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Radiology:增强US在新生儿动脉转换手术中脑灌注成像中的应用

2022-09-01 shaosai MedSci原创

现阶段,US成像已成为描述婴儿脑血流动态的重要工具。随着微米级的、充满气体的、可生物降解的带壳微泡血管特异性US造影剂的引入,动态造影增强US有能力进行定量的灌注成像。

在过去的几十年里,由于手术技术的进步,先天性心脏病患者的预后有了很大的改善。大动脉转位(TGA)的动脉转换手术(ASO)重新建立肺部和全身循环的连接。对于ASO,修复时的年龄可以预测未来的认知功能情况

现阶段US成像已成为描述婴儿脑血流动态的重要工具。随着微米级的、充满气体的、可生物降解的带壳微泡血管特异性US造影剂的引入,动态造影增强US有能力进行定量的灌注成像。对比增强US具有良好的安全性和药理特征,其清除率与肝脏和肾脏无关。临床上美国食品和药物管理局批准其在儿童患者中静脉注射用于肝脏诊断,这表明可使用造影剂增强US进行术中实时经颅神经影像学研究。

近日,发表Radiology杂志的一项研究使用造影剂增强US(T-CEUS)来定量评估接受ASO的新生儿脑灌注,实现临床对新生儿ASO期间脑血流的动态分析。

本项研究从2018年2月至2020年2月招募了计划进行ASO的TGA新生儿进入研究。在术前、术中和术后(T1-T5)的五个时间点进行测量,每个大脑半球得出11个灌注参数。新生儿的临床特征、心率、平均动脉压、中心静脉压、近红外光谱、血气分析、通气时间、在儿科重症监护室的时间和住院时间都与成像参数相关联。采用方差分析或混合效应模型进行组间比较。

共有12名新生儿(平均胎龄39 6/7周±1/7[SD])被纳入,平均在出生后6.9天±3.4天接受了ASO。与基线值相比,T-CEUS显示平均到峰值的时间(右半球,4.3秒±2.1 vs 17秒±6.4 [P < .001];左半球,4.0秒±2.3 vs 21秒±8.7 [P < .001])和上升时间(右半球,3.5秒±1.7 vs 11秒±5.1 [P = .002];左半球,3.4秒±2.0 vs 22秒±7.8 [P = .004])在所有新生儿低流量心肺分流和低温(T4)期间均更长。新生儿手术时的年龄与ASO期间的T-CEUS参数呈负相关。与年轻的新生儿相比,7天以上的新生儿在洗脱时的平均AUC值较低([87 arbitrary units {au} ± 77] × 102 vs [270 au ± 164] × 102, P = .049]),洗脱时([15 au ± 11] × 103 vs [65 au ± 38] × 103, P = .020])以及洗脱时和洗脱后([24 au ± 18] × 103 vs [92 au ± 53] × 103, P = .023)。


 图片显示动脉转换手术(ASO)期间新生儿灌注变化。(A) 在T4期间发现脑灌注明显减少(心肺分流[CPB]流量低,体温低)。(B, C) T-CEUS时间强度曲线显示,与T4(低CPB流量,低温)相比,T1(手术前)的血流情况有所改变(B),微泡的延迟流入导致时间到峰值(TTP)延长(C),如实线(T1)和红色虚线及箭头(T5,手术结束)所示。成像时间点:T1=手术前;T2=高CPB流量,37℃;T3=高CPB流量,25-28℃;T4=低CPB流量,25-28℃;T5=手术结束

本研究表明揭示了在动脉转换手术(ASO)期间定量的年龄依赖脑灌注模式,提供了对新生儿术中脑循环的显示能力,并支持在大动脉转位的新生儿中提前进行ASO。

原文出处:

Ferdinand Knieling,Robert Cesnjevar,Adrian P Regensburger,et al.Transfontanellar Contrast-enhanced US for Intraoperative Imaging of Cerebral Perfusion during Neonatal Arterial Switch Operation.DOI:10.1148/radiol.212044

