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Proceedings Paper

Voxel models representing the male and female ICRP reference adult: a dosimetric tool for medical imaging
Author(s): M. Zankl; H. Schlattl; J. Becker; N. Petoussi-Henss; C. Hoeschen
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Paper Abstract

For optimisation in diagnostic medical imaging it is important to consider the relation between diagnostic image quality and patient dose. In the past, schematic representations of the human body were commonly used for dosimetric simulations together with Monte Carlo codes. During the last two decades, voxel models were introduced as an improvement to these body models. Studies performed by various research groups have shown that the more realistic organ topology of voxel models constructed from medical image data of real persons has an impact on calculated doses for external as well as internal exposures. As a consequence of these findings, the ICRP decided to use voxel models for the forthcoming update of organ dose conversion coefficients. These voxel models should be representative of an average population, i.e. they should resemble the ICRP reference anatomical data with respect to their external dimensions and their organ masses. To meet the ICRP requirements, our group at the Helmholtz Zentrum München (formerly known as GSF-National Research Center for Environment and Health) constructed voxel models of a male and female adult, based on the voxel models of two individuals whose body height and weight resembled those of the male and female ICRP reference adult. The organ masses of both models were adjusted to the ICRP reference anatomical data, without spoiling their realistic anatomy. The paper describes the method used for this process and the resulting voxel models.

Paper Details

Date Published: 25 March 2008
PDF: 9 pages
Proc. SPIE 6913, Medical Imaging 2008: Physics of Medical Imaging, 69130X (25 March 2008); doi: 10.1117/12.770266
Show Author Affiliations
M. Zankl, Helmholtz Zentrum München, German Research Ctr. for Environmental Health GmbH (Germany)
H. Schlattl, Helmholtz Zentrum München, German Research Ctr. for Environmental Health GmbH (Germany)
J. Becker, Helmholtz Zentrum München, German Research Ctr. for Environmental Health GmbH (Germany)
N. Petoussi-Henss, Helmholtz Zentrum München, German Research Ctr. for Environmental Health GmbH (Germany)
C. Hoeschen, Helmholtz Zentrum München, German Research Ctr. for Environmental Health GmbH (Germany)


Published in SPIE Proceedings Vol. 6913:
Medical Imaging 2008: Physics of Medical Imaging
Jiang Hsieh; Ehsan Samei, Editor(s)

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