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首页> 外文期刊>Radiation Protection Dosimetry >OCCUPATIONAL DOSES DURING THE INJECTION OF CONTRAST MEDIA IN PAEDIATRIC CT PROCEDURES
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OCCUPATIONAL DOSES DURING THE INJECTION OF CONTRAST MEDIA IN PAEDIATRIC CT PROCEDURES

机译：儿科CT造影术中注入造影剂的职业剂量

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摘要

The administration of intravenous contrast media by hand or power injection in paediatric computed tomography (CT) procedures is carried out at King Faisal Specialist Hospital and Research Centre for chest, abdomen and torso diagnostic examinations. Some procedures require the CT unit to commence patient scanning during the injection of the last volume of the contrast medium. During the injection, even if the nurse is wearing a 0.5 mm lead equivalent protective apron, the head region and the hand are likely to receive high doses. This study was therefore made to assess the head and extremity doses to the nurses during CT procedures where typical exposure parameters of 200 to 220 mA s and 120 kV_p were used. Thermoluminescence dosemeters were deployed for three consecutive months in two CT rooms. A total of 96 procedures were performed during this period and they were included in this study. Scattered radiation measurements were done at different locations where the nurse may be positioned. Results showed that the average dose to the head region and the hands per paediatric case were 50 μSv and 80 μSv respectively. This study investigated the factors that affect the dose and found them to be the length of stay inside the room, type of CT examination, exposure parameters and location of the nurse.
机译：费萨尔国王专科医院和研究中心对儿童的胸部，腹部和躯干进行诊断检查，以手动或动力注射的方式在儿科计算机断层扫描（CT）中进行静脉注射造影剂的管理。某些程序要求CT单元在注射最后体积的造影剂期间开始扫描患者。在注射过程中，即使护士戴着0.5毫米铅当量的防护围裙，头部和手部也可能接受高剂量。因此，本研究旨在评估使用常规暴露参数200至220 mA s和120 kV_p的CT程序期间护士的头部和四肢剂量。在两个CT室中连续三个月部署了热致发光剂量计。在此期间，总共进行了96道手术，并将其纳入本研究。在可能放置护士的不同位置进行了散射辐射测量。结果表明，每例儿科患者头部和手的平均剂量分别为50μSv和80μSv。这项研究调查了影响剂量的因素，发现它们是房间内的停留时间，CT检查的类型，暴露参数和护士的位置。

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  • 来源
    《Radiation Protection Dosimetry》 |2003年第2期|p.169-172|共4页
  • 作者

    A. N. Al-Haj; A. M. Lobriguito; C. S. Lagarde;

  • 作者单位

    Biomedical Physics Department, MBC 03 King Faisal Specialist Hospital and Research Centre P.O. Box 3354, Riyadh 11211, Saudi Arabia;

  • 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
  • 中图分类 TL72;
  • 关键词

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