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Neuroradiology:利用MRI图像定量评价脑白质损伤的度量手段

2017-09-11 shaosai MedSci原创

在结构磁共振成像(MRI)是定量评价脑白质异常高信号(WMH)是比较困难的。通过不同的软件来评价体积和信号强度变化会有不同的结果,而标准的结果在临床工作中又是非常重要的。本研究旨在评价测量白质(WM)损伤的度量方法的价值,并将结果发表在Neuroradiology上。

在结构磁共振成像(MRI)是定量评价脑白质异常高信号(WMH)是比较困难的。通过不同的软件来评价体积和信号强度变化会有不同的结果,而标准的结果在临床工作中又是非常重要的。本研究旨在评价测量白质(WM)损伤的度量方法的价值,并将结果发表在Neuroradiology上。

本研究共分析了老年人颅脑结构MRI中WMH和表现正常的脑白质(NAWM)体积数据,并由2-4观察者采用盲法分别手动编辑后自动分析的方法进行分析。测算在颅脑FLAIR序列上NAWM和WMH的平均信号强度值。白质损伤的度量方法为经WMH与NAWM对比后进行加权WMH在脑实质所占的比例。利用组织微结构参数和小血管病变负荷和WMH在视觉上的分级进行评价这种新方法: Fazekas评分评价WMH负荷,Prins量表评价WMH变化。

WM损伤和视觉上分级评分间具有相关性(Spearman ρ > =0.74, p < 0.0001),并要比视觉上分级评分与WMH体积间的相关性(Spearman ρ > =0.72, p < 0.0001)要显着。WM损伤度量单位要比WM体积(测量方法间的平均中位数差异分别为3.26% (IQR 2.76%)、5.88% (IQR 5.32%))的可重复性好。即便将基线WM损伤进行方差分析,随访中WM损伤与Prins评分间具有显着性相关(ANCOVA, p < 0.0001),而WMH体积并非如此:Prins与WMH体积变化具有显着相关性(p = 0.0079, increase of 4.42 ml per unit change in total Prins, 95%CI [1.17 7.67]),这并不包括轻微信号、轻度WMH。

本研究表明,该脑白质损伤的度量方法简单实用。在不同的图像处理方法和扫描方案以及对轻重度脑白质损伤的敏感性方面具有较高的价值。

原始出处:

Valdés Hernández MDC, Chappell FM, Mu?oz Maniega S, et al,Metric to quantify white matter damage on brain magnetic resonance images.Neuroradiology. 2017.DOI: 10.1007/s00234-017-1892-1

