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首页> 外文期刊>Radiation Protection Dosimetry >FETAL DOSES TO PREGNANT PATIENTS FROM CT WITH TUBE CURRENT MODULATION CALCULATED USING MONTE CARLO SIMULATIONS AND REALISTIC PHANTOMS
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FETAL DOSES TO PREGNANT PATIENTS FROM CT WITH TUBE CURRENT MODULATION CALCULATED USING MONTE CARLO SIMULATIONS AND REALISTIC PHANTOMS

机译：使用蒙特卡罗模拟和真实幻象计算出的使用管状电流调制的CT孕妇的胎儿剂量

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摘要

To investigate the radiation dose to the fetus using retrospective tube current modulation (TCM) data selected from archived clinical records. This paper describes the calculation of fetal doses using retrospective TCM data and Monte Carlo (MC) simulations. Three TCM schemes were adopted for use with three pregnant patient phantoms. MC simulations were used to model CT scanners, TCM schemes and pregnant patients. Comparisons between organ doses from TCM schemes and those from non-TCM schemes show that these three TCM schemes reduced fetal doses by 14, 18 and 25%, respectively. These organ doses were also compared with those from ImPACT calculation. It is found that the difference between the calculated fetal dose and the ImPACT reported dose is as high as 46 %. This work demonstrates methods to study organ doses from various TCM protocols and potential ways to improve the accuracy of CT dose calculation for pregnant patients.
机译：若要使用回顾性管电流调制（TCM）数据（从已存档的临床记录中选择）来调查胎儿的辐射剂量。本文介绍了使用回顾性中医数据和蒙特卡洛（MC）模拟计算胎儿剂量的方法。三个孕妇体模采用了三种中医方案。 MC模拟用于对CT扫描仪，中医方案和孕妇进行建模。来自中医方案的器官剂量和非中医方案的器官剂量之间的比较表明，这三种中医方案分别将胎儿剂量减少了14％，18％和25％。还将这些器官剂量与ImPACT计算得出的剂量进行了比较。发现计算的胎儿剂量与ImPACT报告的剂量之间的差异高达46％。这项工作演示了研究来自各种TCM方案的器官剂量的方法，以及提高孕妇CT剂量计算准确性的潜在方法。

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  • 来源
    《Radiation Protection Dosimetry》 |2013年第1期|64-72|共9页
  • 作者

    Jianwei Gu; X. George Xu; Peter F. Caracappa; Bob Liu;

  • 作者单位

    Program of Nuclear Engineering and Engineering Physics, Rensselaer Polytechnic Institute, Troy, NY 12180, USA;

    Program of Nuclear Engineering and Engineering Physics, Rensselaer Polytechnic Institute, Troy, NY 12180, USA;

    Program of Nuclear Engineering and Engineering Physics, Rensselaer Polytechnic Institute, Troy, NY 12180, USA;

    Department of Radiology, Massachusetts General Hospital, Boston, MA, USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
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