Neuroradiology:比较3代双源CT设备79kVp与100kVp条件下头颈部血管成像的差异。

2017-09-17 shaosai MedSci原创

本研究旨在评价70 kVp和25 mL对比剂进行头颈部计算机断层血管造影(CTA)的图像质量并评估其显示血管狭窄的价值,并将结果发表在Neuroradiology上。

本研究旨在评价70 kVp和25 mL对比剂进行头颈部计算机断层血管造影(CTA)的图像质量并评估其显示血管狭窄的价值,并将结果发表在Neuroradiology上。

本研究共纳入了50患者并随机分为两组:A组(n = 25),70 kVp、25 mL CM,B组(n = 25),100 kVp with 40 mL CM。测量每个受试者腋下、颈部和颅脑血管的CT值、噪声、信号噪声比(SNR)和对比噪声比(CNR)。主观评价腋下和颅脑血管的图像质量。对于进行数字剪影血管造影(DSA)的患者,以DSA为参考标准,评价CTA的诊断准确率。

A组腋下、颈部和颅脑动脉的图像SNR要高于B组(P < 0.05)。A组腋下、颈部的图像CNR也要高于B组(P < 0.05)。两组间主观图像质量并没有显着性差异(P > 0.05)。对于≥?50%的血管狭窄,A、B两组的诊断准确率分别为94.0% (156/166) 、97.1% (134/138)。在A组,诊断颅内血管的准确率要低于颅外动脉狭窄的诊断准确率。A组的放射剂量要比B组降低56%。

本研究表明利用70 kVp、25 mL CM的头颈部CTA能够获得满足诊断的图像质量,并且放射剂量减低。与100-kVp、40-mL CM扫描条件下相比,在检出动脉狭窄时具有较高的准确率。

原始出处:

Chen Y, Zhang X, Xue H , et al,Head and neck angiography at 70 kVp with a third-generation dual-source CT system in patients: comparison with 100 kVp. Neuroradiology。2017.DOI: 10.1007/s00234-017-1901-4

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    2018-04-08 hb2008ye
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    2017-09-19 wshxjq
  4. 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createdAvatar=https://wx.qlogo.cn/mmopen/jW482SpianMayicTRbRZ5RzUn81b5CF5ibVPib8jWI92iciaxmqGHlwruOnK4SVZykd4iahqo1hicklIibyZoxm55X7EM8BW9eX1h1hQ2/0, createdBy=8aa81937526, createdName=李东泽, createdTime=Mon Sep 18 08:13:19 CST 2017, time=2017-09-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=245239, encodeId=8bf824523958, content=本研究表明利用70kVp.25mLCM的头颈部CTA能够获得满足诊断的图像质量.并且放射剂量减低.与100-kVp.40-mLCM扫描条件下相比.在检出动脉狭窄时具有较高的准确率., beContent=null, objectType=article, channel=null, level=null, likeNumber=42, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/NUyjXTCJjo7cJ6ejWUr2nIia8qOvAKNdLHr32Df6G8iaoaOx6pHaoiacwp26DaslxZHCGbibZhhCGven4rvmWP60GahtzgFjgCjR/0, createdBy=6b111703011, createdName=有备才能无患, createdTime=Mon Sep 18 07:59:03 CST 2017, time=2017-09-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=245203, encodeId=eee224520399, content=学了.........., 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  5. 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createdAvatar=https://wx.qlogo.cn/mmopen/jW482SpianMayicTRbRZ5RzUn81b5CF5ibVPib8jWI92iciaxmqGHlwruOnK4SVZykd4iahqo1hicklIibyZoxm55X7EM8BW9eX1h1hQ2/0, createdBy=8aa81937526, createdName=李东泽, createdTime=Mon Sep 18 08:13:19 CST 2017, time=2017-09-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=245239, encodeId=8bf824523958, content=本研究表明利用70kVp.25mLCM的头颈部CTA能够获得满足诊断的图像质量.并且放射剂量减低.与100-kVp.40-mLCM扫描条件下相比.在检出动脉狭窄时具有较高的准确率., beContent=null, objectType=article, channel=null, level=null, likeNumber=42, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/NUyjXTCJjo7cJ6ejWUr2nIia8qOvAKNdLHr32Df6G8iaoaOx6pHaoiacwp26DaslxZHCGbibZhhCGven4rvmWP60GahtzgFjgCjR/0, createdBy=6b111703011, createdName=有备才能无患, createdTime=Mon Sep 18 07:59:03 CST 2017, time=2017-09-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=245203, encodeId=eee224520399, content=学了.........., beContent=null, objectType=article, channel=null, level=null, likeNumber=20, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mStl88fu4Neru1qt53a14aACuSzg3TZhkTcsPYVibyHibhTZ5L4k9qIBWiaej4lgomIsGptf8N16E4mTuIq2DVdJXjPjmwZKrLib/0, createdBy=5a0f2055853, createdName=135****7952平儿, createdTime=Mon Sep 18 06:47:57 CST 2017, time=2017-09-18, status=1, ipAttribution=)]
    2017-09-18 131****2916

