2008.4774476
Lenox MW, Gregor J, Siegel S. Transmission measurements using iterative conebeam reconstruction on the inveon DPET. In 2008 IEEE Nuclear Science Symposium Conference Record, NSS/MIC 2008. 2008. p. 4711-4717. 4774476. (IEEE Nuclear Science Symposium Conference Record). https://doi.org/10.1109/NSSMIC.2008.4774476
Lenox, Mark W. ; Gregor, Jens ; Siegel, Stefan. / Transmission measurements using iterative conebeam reconstruction on the inveon DPET. 2008 IEEE Nuclear Science Symposium Conference Record, NSS/MIC 2008. 2008. pp. 4711-4717 (IEEE Nuclear Science Symposium Conference Record).
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