Fetal organ dose assessment during pelvic CT examination using Monte Carlo/GATE simulation and pregnancy voxelized phantom Katja
نویسندگان
چکیده
In certain situations where there is a risk of fetal-pelvis disproportion (risk that the baby will not be able to pass through pelvis), pelvic scan examination may prescribed mother at end pregnancy. This assesses dimensions pelvis by measuring various bone diameters. It also provides details information about morphology. Patients are routinely worried unwanted effects on fetus from radiation exposure. Accepting possibility adverse fetal exposure and inability measure directly in vivo [1]. Medical physicists have developed several techniques determine amount reaches fetus. Physicians need understand these methods how numbers they produce relate possible biological this study A 16 helical multi-slice CT scanner was simulated. Full technical specifications were obtained constructor simulated GATE single x-ray beams. Katja voxelized patient phantom, pregnant 24 weeks, scanned with protocol. The code used estimate absorbed effective doses important organs as consequence scanning parameters. purpose use phantom assessed organ dose, dose evaluate related due using Monte Carlo/Gate platform. Fetal 4.8, 6.3 8.2 mSv for 80, 110 130 kV respectively. heart, eye lens, brain 1.61, 1.6 0.8 mGy 80 kV. Since lower than 50 mGy, when exposed teratogenic significant concern [2].
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ژورنال
عنوان ژورنال: E3S web of conferences
سال: 2022
ISSN: ['2555-0403', '2267-1242']
DOI: https://doi.org/10.1051/e3sconf/202235101072