    不错的文章值得学习

    0

  6. 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createdAvatar=https://wx.qlogo.cn/mmopen/jW482SpianMayicTRbRZ5RzUn81b5CF5ibVPib8jWI92iciaxmqGHlwruOnK4SVZykd4iahqo1hicklIibyZoxm55X7EM8BW9eX1h1hQ2/0, createdBy=8aa81937526, createdName=李东泽, createdTime=Mon Sep 18 08:13:19 CST 2017, time=2017-09-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=245239, encodeId=8bf824523958, content=本研究表明利用70kVp.25mLCM的头颈部CTA能够获得满足诊断的图像质量.并且放射剂量减低.与100-kVp.40-mLCM扫描条件下相比.在检出动脉狭窄时具有较高的准确率., beContent=null, objectType=article, channel=null, level=null, likeNumber=42, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/NUyjXTCJjo7cJ6ejWUr2nIia8qOvAKNdLHr32Df6G8iaoaOx6pHaoiacwp26DaslxZHCGbibZhhCGven4rvmWP60GahtzgFjgCjR/0, createdBy=6b111703011, createdName=有备才能无患, createdTime=Mon Sep 18 07:59:03 CST 2017, time=2017-09-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=245203, encodeId=eee224520399, content=学了.........., beContent=null, objectType=article, channel=null, level=null, likeNumber=20, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mStl88fu4Neru1qt53a14aACuSzg3TZhkTcsPYVibyHibhTZ5L4k9qIBWiaej4lgomIsGptf8N16E4mTuIq2DVdJXjPjmwZKrLib/0, createdBy=5a0f2055853, createdName=135****7952平儿, createdTime=Mon Sep 18 06:47:57 CST 2017, time=2017-09-18, status=1, ipAttribution=)]
    2017-09-18 139****9672

    学习了......

    0

  7. 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encryptionId=124d10065220, topicName=颈部)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=c46a17776631, createdName=木头人519, createdTime=Tue Sep 19 13:33:00 CST 2017, time=2017-09-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=245450, encodeId=7fac245450b4, content=不错的文章值得学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=55, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=04f22055142, createdName=131****2916, createdTime=Mon Sep 18 22:54:19 CST 2017, time=2017-09-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=245354, encodeId=2a03245354e9, content=学习了......, beContent=null, objectType=article, channel=null, level=null, likeNumber=52, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, 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createdAvatar=https://wx.qlogo.cn/mmopen/jW482SpianMayicTRbRZ5RzUn81b5CF5ibVPib8jWI92iciaxmqGHlwruOnK4SVZykd4iahqo1hicklIibyZoxm55X7EM8BW9eX1h1hQ2/0, createdBy=8aa81937526, createdName=李东泽, createdTime=Mon Sep 18 08:13:19 CST 2017, time=2017-09-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=245239, encodeId=8bf824523958, content=本研究表明利用70kVp.25mLCM的头颈部CTA能够获得满足诊断的图像质量.并且放射剂量减低.与100-kVp.40-mLCM扫描条件下相比.在检出动脉狭窄时具有较高的准确率., beContent=null, objectType=article, channel=null, level=null, likeNumber=42, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/NUyjXTCJjo7cJ6ejWUr2nIia8qOvAKNdLHr32Df6G8iaoaOx6pHaoiacwp26DaslxZHCGbibZhhCGven4rvmWP60GahtzgFjgCjR/0, createdBy=6b111703011, createdName=有备才能无患, createdTime=Mon Sep 18 07:59:03 CST 2017, time=2017-09-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=245203, encodeId=eee224520399, content=学了.........., beContent=null, objectType=article, channel=null, level=null, likeNumber=20, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mStl88fu4Neru1qt53a14aACuSzg3TZhkTcsPYVibyHibhTZ5L4k9qIBWiaej4lgomIsGptf8N16E4mTuIq2DVdJXjPjmwZKrLib/0, createdBy=5a0f2055853, createdName=135****7952平儿, createdTime=Mon Sep 18 06:47:57 CST 2017, time=2017-09-18, status=1, ipAttribution=)]
    2017-09-18 1e1ff052m13(暂无匿称)

