Odjel za računarstvo
Odjel za računarstvo Hrvatske sekcije IEEE poziva Vas na predavanje:
Development and verification of an anthropomorphic phantom of a pregnant woman in the 2nd trimester
koje će održati dr. sc. Vjekoslav Kopačin, Klinički zavod za dijagnostičku i intervencijsku radiologiju, KBC Osijek i Katedra za biofiziku i radiologiju, Medicinski fakultet u Osijeku u utorak 4. veljače 2025. u 12.45 sati, K3-1, Fakultet elektrotehnike, računarstva i informacijskih tehnologija Osijek, Cara Hadrijana 10b, Osijek.
Sažetak predavanja nalazi se u nastavku obavijesti.
Development and verification of an anthropomorphic phantom of a pregnant woman in the 2nd trimester
dr. sc. Vjekoslav Kopačin, KBC Osijek i Medicinski fakultet u Osijeku
https://www.kbco.hr/
Abstract: Experiments on pregnant females are unethical, so Monte Carlo (MC) simulations or measurements in anthropomorphic phantoms are recommended for estimating fetal dose in pregnant patients in radiotherapy. Among the many existing phantoms, there is no commercially available physical phantom representing the entire pregnant woman. The development of a low-cost, physical pregnant female phantom was demonstrated using commercially available materials. The physical phantom is based on the previously published computational phantom - Tena. Three tissue substitution materials (soft tissue, lung and bone tissue substitution) were developed for pouring in 3D modeled and 3D-printed molds. To verify Tena' substitution tissue materials, their radiation properties were assessed and compared to ICRP and ICRU materials using MC simulations in MV radiotherapy beams. Validation of the physical phantom was performed by comparing fetal doses obtained by measurements in the phantom with fetal doses obtained by MC simulations in computational phantom, during an MV photon breast radiotherapy treatment. Materials used for building Tena phantom are matched to ICRU materials using physical density, radiation absorption properties and effective atomic number. When the phantom was used for fetal dose measurements in MV photon breast radiotherapy, measured fetal doses complied with fetal doses calculated using MC simulation within 15%. Physical anthropomorphic phantoms of pregnant female can be manufactured using commercial materials and with low expenses. The files needed for 3D printing are now freely available. This enables further studies and comparison of numerical and physical experiments in diagnostic radiology or radiotherapy.
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