Eur Radiol:急性心肌梗死后微血管损伤对原始T1和T2*弛豫值的影响:非对比增强对梗死评估的启示。

2017-08-25 shaosai MedSci原创

在冠状动脉粥样硬化狭窄基础上,由于某些诱因致使冠状动脉粥样斑块破裂,血中的血小板在破裂的斑块表面聚集,形成血块(血栓),突然阻塞冠状动脉管腔,导致心肌缺血坏死,另外,心肌耗氧量剧烈增加或冠状动脉痉挛也可诱发急性心肌梗死(AMI)。原始T1 mapping和延迟钆剂增强(LGE)能够提供AMI后心肌的细微特点。本研究旨在评价在再灌注AMI患者微血管损伤(MVI)和心肌内出血对局部T1和T2*值的影响

在冠状动脉粥样硬化狭窄基础上,由于某些诱因致使冠状动脉粥样斑块破裂,血中的血小板在破裂的斑块表面聚集,形成血块(血栓),突然阻塞冠状动脉管腔,导致心肌缺血坏死,另外,心肌耗氧量剧烈增加或冠状动脉痉挛也可诱发急性心肌梗死(AMI)。原始T1 mapping和延迟钆剂增强(LGE)能够提供AMI后心肌的细微特点。本研究旨在评价在再灌注AMI患者微血管损伤(MVI)和心肌内出血对局部T1和T2*值的影响,并将结果发表在Eur Radiol上。

本研究共纳入了43例再灌注AMI的患者并在4(3-5)天后行心血管MRI(CMR)。扫描序列主要包括MOLLI T1、T2* mapping、STIR,电影成像、LGE。根据LGE定义的感兴趣区来测算T1和T2*值:刚MI核心与MVI区域不匹配是,MI核心周边区域(不包括MVI的任何区域)和远端心肌。

MI核心的平均T1值要高于MI周边和远端心肌。然而,合并MVI的20例(47%)患者的MI核心T1值要低于无MVI的患者(MVI 1048±78ms, 无MVI 1111±89ms, p=0.02)。合并MVI的患者MI核心T2*值要显着低于无MVI的患者(MVI 20 [18-23]ms, no MVI 31 [26-39]ms, p<0.001)。

本研究表明,MVI可能会对MOLLI测量的原始T1值有影响。T2* mapping表明这可能是因为心肌内出血的结果。上述结果对AMI后原始T1值的变化有重要启示。

原始出处:


本文系梅斯医学(MedSci)原创编译整理,转载需授权!