    学习了.谢谢分享

    0

  8. [GetPortalCommentsPageByObjectIdResponse(id=1954659, encodeId=8f901954659f9, content=<a href='/topic/show?id=cc888965616' target=_blank style='color:#2F92EE;'>#血管成像#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=31, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=89656, encryptionId=cc888965616, topicName=血管成像)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=55683, createdName=仁医06, createdTime=Fri Feb 02 07:33:00 CST 2018, time=2018-02-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2046093, encodeId=0ddd204609392, content=<a href='/topic/show?id=e57f3e501a4' target=_blank style='color:#2F92EE;'>#双源CT#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=29, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=37501, encryptionId=e57f3e501a4, topicName=双源CT)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4c37265, 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createdAvatar=https://wx.qlogo.cn/mmopen/jW482SpianMayicTRbRZ5RzUn81b5CF5ibVPib8jWI92iciaxmqGHlwruOnK4SVZykd4iahqo1hicklIibyZoxm55X7EM8BW9eX1h1hQ2/0, createdBy=8aa81937526, createdName=李东泽, createdTime=Mon Sep 18 08:13:19 CST 2017, time=2017-09-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=245239, encodeId=8bf824523958, content=本研究表明利用70kVp.25mLCM的头颈部CTA能够获得满足诊断的图像质量.并且放射剂量减低.与100-kVp.40-mLCM扫描条件下相比.在检出动脉狭窄时具有较高的准确率., beContent=null, objectType=article, channel=null, level=null, likeNumber=42, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/NUyjXTCJjo7cJ6ejWUr2nIia8qOvAKNdLHr32Df6G8iaoaOx6pHaoiacwp26DaslxZHCGbibZhhCGven4rvmWP60GahtzgFjgCjR/0, createdBy=6b111703011, createdName=有备才能无患, createdTime=Mon Sep 18 07:59:03 CST 2017, time=2017-09-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=245203, encodeId=eee224520399, content=学了.........., beContent=null, objectType=article, channel=null, level=null, likeNumber=20, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mStl88fu4Neru1qt53a14aACuSzg3TZhkTcsPYVibyHibhTZ5L4k9qIBWiaej4lgomIsGptf8N16E4mTuIq2DVdJXjPjmwZKrLib/0, createdBy=5a0f2055853, createdName=135****7952平儿, createdTime=Mon Sep 18 06:47:57 CST 2017, time=2017-09-18, status=1, ipAttribution=)]
    2017-09-18 李东泽

    很好.学习了.很有帮助.

    0

  9. 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createdAvatar=https://wx.qlogo.cn/mmopen/jW482SpianMayicTRbRZ5RzUn81b5CF5ibVPib8jWI92iciaxmqGHlwruOnK4SVZykd4iahqo1hicklIibyZoxm55X7EM8BW9eX1h1hQ2/0, createdBy=8aa81937526, createdName=李东泽, createdTime=Mon Sep 18 08:13:19 CST 2017, time=2017-09-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=245239, encodeId=8bf824523958, content=本研究表明利用70kVp.25mLCM的头颈部CTA能够获得满足诊断的图像质量.并且放射剂量减低.与100-kVp.40-mLCM扫描条件下相比.在检出动脉狭窄时具有较高的准确率., beContent=null, objectType=article, channel=null, level=null, likeNumber=42, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/NUyjXTCJjo7cJ6ejWUr2nIia8qOvAKNdLHr32Df6G8iaoaOx6pHaoiacwp26DaslxZHCGbibZhhCGven4rvmWP60GahtzgFjgCjR/0, createdBy=6b111703011, createdName=有备才能无患, createdTime=Mon Sep 18 07:59:03 CST 2017, time=2017-09-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=245203, encodeId=eee224520399, content=学了.........., beContent=null, objectType=article, channel=null, level=null, likeNumber=20, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mStl88fu4Neru1qt53a14aACuSzg3TZhkTcsPYVibyHibhTZ5L4k9qIBWiaej4lgomIsGptf8N16E4mTuIq2DVdJXjPjmwZKrLib/0, createdBy=5a0f2055853, createdName=135****7952平儿, createdTime=Mon Sep 18 06:47:57 CST 2017, time=2017-09-18, status=1, ipAttribution=)]
    2017-09-18 有备才能无患

    本研究表明利用70kVp.25mLCM的头颈部CTA能够获得满足诊断的图像质量.并且放射剂量减低.与100-kVp.40-mLCM扫描条件下相比.在检出动脉狭窄时具有较高的准确率.