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  1. [GetPortalCommentsPageByObjectIdResponse(id=1751383, encodeId=9d081e5138373, content=<a href='/topic/show?id=42988492ec0' target=_blank style='color:#2F92EE;'>#脑灌注#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=73, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=84927, encryptionId=42988492ec0, topicName=脑灌注)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=0a4236283426, createdName=hywen7338, createdTime=Tue Jun 13 06:53:46 CST 2023, time=2023-06-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1988456, encodeId=2a341988456eb, content=<a href='/topic/show?id=7d62668e678' target=_blank style='color:#2F92EE;'>#灌注成像#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=78, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=66876, encryptionId=7d62668e678, topicName=灌注成像)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7460166, createdName=zhang92560, createdTime=Mon Feb 13 18:53:46 CST 2023, time=2023-02-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1242480, encodeId=9ace1242480f4, content=好文章,谢谢分享。, beContent=null, objectType=article, channel=null, level=null, likeNumber=80, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/Q0j4TwGTfTJlfgys76DEiaNtbYo2re3ibjrUPTRibEXRyFwAB4aAGiave842S0FQDf0wAoaH226NiaSoPPDzhndsf1g/132, createdBy=88b489038, createdName=yangchou, createdTime=Thu Sep 01 13:30:34 CST 2022, time=2022-09-01, status=1, ipAttribution=)]
  2. [GetPortalCommentsPageByObjectIdResponse(id=1751383, encodeId=9d081e5138373, content=<a href='/topic/show?id=42988492ec0' target=_blank style='color:#2F92EE;'>#脑灌注#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=73, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=84927, encryptionId=42988492ec0, topicName=脑灌注)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=0a4236283426, createdName=hywen7338, createdTime=Tue Jun 13 06:53:46 CST 2023, time=2023-06-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1988456, encodeId=2a341988456eb, content=<a href='/topic/show?id=7d62668e678' target=_blank style='color:#2F92EE;'>#灌注成像#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=78, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=66876, encryptionId=7d62668e678, topicName=灌注成像)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7460166, createdName=zhang92560, createdTime=Mon Feb 13 18:53:46 CST 2023, time=2023-02-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1242480, encodeId=9ace1242480f4, content=好文章,谢谢分享。, beContent=null, objectType=article, channel=null, level=null, likeNumber=80, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/Q0j4TwGTfTJlfgys76DEiaNtbYo2re3ibjrUPTRibEXRyFwAB4aAGiave842S0FQDf0wAoaH226NiaSoPPDzhndsf1g/132, createdBy=88b489038, createdName=yangchou, createdTime=Thu Sep 01 13:30:34 CST 2022, time=2022-09-01, status=1, ipAttribution=)]
  3. [GetPortalCommentsPageByObjectIdResponse(id=1751383, encodeId=9d081e5138373, content=<a href='/topic/show?id=42988492ec0' target=_blank style='color:#2F92EE;'>#脑灌注#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=73, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=84927, encryptionId=42988492ec0, topicName=脑灌注)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=0a4236283426, createdName=hywen7338, createdTime=Tue Jun 13 06:53:46 CST 2023, time=2023-06-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1988456, encodeId=2a341988456eb, content=<a href='/topic/show?id=7d62668e678' target=_blank style='color:#2F92EE;'>#灌注成像#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=78, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=66876, encryptionId=7d62668e678, topicName=灌注成像)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7460166, createdName=zhang92560, createdTime=Mon Feb 13 18:53:46 CST 2023, time=2023-02-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1242480, encodeId=9ace1242480f4, content=好文章,谢谢分享。, beContent=null, objectType=article, channel=null, level=null, likeNumber=80, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/Q0j4TwGTfTJlfgys76DEiaNtbYo2re3ibjrUPTRibEXRyFwAB4aAGiave842S0FQDf0wAoaH226NiaSoPPDzhndsf1g/132, createdBy=88b489038, createdName=yangchou, createdTime=Thu Sep 01 13:30:34 CST 2022, time=2022-09-01, status=1, ipAttribution=)]
    2022-09-01 yangchou

    好文章,谢谢分享。

    0

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