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Phantom Dose Levels Found at Annual Physics Surveys in a National Mammography Screening Program: Comparison of Doses from Analog and Digital Equipment and from Digital Equipment at Different Points in Time

机译:在国家乳腺钼靶筛查计划的年度物理调查中发现的幻像剂量水平:比较模拟和数字设备以及数字设备在不同时间点的剂量

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摘要

In a national breast screening program using analog mammography systems, the dose to a 45 mm phantom was routinely calculated at annual physics surveys. This test procedure was retained through the gradual transition to digital mammography. Here the phantom doses recorded for 50 analog mammography systems, and 24 (2007) and 35 (2008/2009) digital systems are compared. The phantom doses for the digital systems were found to be statistically significantly lower than the doses for the analog systems. The digital doses were essentially unchanged from 2007 to 2008/2009.
机译:在使用模拟乳腺X线摄影系统的全国乳房筛查计划中,通常在年度物理调查中计算出45毫米幻影的剂量。通过逐步过渡到数字乳腺X线照片,该测试程序得以保留。这里比较了为50个模拟乳房X线照相系统以及24(2007)和35(2008/2009)数字系统记录的幻像剂量。发现数字系统的幻像剂量在统计学上显着低于模拟系统的剂量。从2007年到2008/2009年,数字剂量基本没有变化。

著录项

  • 来源
    《Digital mammography》|2010年|p.100-105|共6页
  • 会议地点 Girona(ES);Girona(ES)
  • 作者单位

    Norwegian Radiation Protection Authority, P.O. Box 55, NO-1332 0steras, Norway;

    Norwegian Radiation Protection Authority, P.O. Box 55, NO-1332 0steras, Norway;

    Norwegian Radiation Protection Authority, P.O. Box 55, NO-1332 0steras, Norway;

    Norwegian Radiation Protection Authority, P.O. Box 55, NO-1332 0steras, Norway ,Oslo University College, Faculty of Health Sciences, P.O. Box 4 St. Olavs plass, NO-0130 Oslo, Norway;

    Norwegian Radiation Protection Authority, P.O. Box 55, NO-1332 0steras, Norway ,University of Oslo, Faculty of Mathematics and Natural Sciences, Department of Physics, P.O. Box 1048 Blindern, NO-0316 Oslo, Norway;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 生物医学工程;
  • 关键词

    quality control; phantom doses;

    机译:质量控制;幻像剂量;

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