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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

  2. [GetPortalCommentsPageByObjectIdResponse(id=311051, encodeId=46fb31105122, content=钼靶回殃及甲状腺吗?, beContent=null, objectType=article, channel=null, level=null, likeNumber=93, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=229f2343498, createdName=olivia2008, createdTime=Tue May 01 21:57:34 CST 2018, time=2018-05-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=309619, encodeId=1a943096190e, content=学习了.谢谢分享, beContent=null, objectType=article, channel=null, level=null, likeNumber=88, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7c592194322, createdName=1209e435m98(暂无昵称), createdTime=Fri Apr 27 02:30:44 CST 2018, time=2018-04-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1401137, encodeId=417f140113e43, content=<a href='/topic/show?id=e2de8422322' target=_blank style='color:#2F92EE;'>#胸部CT#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=71, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=84223, encryptionId=e2de8422322, topicName=胸部CT)], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/o7RpnhFvZBIzqjGrBgqI0uzRLOMECqe0mUpMfFjUzOgITVyDyibNibupQsIC9cX2wJO3c8HCDxjD21MIQxtbI9Lg/132, createdBy=f64d2300444, createdName=lq1768, createdTime=Thu Apr 26 14:06:00 CST 2018, time=2018-04-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1454938, encodeId=10c11454938f5, content=<a href='/topic/show?id=697c5465d9' target=_blank style='color:#2F92EE;'>#CT检查#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=61, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5465, encryptionId=697c5465d9, topicName=CT检查)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=c07e5619265, createdName=kzlchina, createdTime=Thu Apr 26 14:06:00 CST 2018, time=2018-04-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=309056, encodeId=8e9530905672, content=学习了很多先进的医学知识, beContent=null, objectType=article, channel=null, level=null, likeNumber=82, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cacheapi.medsci.cn/resource/upload/20161027/IMG58114E1818EA51495.jpg, createdBy=4b2c1959822, createdName=雅文博武, createdTime=Wed Apr 25 07:04:41 CST 2018, time=2018-04-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=308987, encodeId=c63a30898ecf, content=学习学习学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=99, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://cdnapi.center.medsci.cn/medsci/head/2018/03/27/6f2d63c799d68129300901eb0e962dd4.jpg, createdBy=ddf12178538, createdName=小贝熊, createdTime=Wed Apr 25 00:21:07 CST 2018, time=2018-04-25, status=1, ipAttribution=)]
    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

    0

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J Pathol:中国人群甲状腺乳头状癌遗传图谱绘就

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World J Surg:研究称切除甲状腺或会增加骨质疏松及骨折风险

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造影剂、胺碘酮与甲状腺那碘事儿

碘是甲状腺激素的重要原料。根据2015年美国甲状腺协会(ATA)声明,正常成年人每天应摄入约0.15 mg碘元素,孕期妇女应该保持在0.22~0.25mg之间,哺乳期妇女则为0.25~0.29 mg。正常成人每日摄入量超过1.1 mg可能会导致甲状腺功能异常。对于妊娠与哺乳期妇女,考虑到过量的碘对胎儿或婴儿甲状腺的影响,碘摄取上限在0.5~1.1 mg之间。

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