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    2017-09-15 178200c885m

    方法间的差异可以接受

    0

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  4. [GetPortalCommentsPageByObjectIdResponse(id=1765667, encodeId=522e1e6566767, content=<a href='/topic/show?id=252ae1803a3' target=_blank style='color:#2F92EE;'>#白质#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=67, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=71803, encryptionId=252ae1803a3, topicName=白质)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=778d36, createdName=柳叶一刀, createdTime=Fri Jul 27 05:19:00 CST 2018, time=2018-07-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=244343, encodeId=7f24244343bc, content=方法间的差异可以接受, beContent=null, objectType=article, channel=null, level=null, likeNumber=91, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=134b2150294, createdName=178200c885m, createdTime=Fri Sep 15 16:45:04 CST 2017, time=2017-09-15, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1397319, encodeId=492d139e31922, content=<a href='/topic/show?id=8bee565436d' target=_blank style='color:#2F92EE;'>#损伤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=79, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=56543, encryptionId=8bee565436d, topicName=损伤)], attachment=null, authenticateStatus=null, createdAvatar=https://thirdwx.qlogo.cn/mmopen/vi_32/DYAIOgq83eoNX3lUOlDKGBUEPNwZx0nibmdcFyeibnX4WMhUSCU2REpGRWtSmnT2CCs0dA5waxvJknYDxwtYnIcQ/132, createdBy=294e2500218, createdName=ms3046638856685384, createdTime=Wed Sep 13 13:19:00 CST 2017, time=2017-09-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1444260, encodeId=e803144426009, content=<a href='/topic/show?id=3d9291459d1' target=_blank style='color:#2F92EE;'>#评价#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=63, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=91459, encryptionId=3d9291459d1, topicName=评价)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=1fee5134542, createdName=huagfeg, createdTime=Wed Sep 13 13:19:00 CST 2017, time=2017-09-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=243108, encodeId=8213243108c7, content=学习啦!谢谢分享!, beContent=null, objectType=article, channel=null, level=null, likeNumber=98, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mONcle9pic3zSn0GqHrsfLK1wzJZRTON4gxYUibhUyOypBwMibC4R7SsppicGhz5Ogoy0VVq4CWnqaD2Moeib8RWxI5lOiaVmnxpan/0, createdBy=c53f1730331, createdName=tanxingdoctor, createdTime=Tue Sep 12 07:46:10 CST 2017, time=2017-09-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=243061, encodeId=8579243061ce, content=学习.谢谢分享, beContent=null, objectType=article, channel=null, level=null, likeNumber=84, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/aLGWoFXAyMbIu3qymFOyhb9xDeHojCicsdRdyC3XXdGk2ib9yLypZuHN06WeW4HO8WN0GGrgEfvnTX8gsckof05GHOU5OM4Mvx/0, createdBy=9cee1982656, createdName=执着追梦, createdTime=Tue Sep 12 06:51:32 CST 2017, time=2017-09-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=243041, encodeId=d75124304105, content=学习., beContent=null, objectType=article, channel=null, level=null, likeNumber=93, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/ajNVdqHZLLDcVAydhtcpjiaxLrZD7Eb5YnKPgf7ypGpfyl7FflFyAenvQLbib6T0LPXIhXo9SPNPXYYFFJbEgykztwJ0HQ61I3F9GxIVKWsgQ/0, createdBy=f38d2052407, createdName=周周人, createdTime=Tue Sep 12 06:27:05 CST 2017, time=2017-09-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=243029, encodeId=a135243029a9, content=学习了.谢谢., beContent=null, objectType=article, channel=null, level=null, likeNumber=94, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/xkvRjYnJzzRJ2R0y7VhicibvkjPWHjIMmu4ZpKnE9cWAu4lVicS3uDUCfF4M4JWvrkrYfpb2KehPV0Ee29tPqyPEebBUibiaKhnvD/0, createdBy=f8412001184, createdName=惠映实验室, createdTime=Tue Sep 12 00:34:10 CST 2017, time=2017-09-12, status=1, ipAttribution=)]
    2017-09-13 huagfeg
  5. [GetPortalCommentsPageByObjectIdResponse(id=1765667, encodeId=522e1e6566767, content=<a href='/topic/show?id=252ae1803a3' target=_blank style='color:#2F92EE;'>#白质#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=67, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=71803, encryptionId=252ae1803a3, topicName=白质)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=778d36, createdName=柳叶一刀, createdTime=Fri Jul 27 05:19:00 CST 2018, time=2018-07-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=244343, encodeId=7f24244343bc, content=方法间的差异可以接受, beContent=null, objectType=article, channel=null, level=null, likeNumber=91, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=134b2150294, createdName=178200c885m, createdTime=Fri Sep 15 16:45:04 CST 2017, time=2017-09-15, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1397319, encodeId=492d139e31922, content=<a href='/topic/show?id=8bee565436d' target=_blank style='color:#2F92EE;'>#损伤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=79, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=56543, encryptionId=8bee565436d, topicName=损伤)], attachment=null, authenticateStatus=null, createdAvatar=https://thirdwx.qlogo.cn/mmopen/vi_32/DYAIOgq83eoNX3lUOlDKGBUEPNwZx0nibmdcFyeibnX4WMhUSCU2REpGRWtSmnT2CCs0dA5waxvJknYDxwtYnIcQ/132, createdBy=294e2500218, createdName=ms3046638856685384, createdTime=Wed Sep 13 13:19:00 CST 2017, time=2017-09-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1444260, encodeId=e803144426009, content=<a href='/topic/show?id=3d9291459d1' target=_blank style='color:#2F92EE;'>#评价#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=63, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=91459, encryptionId=3d9291459d1, topicName=评价)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=1fee5134542, createdName=huagfeg, createdTime=Wed Sep 13 13:19:00 CST 2017, time=2017-09-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=243108, encodeId=8213243108c7, content=学习啦!谢谢分享!, beContent=null, objectType=article, channel=null, level=null, likeNumber=98, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mONcle9pic3zSn0GqHrsfLK1wzJZRTON4gxYUibhUyOypBwMibC4R7SsppicGhz5Ogoy0VVq4CWnqaD2Moeib8RWxI5lOiaVmnxpan/0, createdBy=c53f1730331, createdName=tanxingdoctor, createdTime=Tue Sep 12 07:46:10 CST 2017, time=2017-09-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=243061, encodeId=8579243061ce, content=学习.谢谢分享, beContent=null, objectType=article, channel=null, level=null, likeNumber=84, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/aLGWoFXAyMbIu3qymFOyhb9xDeHojCicsdRdyC3XXdGk2ib9yLypZuHN06WeW4HO8WN0GGrgEfvnTX8gsckof05GHOU5OM4Mvx/0, createdBy=9cee1982656, createdName=执着追梦, createdTime=Tue Sep 12 06:51:32 CST 2017, time=2017-09-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=243041, encodeId=d75124304105, content=学习., beContent=null, objectType=article, channel=null, level=null, likeNumber=93, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/ajNVdqHZLLDcVAydhtcpjiaxLrZD7Eb5YnKPgf7ypGpfyl7FflFyAenvQLbib6T0LPXIhXo9SPNPXYYFFJbEgykztwJ0HQ61I3F9GxIVKWsgQ/0, createdBy=f38d2052407, createdName=周周人, createdTime=Tue Sep 12 06:27:05 CST 2017, time=2017-09-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=243029, encodeId=a135243029a9, content=学习了.谢谢., beContent=null, objectType=article, channel=null, level=null, likeNumber=94, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/xkvRjYnJzzRJ2R0y7VhicibvkjPWHjIMmu4ZpKnE9cWAu4lVicS3uDUCfF4M4JWvrkrYfpb2KehPV0Ee29tPqyPEebBUibiaKhnvD/0, createdBy=f8412001184, createdName=惠映实验室, createdTime=Tue Sep 12 00:34:10 CST 2017, time=2017-09-12, status=1, ipAttribution=)]
    2017-09-12 tanxingdoctor

    学习啦!谢谢分享!

    0

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    2017-09-12 执着追梦

    学习.谢谢分享

    0

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    2017-09-12 周周人

    学习.

    0

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    2017-09-12 惠映实验室

    学习了.谢谢.

    0

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