The tomography beamline at the National Synchrotron Light Source

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We compared the image contrast of a monochromatic CT, Multiple Energy Computed Tomography (MECT), and conventional CT scanner using phantoms. The experimental results indicate that monochromatic CT, with beam energy tuned just above the iodine K-edge, has about a 3 fold advantage in iodine contrast over conventional CT with a 120 kVp beam. Modeling using the same beams at a 3 rad dose and 3 mm slice height on an 18 cm diameter acrylic phantom, the simulations show a noise of 1.2 HU for MECT and 1.9 HU for CCT. Furthermore, despite the Cupping-effect corrections the bone contrast is lower ... continued below

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17 p.

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Dilmanian, F.A.; Wu, X.Y. & Parsons, E.C. December 31, 1996.

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Description

We compared the image contrast of a monochromatic CT, Multiple Energy Computed Tomography (MECT), and conventional CT scanner using phantoms. The experimental results indicate that monochromatic CT, with beam energy tuned just above the iodine K-edge, has about a 3 fold advantage in iodine contrast over conventional CT with a 120 kVp beam. Modeling using the same beams at a 3 rad dose and 3 mm slice height on an 18 cm diameter acrylic phantom, the simulations show a noise of 1.2 HU for MECT and 1.9 HU for CCT. Furthermore, despite the Cupping-effect corrections the bone contrast is lower in CCT and varies by 24 HU moving from the phantom`s center to the edge; this indicates an advantage for MECT in detecting and quantifying lesions differing from surrounding tissue by their mean atomic number.

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17 p.

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OSTI as DE97000979

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  • 5. international conference on applications of physics in medicine and biology, Trieste (Italy), 2-6 Sep 1996

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  • Other: DE97000979
  • Report No.: BNL--63611
  • Report No.: CONF-960955--2
  • Grant Number: AC02-76CH00016
  • Office of Scientific & Technical Information Report Number: 434926
  • Archival Resource Key: ark:/67531/metadc677881

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Office of Scientific & Technical Information Technical Reports

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Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • December 31, 1996

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  • July 25, 2015, 2:20 a.m.

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  • Nov. 9, 2015, 4:24 p.m.

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Dilmanian, F.A.; Wu, X.Y. & Parsons, E.C. The tomography beamline at the National Synchrotron Light Source, article, December 31, 1996; Upton, New York. (digital.library.unt.edu/ark:/67531/metadc677881/: accessed October 17, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.