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PATIENT DOSES FROM SCREEN-FILM AND FULL-FIELD DIGITAL MAMMOGRAPHY IN A POPULATION-BASED SCREENING PROGRAMME

机译:基于人口的筛查程序中的屏幕胶片和全数字乳房X线照片的患者剂量

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摘要

The aim of this study was to compare mean glandular dose (MCD) in all full-field digital mammography (FFDM) and screen film mammography (SFM) systems used in a national mammography screening program. MGD from 31 screening units (7 FFDM and 24 SFM), based on an average of 50 women at each screening unit, representing 12 X-ray models (6 FFDM and 6 SFM) from five different manufacturers were calculated. The MGD was significantly lower for FFDM compared with SFM (craniocaudal): 1.19 versus 1.27 mGy, respectively, mediolateral oblique: 1.33 versus 1.45 mGy, respectively), but not all of the FFDM units provided lower doses than the SFM units. Comparing FFDMs, the photon counting scanning-slit technology provides significantly lower MGDs than direct and indirect conversion digital technology. The choice of target/filter combination influences the MGD, and has to be optimised with regard to breast thickness.
机译:这项研究的目的是比较在国家乳腺X线筛查计划中使用的所有全视野数字乳腺X线摄影(FFDM)和屏幕胶片乳腺X线摄影(SFM)系统中的平均腺体剂量(MCD)。根据每个筛查单位的平均50名妇女,从31个筛查单位(7个FFDM和24 SFM)中计算出MGD,代表来自五个不同制造商的12个X射线模型(6个FFDM和6 SFM)。与SFM(颅尾骨)相比,FFDM的MGD显着更低:分别为1.19和1.27 mGy,中斜肌:分别为1.33和1.45 mGy),但是并非所有FFDM单位都提供比SFM单位更低的剂量。与FFDM相比,光子计数扫描狭缝技术提供的MGD比直接和间接转换数字技术低得多。目标/过滤器组合的选择会影响MGD,因此必须在乳房厚度方面进行优化。

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  • 来源
    《Radiation Protection Dosimetry》 |2012年第1期|p.65-73|共9页
  • 作者单位

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

    Norwegian Radiation Protection Authority, PO Box 55, NO-1332 (O)steras, Norway;

    Faculty of Health Sciences, Oslo University College, PO Box 4 St. Olavs plass, NO-0130 Oslo, Norway;

    Faculty of Health Sciences, Oslo University College, PO Box 4 St. Olavs plass, NO-0130 Oslo, Norway,Cancer Registry of Norway, PO Box 5313 Majorstuen, NO-0304 Oslo, Norway;

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

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  • 原文格式 PDF
  • 正文语种 eng
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