title: ÐÑÐµÐ½ÐºÐ° Ð´Ð¾Ð·Ñ Ð¾Ð±Ð»ÑÑÐµÐ½Ð¸Ñ Ð¿Ð»Ð¾Ð´Ð° Ð¿ÑÐ¸ ÐºÐ¾Ð¼Ð¿ÑÑÑÐµÑÐ½Ð¾Ð¹ ÑÐ¾Ð¼Ð¾Ð³ÑÐ°ÑÐ¸Ð¸ (ÐÐ¢) Ð½Ð° Ð¿ÑÐ¸Ð¼ÐµÑÐµ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ð¾ÑÐ´ÐµÐ»Ð° Ð³ÑÑÐ´Ð½Ð¾Ð¹ ÐºÐ»ÐµÑÐºÐ¸ (ÐÐÐ)
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: Estimating fetal radiation risk from CT during pregnancy on the example of chest organs.
Creators: name: ÐÐ¸Ð²ÐµÐ½Ñ, ÐÐ¾Ð»Ð¸Ð½Ð°
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2021
Subjects: Ð ÐµÐ½ÑÐ³ÐµÐ½Ð¾Ð³ÑÐ°ÑÐ¸Ñ
ÐÐ¾Ð¼Ð¿ÑÑÑÐµÑÐ½Ð°Ñ ÑÐ¾Ð¼Ð¾Ð³ÑÐ°ÑÐ¸Ñ
Ð³ÑÑÐ´Ð½Ð°Ñ ÐºÐ»ÐµÑÐºÐ°
Ð²Ð½ÑÑÑÐ¸ÑÑÑÐ¾Ð±Ð½Ð¾Ðµ Ð¾Ð±Ð»ÑÑÐµÐ½Ð¸Ðµ
Ð´Ð¾Ð·Ð° Ð¾Ð±Ð»ÑÑÐµÐ½Ð¸Ñ Ð½Ð° Ð¿Ð»Ð¾Ð´
Ð¾ÑÐ³Ð°Ð½Ð½ÑÐµ Ð´Ð¾Ð·Ñ Ð½Ð° Ð¿Ð»Ð¾Ð´
ÐºÐ°Ð»ÑÐºÑÐ»ÑÑÐ¾Ñ FetalDose
ÐºÐ¾Ð²Ð¸Ð´-19

description: Ð Ð°Ð±Ð¾ÑÐ° Ð¿Ð¾ÑÐ²ÑÑÐµÐ½Ð° Ð¸Ð·ÑÑÐµÐ½Ð¸Ñ Ð¼ÐµÑÐ¾Ð´Ð¾Ð² ÑÐ°ÑÑÐµÑÐ° Ð¸ Ð¾ÑÐµÐ½ÐºÐµ Ð´Ð¾Ð· Ð¾Ð±Ð»ÑÑÐµÐ½Ð¸Ñ Ð¿Ð»Ð¾Ð´Ð° Ð¿ÑÐ¸ ÐºÐ¾Ð¼Ð¿ÑÑÑÐµÑÐ½Ð¾Ð¹ ÑÐ¾Ð¼Ð¾Ð³ÑÐ°ÑÐ¸Ð¸ Ð¾ÑÐ´ÐµÐ»Ð° Ð³ÑÑÐ´Ð½Ð¾Ð¹ ÐºÐ»ÐµÑÐºÐ¸ Ð½Ð° Ð¾ÑÐ½Ð¾Ð²Ðµ Ð¿ÑÐ¾ÑÐ¾ÐºÐ¾Ð»Ð¾Ð² ÑÐºÐ°Ð½Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð¤ÐÐÐ£ Â«ÐÐÐÐ¦ Ð¸Ð¼. ÐÐ»Ð¼Ð°Ð·Ð¾Ð²Ð°Â» ÐÐ¸Ð½Ð·Ð´ÑÐ°Ð²Ð° Ð Ð¾ÑÑÐ¸Ð¸ Ð² Ð¿ÐµÑÐ¸Ð¾Ð´ Ð¿Ð°Ð½Ð´ÐµÐ¼Ð¸Ð¸ COVID-19. Ð ÑÐ°Ð±Ð¾ÑÐµ ÑÑÐ°Ð²Ð½Ð¸Ð²Ð°ÑÑÑÑ Ð¾ÑÐµÐ½ÐºÐ¸ Ð´Ð¾Ð·, Ð¿Ð¾Ð»ÑÑÐµÐ½Ð½ÑÐµ Ð¸Ð· ÑÐ°Ð½Ð½Ð¸Ñ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ð¹ Ð¸ Ð´Ð²ÑÐ¼Ñ Ð¼ÐµÑÐ¾Ð´Ð°Ð¼Ð¸: FetalDose â Ð¾Ð½Ð»Ð°Ð¹Ð½-Ð¸Ð½ÑÑÑÑÐ¼ÐµÐ½Ñ Ð´Ð»Ñ Ð±ÑÑÑÑÐ¾Ð³Ð¾ ÑÐ°ÑÑÐµÑÐ° Ð´Ð¾Ð·Ñ Ð¿Ð»Ð¾Ð´Ð° Ñ Ð²Ð¾Ð·Ð¼Ð¾Ð¶Ð½Ð¾ÑÑÑÑ Ð²ÑÐ±Ð¾ÑÐ° ÑÑÐ¸Ð¼ÐµÑÑÑÐ°, INCICT3.0 â ÑÐ¿ÐµÑÐ¸Ð°Ð»Ð¸Ð·Ð¸ÑÐ¾Ð²Ð°Ð½Ð½Ð¾Ðµ Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ð½Ð¾Ðµ Ð¾Ð±ÐµÑÐ¿ÐµÑÐµÐ½Ð¸Ðµ, ÐºÐ¾ÑÐ¾ÑÐ¾Ðµ Ð¿Ð¾Ð·Ð²Ð¾Ð»ÑÐµÑ Ð¾Ð¿ÑÐµÐ´ÐµÐ»Ð¸ÑÑ Ð¾ÑÐ³Ð°Ð½Ð½ÑÐµ Ð´Ð¾Ð·Ñ Ñ Ð¿Ð»Ð¾Ð´Ð° Ð¸ Ð¼Ð°ÑÐµÑÐ¸ Ð½Ð° ÑÐ°Ð·Ð½ÑÑ Ð½ÐµÐ´ÐµÐ»ÑÑ Ð±ÐµÑÐµÐ¼ÐµÐ½Ð½Ð¾ÑÑÐ¸. Ð