PMID- 35482288
OWN - NLM
STAT- MEDLINE
DCOM- 20220519
LR  - 20220519
IS  - 1742-3406 (Electronic)
IS  - 0144-8420 (Linking)
VI  - 198
IP  - 6
DP  - 2022 May 13
TI  - SIZE-SPECIFIC DOSE ESTIMATES IN FETAL COMPUTED TOMOGRAPHY.
PG  - 339-348
LID - 10.1093/rpd/ncac045 [doi]
AB  - During fetal computed tomography (CT) imaging, because of differences in the 
      pregnancy period and scanning conditions, different doses of radiation are 
      absorbed by the fetus. We propose a correction coefficient for determining the 
      fetal size-specific dose estimate (SSDE) from the CT dose index (CTDI) displayed 
      on the console at tube voltages of 80-135 kVp. The CTDIs corresponding to 
      pregnant women and fetuses were evaluated using a Monte Carlo (MC) simulation, 
      and the ratio of these CTDIs was defined as the Fetus-factor. When the effective 
      diameter of a fetus was approximately 10 cm, the Fetus-factor was 1.0. The 
      estimated pregnant SSDE was multiplied by the Fetus-factor to estimate the fetal 
      SSDE, which was compared with the fetal dose obtained by the MC simulation of the 
      image of the fetal CT examination. The fetal dose could be estimated with an 
      error of 31.5% in fetal examinations conducted using helical CT.
CI  - (c) The Author(s) 2022. Published by Oxford University Press. All rights reserved. 
      For Permissions, please email: journals.permissions@oup.com.
FAU - Kobayashi, Masanao
AU  - Kobayashi M
AUID- ORCID: 0000-0003-0273-0755
AD  - Graduate School of Health Sciences, Fujita Health University, Toyoake, Aichi 
      470-1192, Japan.
FAU - Nishihara, Yusei
AU  - Nishihara Y
AD  - Department of Radiology, Fujita Health University Hospital, Toyoake, Aichi 
      470-1192, Japan.
FAU - Haba, Tomonobu
AU  - Haba T
AD  - Graduate School of Health Sciences, Fujita Health University, Toyoake, Aichi 
      470-1192, Japan.
FAU - Matsunaga, Yuta
AU  - Matsunaga Y
AUID- ORCID: 0000-0002-2356-9385
AD  - Department of Imaging, Nagoya Kyoritsu Hospital, Nagoya 454-0933, Japan.
FAU - Minami, Kazuyuki
AU  - Minami K
AD  - Graduate School of Health Sciences, Fujita Health University, Toyoake, Aichi 
      470-1192, Japan.
FAU - Asada, Yasuki
AU  - Asada Y
AUID- ORCID: 0000-0002-9559-4811
AD  - Graduate School of Health Sciences, Fujita Health University, Toyoake, Aichi 
      470-1192, Japan.
LA  - eng
GR  - JP19K17152/Japan Society for the Promotion of Science/
GR  - Aichi Health Promotion Foundation/
PT  - Journal Article
PL  - England
TA  - Radiat Prot Dosimetry
JT  - Radiation protection dosimetry
JID - 8109958
SB  - IM
MH  - Female
MH  - *Fetus/diagnostic imaging
MH  - Humans
MH  - Monte Carlo Method
MH  - Phantoms, Imaging
MH  - Pregnancy
MH  - Radiation Dosage
MH  - *Tomography, X-Ray Computed
EDAT- 2022/04/29 06:00
MHDA- 2022/05/20 06:00
CRDT- 2022/04/28 11:24
PHST- 2021/10/06 00:00 [received]
PHST- 2022/03/05 00:00 [revised]
PHST- 2022/03/13 00:00 [accepted]
PHST- 2022/04/29 06:00 [pubmed]
PHST- 2022/05/20 06:00 [medline]
PHST- 2022/04/28 11:24 [entrez]
AID - 6575151 [pii]
AID - 10.1093/rpd/ncac045 [doi]
PST - ppublish
SO  - Radiat Prot Dosimetry. 2022 May 13;198(6):339-348. doi: 10.1093/rpd/ncac045.