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首页> 外文期刊>Radiation Protection Dosimetry >DOSE EVALUATION OF SELECTIVE COLLIMATION EFFECT IN CEPHALOGRAPHY BY MEASUREMENT AND MONTE CARLO SIMULATION
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DOSE EVALUATION OF SELECTIVE COLLIMATION EFFECT IN CEPHALOGRAPHY BY MEASUREMENT AND MONTE CARLO SIMULATION

机译：测量和蒙特卡罗模拟在脑造影术中选择性选择作用的剂量评估

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摘要

Recently, simulations based on the Monte Carlo code have been increasingly applied for physics phenomena, patient dose and quality assurance of radiation systems. The objective of this study was to use Monte Carlo simulation and measurement to verify dose and dose reduction in cephalography. The collimator was constructed with 3-mm thick lead plate, and attached to the tube head to remove regions of disinterest in the radiation field. A digital phantom patient was constructed to evaluate patient dose. In addition, detectors of pixel size 1×1 cm~2 and 0.1 ×0.1 cm~(-2) were constructed to check collimator location. The effective dose according to International Commission on Radiological Protection 103 was calculated with and without collimation. The effective doses for simulation with and without collimation were 5.09 and 11.32 uSv, respectively. The results of the calculated effective dose show 61.7 % reduction of field area and 55 % of effective dose. The Monte Carlo simulation is a good evaluation tool for patient dose.
机译：近年来，基于蒙特卡洛法则的模拟已越来越多地应用于物理学现象，患者剂量和辐射系统的质量保证。这项研究的目的是使用蒙特卡洛模拟和测量来验证头颅造影的剂量和剂量减少。准直仪由3毫米厚的铅板构成，并连接到管头上，以去除辐射场中不感兴趣的区域。构建数字幻影患者以评估患者剂量。此外，构造了像素大小为1×1 cm〜2和0.1×0.1 cm〜（-2）的检测器，以检查准直仪的位置。根据国际放射防护委员会103的有效剂量是在有或没有准直的情况下计算的。有和没有准直的模拟有效剂量分别为5.09和11.32 uSv。计算出的有效剂量的结果表明视野面积减少了61.7％，有效剂量减少了55％。蒙特卡洛模拟是用于患者剂量的良好评估工具。

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  • 来源
    《Radiation Protection Dosimetry》 |2012年第1期|p.58-64|共7页
  • 作者

    Boram Lee; Gwisoon Shin; Sunjung Kang; Boram Shin; Ilhong Back; Hyok Park; Changseo Park; Jeongwoo Lee; Wonho Lee; Jonghak Choi; Ryeonghwang Park; Youhyun Kim;

  • 作者单位

    Department of Radiologic Science, College of Health Science, Korea University, Seoul, Korea;

    Department of Radiologic Technology, Dongnam Health University, Suwon, Korea;

    Department of Radiologic Science, College of Health Science, Korea University, Seoul, Korea;

    Department of Radiologic Science, College of Health Science, Korea University, Seoul, Korea;

    Department of Radiologic Science, College of Health Science, Korea University, Seoul, Korea;

    Dental Hospital, College of Dentistry, Yonsei University, Seoul, Korea;

    Dental Hospital, College of Dentistry, Yonsei University, Seoul, Korea;

    Department of Radiation Oncology, Konkuk University Medical Center, Seoul, Korea;

    Department of Radiologic Science, College of Health Science, Korea University, Seoul, Korea;

    Department of Radiologic Science, College of Health Science, Korea University, Seoul, Korea;

    Department of Radiation Oncology, Yonsei University Medical Center, Seoul, Korea;

    Department of Radiologic Science, College of Health Science, Korea University, Seoul, Korea;

  • 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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