Pelvis radiography is a frequent X-ray examination. The objective of our study was to determine the minimum dose to be delivered without reducing the quality. We included 60 children having a pelvis X-ray in four groups that were equally represented by weight ranges. A software simulated, for each radiograph, six additional simulated photonic noise images corresponding to 100, 80, 64, 50, 40 and 32% of the initial dose. The 360 radiographs were blindly scored by two radiologists using a semi-quantitative Likert scale. There was no significant difference in scoring between the reference radiograph and simulated radiographs at 80% of the dose in children between 0 and 15 kg and over 35 kg. Inter-observer reproducibility was moderate to very good. Pelvis X-ray doses might be reduced by 20% in children in our institution. Software that produces simulated X-ray with decreasing dose might be a useful tool for an optimization process.

中文翻译：

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使用剂量模拟 X 射线研究软件减少儿童的骨盆 X 光片曝光

骨盆 X 线检查是一种常见的 X 线检查。我们研究的目的是确定要在不降低质量的情况下提供的最小剂量。我们将 60 名接受骨盆 X 光检查的儿童分为四组，体重范围相同。软件为每张射线照片模拟了六个额外的模拟光子噪声图像，对应于初始剂量的 100%、80%、64%、50%、40% 和 32%。360 张射线照片由两名放射科医生使用半定量李克特量表进行盲打分。在 0 至 15 公斤和超过 35 公斤的儿童中，在 80% 的剂量下，参考射线照片和模拟射线照片的评分没有显着差异。观察者间的可重复性中等到非常好。我们机构中儿童的骨盆 X 射线剂量可能会减少 20%。