Radiology:胸部CT检查会殃及乳腺和甲状腺吗?

2018-04-24 shaosai MedSci原创

本研究旨在评价利用基于器官球管电压调节(OBTCM)在胸部CT检查时对甲状腺、乳腺减少辐射剂量的潜在价值,并将结果发表在Radiology上。

本研究旨在评价利用基于器官球管电压调节(OBTCM)在胸部CT检查时对甲状腺、乳腺减少辐射剂量的潜在价值,并将结果发表在Radiology上。

本研究纳入50例女性患者(平均年龄为53.7岁± 17.5;范围20-80岁)并行CT检查,利用蒙特卡罗模拟法,计算患者个体化辐射剂量分布。评价使用OBTCM后潜在减少的剂量。此外,对17/50例患者(平均年龄为43.8岁±17.1;范围为20-69 岁)进行临床OBTCM扫描模拟。分析扫描野内后方器官并评价今后的患癌或死亡的终生归因危险度(LAR)。比较标准CT和OBTCM扫描的图像质量。

结果为,在减小的球管电流区域均为覆盖所有的乳腺组织。在甲状腺和乳腺辐射剂量分布减少18%、9%。然而,在肺、肝脏和肾脏的剂量减少分布为17%、11%、和26%医生。整体来说,在传统和OBTCM扫描中,患癌的LAR间并无统计学差异(P = .06)。OBTCM扫描图像质量提高(P < .002)。

本研究表明,由于受限于较小的球管电压区域,OBTCM扫描在胸部CT检查中对女性乳腺的好处被低估;尽管乳腺接受辐射剂量减少9%,但后方器官会吸收高达26%的射线,导致因辐射诱发的恶性肿瘤发生率间无明显差异。

原始出处:


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    2018-05-01 olivia2008

    钼靶回殃及甲状腺吗?

    0

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    2018-04-27 1209e435m98(暂无昵称)

    学习了.谢谢分享

    0

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    2018-04-26 lq1768
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    2018-04-26 kzlchina
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    2018-04-25 雅文博武

    学习了很多先进的医学知识

    0

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    2018-04-25 小贝熊

    学习学习学习

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