    0

  10. 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createdAvatar=https://cdnapi.center.medsci.cn/medsci/head/2017/07/25/50686bfef7f9754dfa5d0ccec059c9de.jpg, createdBy=8d992083353, createdName=139****9672, createdTime=Mon Sep 18 16:36:21 CST 2017, time=2017-09-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=245272, encodeId=2e722452e2e3, content=学习了.谢谢分享, beContent=null, objectType=article, channel=null, level=null, likeNumber=54, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=55a22015915, createdName=1e1ff052m13(暂无匿称), createdTime=Mon Sep 18 09:15:32 CST 2017, time=2017-09-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=245252, encodeId=6da924525240, content=很好.学习了.很有帮助., beContent=null, objectType=article, channel=null, level=null, likeNumber=48, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/jW482SpianMayicTRbRZ5RzUn81b5CF5ibVPib8jWI92iciaxmqGHlwruOnK4SVZykd4iahqo1hicklIibyZoxm55X7EM8BW9eX1h1hQ2/0, createdBy=8aa81937526, createdName=李东泽, createdTime=Mon Sep 18 08:13:19 CST 2017, time=2017-09-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=245239, encodeId=8bf824523958, content=本研究表明利用70kVp.25mLCM的头颈部CTA能够获得满足诊断的图像质量.并且放射剂量减低.与100-kVp.40-mLCM扫描条件下相比.在检出动脉狭窄时具有较高的准确率., beContent=null, objectType=article, channel=null, level=null, likeNumber=42, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/NUyjXTCJjo7cJ6ejWUr2nIia8qOvAKNdLHr32Df6G8iaoaOx6pHaoiacwp26DaslxZHCGbibZhhCGven4rvmWP60GahtzgFjgCjR/0, createdBy=6b111703011, createdName=有备才能无患, createdTime=Mon Sep 18 07:59:03 CST 2017, time=2017-09-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=245203, encodeId=eee224520399, content=学了.........., beContent=null, objectType=article, channel=null, level=null, likeNumber=20, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mStl88fu4Neru1qt53a14aACuSzg3TZhkTcsPYVibyHibhTZ5L4k9qIBWiaej4lgomIsGptf8N16E4mTuIq2DVdJXjPjmwZKrLib/0, createdBy=5a0f2055853, createdName=135****7952平儿, createdTime=Mon Sep 18 06:47:57 CST 2017, time=2017-09-18, status=1, ipAttribution=)]
    2017-09-18 135****7952平儿

    学了..........

    0

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急性脑出血患者在很让夜班大夫头疼的病号,嘱咐家属赶紧先去做个CT再说。而对于下一步怎么办,要全靠你对患者的风险评估了。对于出血是否继续直接影响着你的下一步治疗!研究人员利用标准化多期相CT血管造影(CTA)识别颅内出血点征,进而评估其预测颅内出血进展的准确率和点征的出现率。也许,这会对你很有帮助!

Radiology:腹主动脉瘤腔内修复术后评价瘤囊的更佳指标!

腹主动脉瘤腔内修复术(endovascular therapy)是在DSA动态监测下,经双侧股动脉的小切口,应用特殊的导入系统,将折叠的覆有人工血管薄膜的金属支架送入腹主动脉瘤腔内,利用金属支架的弹性、植入物头端的钩状附件加以球囊扩张作用将腔内植入物固定于动脉瘤近远端的正常动脉壁。利用植入的人工血管在瘤腔内重建新的血流通道,因此隔绝了腹主动脉高压血流对瘤壁的冲击。同时在瘤壁与人工血管之间继发血栓及

Eur Radiol:冠状动脉CTA在显示OCT定义的薄帽的纤维粥样斑块特点的价值

易损斑块(Vulnerable Plaque)是指那些不稳定和有血栓形成倾向的斑块,主要包括破裂斑块、侵蚀性斑块和部分钙化结节性病变。本研究旨在评价利用冠状动脉CTA(CCTA)显示的斑块特征是否与薄帽地纤维粥样斑块(TCFA)的出现具有相关性,后者是一种光学相干断层成像技术定义的斑块破裂的先兆,并将结果发表在Eur Radiol上。

Stroke:CTA对支架血栓切除术的预测价值!

近期,一项发表在杂志Stroke上的研究评估了使用计算机断层扫描血管造影术(CTA确定的闭塞型)确定的闭塞型是否可以使用支架置入器(SR)血栓切除术预测血管内治疗的成功。此项研究回顾性分析了进行CTA检查的中风患者,然后对颅内大动脉闭塞进行血管内治疗。 CTA确定的闭塞类型分为截尾型闭塞或分支部位闭塞,并与血管内治疗期间的数字减影血管造影确定的闭塞型进行了比较。三项快速且易于评估的术前发现(CTA

Neuroradiology:CTA颅外颈内动脉火焰征在超急性缺血性脑卒中患者的诊断价值

颅外颈内动脉(ICA)火焰形假性闭塞是CTA和数字剪影血管造影(DSA)血流相关的表现,为颅内外ICA闭塞或夹层的假象。本研究旨在验证超急性缺血性脑卒中患者CTA火焰形颅外ICA征的诊断价值,并将结果发表在Neuroradiology上。