Katja - the 24^thweek of virtual pregnancy for dosimetric calculations

• Autorzy: Janine Becker , Maria Zankl , Ute Fill , Christoph Hoeschen
• Języki publikacji: EN

Abstrakty

EN

Virtual human models, a.k.a. voxel models, are currently the state of the art in radiation protection for computing organ irradiation doses without difficult or morally unfeasible experiments. They are based on medical image data of human patients and offer a realistic, three dimensional representation of human anatomy.We present our newest voxel model Katja, a virtual woman in the 24th week of pregnancy. Katja integrates two previous voxel models, one obtained from the abdominal MRI scan of a pregnant patient and an already segmented model of a non-pregnant woman. The latter is the ICRP-AF, fitting the reference values for standard height, weight and organ masses given by the Internationals Committee of Radiological Protection (ICRP). The dataset was altered in order to fit the segmented foetus taken from the abdominal MRI scan. The resulting pregnant woman model, Katja, complies with the ICRP reference values for the adult female.

Słowa kluczowe

EN

voxel models; pregnancy; organ dose simulation; ICRP-AF; ICRP reference

• Czasopismo: Polish Journal of Medical Physics And Engineering
• Rocznik: 2008
• Tom: 14
• Numer: 1
• Strony: 13-20

Daty

wydano

2008-01-01

online

2008-12-29

Twórcy

autor

Janine Becker

• Helmholtz Zentrum Munchen, German Research Center for Environmental Health, Neuherberg, Germany

autor

Maria Zankl

• Helmholtz Zentrum Munchen, German Research Center for Environmental Health, Neuherberg, Germany

autor

Ute Fill

• Helmholtz Zentrum Munchen, German Research Center for Environmental Health, Neuherberg, Germany

autor

Christoph Hoeschen

• Helmholtz Zentrum Munchen, German Research Center for Environmental Health, Neuherberg, Germany

Bibliografia

• Cech R, Leitgeb N, Pediaditis M. Fetal exposure to low frequency electric and magnetic fields. Phys Med Biol. 2007; 52(4): 879-888.[PubMed][WoS][Crossref]
• Chen J. Mathematical Models of the Embryo and Fetus for Use in Radiological Protection. Health Phys. 2004; 86(3): 285-295.[PubMed][Crossref]
• Dimbylow P. Development of pregnant female, hybrid voxel-mathematical models and their application to the dosimetry of applied magnetic and electric fields at 50 Hz. Phys Med Biol. 2006; 51 2383-2394.[Crossref]
• Dimbylow P. Development of the female voxel phantom, NAOMI, and its application to calculations of induced current densities and electric fields from applied low frequency magnetic and electric fields. Phys Med Biol. 2005; 50(6): 1047-1070.[PubMed][Crossref]
• Dimbylow PJ. The development of realistic voxel phantoms for electromagnetic field dosimetry. Workshop on Voxel Phantom Development 1-7. 1996.
• Kramer R, Khoury HJ, Vieira JW, Loureiro EC, Lima VJ, Lima FR, Hoff G.All about FAX: a female adult voxel phantom for Monte Carlo calculations in radiation protection dosimetry. Phys Med Biol. 2004; 49: 5203-5216.[Crossref][PubMed]
• Kramer R, Vieira JW, Khoury HJ, Lima FR, Fuelle D. All about MAX: a male adult voxel phantom for Monte Carlo calculations in radiation protection dosimetry. Phys Med Biol. 2003; 48: 1239-1262.[Crossref]
• Lee C, Lee C, Park S-H, Lee J-K. Development of the two Korean adult tomographic computational phantoms for organ dosimetry. Med Phys. 2006; 33(2): 380-390.[Crossref][PubMed]
• Nagaoka T, Watanabe S, Sakurai K, Kunieda E, Watanabe S, Taki M, Yamanaka Y. Development of realistic high-resolution whole-body voxel models of Japanese adult males and females of average height and weight, and application of models to radio-frequency electromagnetic-field dosimetry. Phys Med Biol. 2004; 49: 1-15.[PubMed][Crossref]
• Nipper JC, Williams JL, Bolch WE. Creation of two tomographic voxel models of paediatric patients in the first year of life. Phys Med Biol. 2002; 47(11): 3143-3164.[PubMed][Crossref]
• Petoussi-Henss N, Zankl M, Fill U, Regulla D. The GSF family of voxel phantoms. Phys Med Biol. 2002; 47: 89-106.[Crossref]
• Sato K, Noguchi H, Emoto Y, Koga S, Saito K. Japanese adult male voxel phantom constructed on the basis of CT images. Radiat Prot Dosim. 2007; 123: 337-344.[WoS]
• Shi CY, Xu XG. Development of a 30-week-pregnant female tomographic model from computed tomography (CT) images for Monte Carlo organ dose calculations. Med Phys. 2004; 31(9): 2491-2497.[Crossref][PubMed]
• Stabin MG, Watson E, Cristy M, Ryman JC, Eckerman KF, Davis J, Marshall D, Gehlen K. Mathematical models and specific absorbed fractions of photon energy in the nonpregnant adult female and at the end of each trimester of pregnancy. Oak Ridge (TN): Oak Ridge National Laboratory; 1995.
• Xu GX, Taranenko V, Zhang J, Shi C. A boundary-representation method for designing whole-body radiation dosimetry models: pregnant females at the ends of three gestational periods - RPI-P3, -P6 and -P9, Phys Med Biol. 2007; 52: 7023-7044.[Crossref][WoS][PubMed]
• Xu XG, Chao TC, Bozkurt A. VIP-MAN: An image-based whole-body adult male model constructed from color photographs of the Visible Human Project for multi-particle Monte Carlo calculations. Health Phys. 2000; 78(5): 476-486.[Crossref]
• Zubal IG, Harrell CR, Smith EO, Rattner Z, Gindi G, Hoffer PB. Computerized three-dimensional segmented human anatomy. Med Phys. 1994; 21(2): 299-302.[PubMed]

Identyfikatory

DOI

10.2478/v10013-008-0002-4