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首页> 外文期刊>Australasian physical & engineering sciences in medicine >Radiation dose in mass screening for gastric cancer with high-concentration barium sulfate compared with moderate-concentration barium sulfate
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Radiation dose in mass screening for gastric cancer with high-concentration barium sulfate compared with moderate-concentration barium sulfate

机译：高浓度硫酸钡与中浓度硫酸钡相比在胃癌大规模筛查中的放射剂量

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摘要

Recently, high-concentration barium sulfate has been developed and is used in many medical facilities. This study compared radiation dose using high-concentration and moderate-concentration barium sulfate. The dose was evaluated with an experimental method using a gastric phantom and with a clinical examination. In the former, the dose and X-ray tube load were measured on the phantom with two concentrations of barium sulfate. In the latter, the fluoroscopic dose-area product (DAP), the radiographic DAP and their sum, the total DAP, were investigated in 150 subjects (112 males, 38 females) treated with both concentrations of barium sulfate. The effective dose was calculated by the software of PCXMC in every case. The results of the experimental evaluation indicated that the effective dose and X-ray tube load were greater with high-concentration barium sulfate than with moderate-concentration barium sulfate (p < 0.05). The results of the clinical evaluation indicated that the fluoroscopic DAP was greater with moderate-concentration barium sulfate than with high-concentration barium sulfate (p < 0.05), but the radiographic DAP was quite the reverse, so the total DAP and effective dose were almost same with both concentrations of barium sulfate. We conclude that high-concentration barium sulfate does not increase radiation dose in mass screening for gastric cancer.
机译：最近，已经开发出高浓度的硫酸钡，并将其用于许多医疗机构。这项研究比较了使用高浓度和中等浓度的硫酸钡的辐射剂量。通过使用胃部幻象的实验方法和临床检查来评估剂量。在前者中，剂量和X射线管负载是在幻影上用两种浓度的硫酸钡测量的。在后者中，在两种硫酸钡浓度下对150名受试者（112例男性，38例女性）进行了荧光透视剂量面积乘积（DAP），射线照相DAP及其总和，即总DAP的研究。在每种情况下均通过PCXMC软件计算有效剂量。实验评估的结果表明，高浓度硫酸钡的有效剂量和X射线管负荷大于中浓度硫酸钡的有效剂量和X射线管负荷（p <0.05）。临床评估结果表明，中等浓度的硫酸钡比高浓度的硫酸钡的荧光透视DAP更大（p <0.05），但射线照相的DAP却相反，因此总DAP和有效剂量几乎相同两种浓度的硫酸钡都相同。我们得出结论，在胃癌的大规模筛查中，高浓度硫酸钡不会增加放射剂量。

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