版权声明:
本网站所有内容来源注明为“梅斯医学”或“MedSci原创”的文字、图片和音视频资料,版权均属于梅斯医学所有。非经授权,任何媒体、网站或个人不得转载,授权转载时须注明来源为“梅斯医学”。其它来源的文章系转载文章,或“梅斯号”自媒体发布的文章,仅系出于传递更多信息之目的,本站仅负责审核内容合规,其内容不代表本站立场,本站不负责内容的准确性和版权。如果存在侵权、或不希望被转载的媒体或个人可与我们联系,我们将立即进行删除处理。
在此留言
评论区 (5)
#插入话题
  1. [GetPortalCommentsPageByObjectIdResponse(id=1705702, encodeId=a72b1e0570284, content=<a href='/topic/show?id=8e408966501' target=_blank style='color:#2F92EE;'>#血管损伤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=49, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=89665, encryptionId=8e408966501, topicName=血管损伤)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=84ba31025715, createdName=bbwuyu_013, createdTime=Wed Feb 21 05:44:00 CST 2018, time=2018-02-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=237592, encodeId=1cc223e592e9, content=学习了.谢谢分享!, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/ajNVdqHZLLC1BMzZWdMSPQWuib6BtQGicK8ygGBM6YakpfkRc67soFSuKbZr86enL1KggQZEZbgWSeicJibafmYfQ3AibicIHMwwicmDShfRFvvI38/0, createdBy=272a110164, createdName=laoli, createdTime=Sun Aug 27 07:46:52 CST 2017, time=2017-08-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1365322, encodeId=c7f81365322ef, content=<a href='/topic/show?id=2a2150e76fd' target=_blank style='color:#2F92EE;'>#微血管#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=50776, encryptionId=2a2150e76fd, topicName=微血管)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=669d219, createdName=mgqwxj, createdTime=Sun Aug 27 06:44:00 CST 2017, time=2017-08-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1397302, encodeId=cd86139e3023b, content=<a href='/topic/show?id=8bee565436d' target=_blank style='color:#2F92EE;'>#损伤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=18, 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=Sun Aug 27 06:44:00 CST 2017, time=2017-08-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=237050, encodeId=e12e23e050ab, content=非常好的文章.学习了.很受益, beContent=null, objectType=article, channel=null, level=null, likeNumber=44, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/NUyjXTCJjo7LIiaRZTzJ3SEfiauCzTMPW7YvPPYLNJBXG9oh6Al1icq2VQQkIHWxqXehcicTS62YKJVBhxeth3wggw/0, createdBy=7ce01621306, createdName=天涯183, createdTime=Fri Aug 25 19:53:47 CST 2017, time=2017-08-25, status=1, ipAttribution=)]
  2. [GetPortalCommentsPageByObjectIdResponse(id=1705702, encodeId=a72b1e0570284, content=<a href='/topic/show?id=8e408966501' target=_blank style='color:#2F92EE;'>#血管损伤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=49, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=89665, encryptionId=8e408966501, topicName=血管损伤)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=84ba31025715, createdName=bbwuyu_013, createdTime=Wed Feb 21 05:44:00 CST 2018, time=2018-02-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=237592, encodeId=1cc223e592e9, content=学习了.谢谢分享!, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/ajNVdqHZLLC1BMzZWdMSPQWuib6BtQGicK8ygGBM6YakpfkRc67soFSuKbZr86enL1KggQZEZbgWSeicJibafmYfQ3AibicIHMwwicmDShfRFvvI38/0, createdBy=272a110164, createdName=laoli, createdTime=Sun Aug 27 07:46:52 CST 2017, time=2017-08-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1365322, encodeId=c7f81365322ef, content=<a href='/topic/show?id=2a2150e76fd' target=_blank style='color:#2F92EE;'>#微血管#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=50776, encryptionId=2a2150e76fd, topicName=微血管)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=669d219, createdName=mgqwxj, createdTime=Sun Aug 27 06:44:00 CST 2017, time=2017-08-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1397302, encodeId=cd86139e3023b, content=<a href='/topic/show?id=8bee565436d' target=_blank style='color:#2F92EE;'>#损伤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=18, 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=Sun Aug 27 06:44:00 CST 2017, time=2017-08-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=237050, encodeId=e12e23e050ab, content=非常好的文章.学习了.很受益, beContent=null, objectType=article, channel=null, level=null, likeNumber=44, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/NUyjXTCJjo7LIiaRZTzJ3SEfiauCzTMPW7YvPPYLNJBXG9oh6Al1icq2VQQkIHWxqXehcicTS62YKJVBhxeth3wggw/0, createdBy=7ce01621306, createdName=天涯183, createdTime=Fri Aug 25 19:53:47 CST 2017, time=2017-08-25, status=1, ipAttribution=)]
    2017-08-27 laoli

    学习了.谢谢分享!