ÐµÐ·ÑÐ»ÑÑÐ°ÑÑ Ð¿Ð¾ÐºÐ°Ð·ÑÐ²Ð°ÑÑ, ÑÑÐ¾ Ð´Ð¾Ð·Ñ, Ð¿Ð¾Ð³Ð»Ð¾ÑÐµÐ½Ð½ÑÐµ Ð² Ð¿Ð»Ð¾Ð´Ðµ, Ð¿Ð¾Ð»ÑÑÐµÐ½Ð½ÑÐµ Ñ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸ÐµÐ¼ ÐºÐ°Ð»ÑÐºÑÐ»ÑÑÐ¾ÑÐ° FetalDose, Ð¿ÑÐ¾Ð´ÐµÐ¼Ð¾Ð½ÑÑÑÐ¸ÑÐ¾Ð²Ð°Ð»Ð¸, ÑÑÐ¾ Ð¿ÑÐ¸ Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½Ð¸Ð¸ ÐÐ¢ ÐÐÐ Ð´Ð¾Ð·Ð° Ð½Ð° Ð¿Ð»Ð¾Ð´ ÑÐ°ÑÑÑÑ ÑÐ¾ ÑÑÐ¾ÐºÐ¾Ð¼ Ð±ÐµÑÐµÐ¼ÐµÐ½Ð½Ð¾ÑÑÐ¸ Ð¾Ñ 0,05-0,29 Ð¼ÐÑ Ð² Ð¿ÐµÑÐ²Ð¾Ð¼ ÑÑÐ¸Ð¼ÐµÑÑÑÐµ Ð´Ð¾ 0,30-1,58 Ð¼ÐÑ Ð² ÑÑÐµÑÑÐµÐ¼, Ð² Ð·Ð°Ð²Ð¸ÑÐ¸Ð¼Ð¾ÑÑÐ¸ Ð¾Ñ Ð°Ð¿Ð¿Ð°ÑÐ°ÑÐ° Ð¸ Ð¿ÑÐ¾ÑÐ¾ÐºÐ¾Ð»Ð° ÑÐºÐ°Ð½Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ. ÐÐ¾ ÑÐ°ÑÑÐµÑÐ°Ð¼ Ð² NCICT Ð±ÑÐ»Ð¾ Ð¿Ð¾Ð»ÑÑÐµÐ½Ð¾, ÑÑÐ¾ Ð½Ð°Ð¸Ð±Ð¾Ð»ÑÑÑÑ Ð´Ð¾Ð·Ñ Ñ Ð¿Ð»Ð¾Ð´Ð° Ð¿Ð¾Ð»ÑÑÐ°ÑÑ Ð³Ð¾Ð½Ð°Ð´Ñ (Ð´Ð¾ 6,8 Ð¼ÐÑ), Ð¿ÑÐ¾ÑÑÐ°ÑÐ°/Ð¼Ð°ÑÐºÐ° (Ð´Ð¾ 5,6 Ð¼ÐÑ), Ð¼Ð¾ÑÐµÐ²Ð¾Ð¹ Ð¿ÑÐ·ÑÑÑ (Ð´Ð¾ 4,6 Ð¼ÐÑ), ÐºÐ¸ÑÐµÑÐ½Ð¸Ðº (Ð´Ð¾ 3,4 Ð¼ÐÑ) Ð¸ ÐºÐ¾ÑÑÐ½ÑÐ¹ Ð¼Ð¾Ð·Ð³ (Ð´Ð¾ 3,3 Ð¼ÐÑ) Ð¿ÑÐ¸ Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½Ð¸Ð¸ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ð½Ð° Ð¿Ð¾ÑÐ»ÐµÐ´Ð½Ð¸Ñ Ð½ÐµÐ´ÐµÐ»ÑÑ Ð±ÐµÑÐµÐ¼ÐµÐ½Ð½Ð¾ÑÑÐ¸. ÐÑÐ¸ ÑÑÐ¾Ð¼ Ð´Ð¾Ð·Ð°, Ð¿Ð¾Ð³Ð»Ð¾ÑÐµÐ½Ð½Ð°Ñ Ð² Ð¼Ð°ÑÐºÐµ Ð¼Ð°ÑÐµÑÐ¸, Ð¸ ÑÑÐ¼Ð¼Ð°ÑÐ½Ð°Ñ ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð°Ñ Ð´Ð¾Ð·Ð° Ñ Ð¿Ð»Ð¾Ð´Ð° Ð¿ÑÐ¸ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ð¸ Ð½Ð° Ð¿ÐµÑÐ²Ð¾Ð¼ Ð¸ ÑÑÐµÑÑÐµÐ¼ ÑÑÐ¸Ð¼ÐµÑÑÑÐ°Ñ Ð¿Ð¾ ÑÐ°ÑÑÐµÑÐ°Ð¼ Ð² NCICT Ð±ÑÐ»Ð° ÑÐ¾Ð¿Ð¾ÑÑÐ°Ð²Ð¸Ð¼Ð° Ñ Ð´Ð¾Ð·Ð°Ð¼Ð¸, Ð¿Ð¾Ð»ÑÑÐµÐ½Ð½ÑÐ¼Ð¸ Ñ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸ÐµÐ¼ FetalDose, Ð¿ÑÐ¸ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ð¸ Ð²Ð¾ Ð²ÑÐ¾ÑÐ¾Ð¼ ÑÑÐ¸Ð¼ÐµÑÑÑÐµ â Ð² 2-2,5 ÑÐ°Ð·Ð° Ð½Ð¸Ð¶Ðµ. Ð¢Ð°ÐºÐ¶Ðµ Ð²ÑÑÑÐ½Ð¸Ð»Ð¾ÑÑ, ÑÑÐ¾ Ð¿Ð¾Ð»ÑÑÐµÐ½Ð½ÑÐµ Ð´Ð¾Ð·Ñ Ð²Ð¿Ð¸ÑÑÐ²Ð°ÑÑÑÑ Ð² Ð´Ð¸Ð°Ð¿Ð°Ð·Ð¾Ð½ Ð´Ð¾Ð· ÑÐ°Ð½Ð½Ð¸Ñ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ð¹ Ð¸ Ð½Ðµ Ð¿ÑÐ¸Ð²ÐµÐ´ÑÑ Ðº Ð¿Ð°Ð³ÑÐ±Ð½ÑÐ¼ Ð¿Ð¾ÑÐ»ÐµÐ´ÑÑÐ²Ð¸ÑÐ¼. ÐÐ¾Ð»ÑÑÐµÐ½Ð½ÑÐµ ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÑ Ð¼Ð¾Ð¶Ð½Ð¾ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°ÑÑ Ð² Ð¿ÑÐ°ÐºÑÐ¸ÑÐµÑÐºÐ¸Ñ ÑÐµÐ»ÑÑ.
description: The work is devoted to the studying of calculation methods and estimation of fetal dose for CT of the chest based on scanning protocols of Almazov National Medical Research Center during the COVID-19 pandemic. The work compares dose estimates obtained from early studies and two methods were used NCICT 3.0 software to determine organ doses of the fetus and mother and FetalDose calculator for fetal absorbed dose calculation. The absorbed doses in the fetus calculated by the FetalDose increases with gestational age from 0.05-0.29 mGy in the first trimester to 0.30 -1.58 mGy in the third trimester, depending on the CT unit and the scanning protocol. According to calculations in NCICT the highest absorbed doses in fetal organs were estimated in gonads (up to 6.8 mGy), prostate/uterus (up to 5.6 mGy), bladder (up to 4.6 mGy), intestines (up to 3.4 mGy) and bone marrow (up to 3.3 mGy) for the CT examinations in the last weeks of pregnancy. The dose absorbed in the mother's uterus and the total effective dose in the fetus for the CT examinations the first and third trimesters according NCICT were comparable to the doses estimated using FetalDose, for the second trimester doses estimated by NCICT were 2-2.5 times lower. It was also found that the doses obtained fit into the dose range of early studies and will not lead to detrimental consequences. The results can be used for practical purposes.