    0

  3. [GetPortalCommentsPageByObjectIdResponse(id=1705702, encodeId=a72b1e0570284, content=<a href='/topic/show?id=8e408966501' target=_blank style='color:#2F92EE;'>#血管损伤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=49, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=89665, encryptionId=8e408966501, topicName=血管损伤)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=84ba31025715, createdName=bbwuyu_013, createdTime=Wed Feb 21 05:44:00 CST 2018, time=2018-02-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=237592, encodeId=1cc223e592e9, content=学习了.谢谢分享!, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/ajNVdqHZLLC1BMzZWdMSPQWuib6BtQGicK8ygGBM6YakpfkRc67soFSuKbZr86enL1KggQZEZbgWSeicJibafmYfQ3AibicIHMwwicmDShfRFvvI38/0, createdBy=272a110164, createdName=laoli, createdTime=Sun Aug 27 07:46:52 CST 2017, time=2017-08-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1365322, encodeId=c7f81365322ef, content=<a href='/topic/show?id=2a2150e76fd' target=_blank style='color:#2F92EE;'>#微血管#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=50776, encryptionId=2a2150e76fd, topicName=微血管)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=669d219, createdName=mgqwxj, createdTime=Sun Aug 27 06:44:00 CST 2017, time=2017-08-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1397302, encodeId=cd86139e3023b, content=<a href='/topic/show?id=8bee565436d' target=_blank style='color:#2F92EE;'>#损伤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=18, 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=Sun Aug 27 06:44:00 CST 2017, time=2017-08-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=237050, encodeId=e12e23e050ab, content=非常好的文章.学习了.很受益, beContent=null, objectType=article, channel=null, level=null, likeNumber=44, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/NUyjXTCJjo7LIiaRZTzJ3SEfiauCzTMPW7YvPPYLNJBXG9oh6Al1icq2VQQkIHWxqXehcicTS62YKJVBhxeth3wggw/0, createdBy=7ce01621306, createdName=天涯183, createdTime=Fri Aug 25 19:53:47 CST 2017, time=2017-08-25, status=1, ipAttribution=)]
    2017-08-27 mgqwxj
  4. [GetPortalCommentsPageByObjectIdResponse(id=1705702, encodeId=a72b1e0570284, content=<a href='/topic/show?id=8e408966501' target=_blank style='color:#2F92EE;'>#血管损伤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=49, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=89665, encryptionId=8e408966501, topicName=血管损伤)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=84ba31025715, createdName=bbwuyu_013, createdTime=Wed Feb 21 05:44:00 CST 2018, time=2018-02-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=237592, encodeId=1cc223e592e9, content=学习了.谢谢分享!, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/ajNVdqHZLLC1BMzZWdMSPQWuib6BtQGicK8ygGBM6YakpfkRc67soFSuKbZr86enL1KggQZEZbgWSeicJibafmYfQ3AibicIHMwwicmDShfRFvvI38/0, createdBy=272a110164, createdName=laoli, createdTime=Sun Aug 27 07:46:52 CST 2017, time=2017-08-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1365322, encodeId=c7f81365322ef, content=<a href='/topic/show?id=2a2150e76fd' target=_blank style='color:#2F92EE;'>#微血管#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=50776, encryptionId=2a2150e76fd, topicName=微血管)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=669d219, createdName=mgqwxj, createdTime=Sun Aug 27 06:44:00 CST 2017, time=2017-08-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1397302, encodeId=cd86139e3023b, content=<a href='/topic/show?id=8bee565436d' target=_blank style='color:#2F92EE;'>#损伤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=18, 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=Sun Aug 27 06:44:00 CST 2017, time=2017-08-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=237050, encodeId=e12e23e050ab, content=非常好的文章.学习了.很受益, beContent=null, objectType=article, channel=null, level=null, likeNumber=44, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/NUyjXTCJjo7LIiaRZTzJ3SEfiauCzTMPW7YvPPYLNJBXG9oh6Al1icq2VQQkIHWxqXehcicTS62YKJVBhxeth3wggw/0, createdBy=7ce01621306, createdName=天涯183, createdTime=Fri Aug 25 19:53:47 CST 2017, time=2017-08-25, status=1, ipAttribution=)]
  5. [GetPortalCommentsPageByObjectIdResponse(id=1705702, encodeId=a72b1e0570284, content=<a href='/topic/show?id=8e408966501' target=_blank style='color:#2F92EE;'>#血管损伤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=49, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=89665, encryptionId=8e408966501, topicName=血管损伤)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=84ba31025715, createdName=bbwuyu_013, createdTime=Wed Feb 21 05:44:00 CST 2018, time=2018-02-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=237592, encodeId=1cc223e592e9, content=学习了.谢谢分享!, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/ajNVdqHZLLC1BMzZWdMSPQWuib6BtQGicK8ygGBM6YakpfkRc67soFSuKbZr86enL1KggQZEZbgWSeicJibafmYfQ3AibicIHMwwicmDShfRFvvI38/0, createdBy=272a110164, createdName=laoli, createdTime=Sun Aug 27 07:46:52 CST 2017, time=2017-08-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1365322, encodeId=c7f81365322ef, content=<a href='/topic/show?id=2a2150e76fd' target=_blank style='color:#2F92EE;'>#微血管#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=50776, encryptionId=2a2150e76fd, topicName=微血管)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=669d219, createdName=mgqwxj, createdTime=Sun Aug 27 06:44:00 CST 2017, time=2017-08-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1397302, encodeId=cd86139e3023b, content=<a href='/topic/show?id=8bee565436d' target=_blank style='color:#2F92EE;'>#损伤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=18, 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=Sun Aug 27 06:44:00 CST 2017, time=2017-08-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=237050, encodeId=e12e23e050ab, content=非常好的文章.学习了.很受益, beContent=null, objectType=article, channel=null, level=null, likeNumber=44, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/NUyjXTCJjo7LIiaRZTzJ3SEfiauCzTMPW7YvPPYLNJBXG9oh6Al1icq2VQQkIHWxqXehcicTS62YKJVBhxeth3wggw/0, createdBy=7ce01621306, createdName=天涯183, createdTime=Fri Aug 25 19:53:47 CST 2017, time=2017-08-25, status=1, ipAttribution=)]
    2017-08-25 天涯183

    非常好的文章.学习了.很受益

    0