World Neurosurg:CT脑灌注成像对于脑肿瘤的评估

2015-08-01 Russell R. Lonser 刘洋

对于大脑半球肿瘤的影像学描述是临床研究中的一个关键部分。核磁和CT作为基础的影像学技术应用于首诊和随后治疗中以及治疗后的复查。在诊断性影像学的基础上(通常在症状或体征出现后)进行外科干预,时常伴随辅助性的放化疗。连续性影像,以核磁为代表,用于评估辅助治疗的效果以及监控复发或者病情进展。当前,CT成像(非灌注)通常用于出血,脑水肿或者其他占位造成的急性神经功能下降。新兴数据表明高级成像技术,包括CT

对于大脑半球肿瘤的影像学描述是临床研究中的一个关键部分。核磁和CT作为基础的影像学技术应用于首诊和随后治疗中以及治疗后的复查。在诊断性影像学的基础上(通常在症状或体征出现后)进行外科干预,时常伴随辅助性的放化疗。连续性影像,以核磁为代表,用于评估辅助治疗的效果以及监控复发或者病情进展。当前,CT成像(非灌注)通常用于出血,脑水肿或者其他占位造成的急性神经功能下降。

新兴数据表明高级成像技术,包括CT灌注成像,能在脑肿瘤的诊断、治疗和随访过程中提供更多的影像学信息。尽管CT灌注成像已经普遍应用于评估脑血管疾病的影响和治疗,它在神经肿瘤学中的应用潜力是目前的研究课题(2, 4)。数据特别标明明确的CT灌注成像特征或许能提高诊断和术前肿瘤分期的准确率(1)。尽管原发脑肿瘤的诊断金标准仍是组织病理学鉴定,协同CT灌注成像可以降低因样本错误而导致的误诊风险。

术前CT灌注成像可能可以引导手术切除固有的脑肿瘤。从CT灌注成像(3)中获得的关于肿瘤血流动力学的信息结合标准核磁可以计划手术入路并且计算肿瘤目标体积以便于安全切除。应用神经导航影像和工具,可以切除不同灌注区域的组织并且不仅可以分析肿瘤的亚型也可以决定不同的辅助治疗方案。CT灌注成像可以应用于确定高级别肿瘤的区域引导活检或者提高不能切除区域诊断的准确率。

目前,连续的核磁经常用于评估肿瘤活检或切除后肿瘤复发或者疗效。然而,要想区分MRI的增强到底是由于肿瘤进展还是“治疗效应”是非常困难的精确区分肿瘤进展或者进展假象很困难,因为两者可以呈现相同的核磁影像。精确区分真正或者虚假的肿瘤进展非常重要,因为治疗方案是不同的。CT灌注成像可能可以区分两者,尽管仍需要更多的更多的研究评估这种模式区分两种不同情况的准确性。

CT灌注成像一项额外的重要应用是术后也可提供不同治疗效果的信息。抗血管药物和细胞毒药物相比较在CT灌注像上的表现有很大区别。新的疗法,包括病毒载体,在CT灌注上会有非常不同的外观。最后,基于CT灌注成像的治疗方案能对于治疗效果和分子生物学改变提供早而有说服力的解释。这项发现可能可以提高治疗脑肿瘤药物的发展。

总的来说,CT灌注成像在评估和治疗中扮演的角色仍需要进一步研究。这篇相关的文章,题目“CT灌注成像:一项脑肿瘤分级的影像学生物标志”,提供了最近和新兴研究的轮廓。作者强调了考虑为脑肿瘤后在这项显影模式中有趣的不断变化的影像学特征。这篇文章为神经肿瘤学家和神经外科肿瘤医师提供了一本入门指南以便于理解CT灌注成像。最后,为理解CT灌注成像和其他脑肿瘤影像学的深远努力是我们为达到无创诊断和改善病人预后中重要的一步。

参考文献

1. Ding B, Ling HW, Chen KM, Jiang H, Zhu YB: Comparison of cerebral blood volume and permeability in preoperative grading of intracranial glioma using CT perfusion imaging. Neuroradiology 48: 773-781, 2006.

2. Eastwood JD, Provenzale JM: Cerebral blood flow, blood volume, and vascular permeability of cerebral glioma assessed with dynamic CT perfusion imaging. Neuroradiology 45:373-376, 2003.

3. Ellika SK, Jain R, Patel SC, Scarpace L, Schultz LR, Rock JP, Mikkelsen T: Role of perfusion CT in glioma grading and comparison with conventional MR imaging features. AJNR Am J Neuroradiol 28:1981-1987, 2007.

4. Lu N, Di Y, Feng XY, Qiang JW, Zhang JW, Wang YG, Guo QY: Comparison between acetazolamide challenge and 10% carbon dioxide challenge perfusion CT in rat C6 glioma. Acad Radiol 19:159-165, 2012.

原始出处:

Elder JB, Lonser RR.Computed tomography perfusion imaging for the assessment of brain tumors. World Neurosurg. 2014 Dec;82(6):e723-4.

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    2015-11-17 limin0214

    cr灌注成像

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    2015-08-03 Messichen1992

    看看

    0

  5. [GetPortalCommentsPageByObjectIdResponse(id=1751371, encodeId=19661e513717b, 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=47, 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 Jan 12 05:30:00 CST 2016, time=2016-01-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=43308, encodeId=907243308f5, content=cr灌注成像, beContent=null, objectType=article, channel=null, level=null, likeNumber=120, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=76271605667, createdName=limin0214, createdTime=Tue Nov 17 10:09:00 CST 2015, time=2015-11-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1988437, encodeId=3a66198843e4d, 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=45, 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 Dec 21 10:30:00 CST 2015, time=2015-12-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=34249, encodeId=c6e334249a5, content=看看, beContent=null, objectType=article, channel=null, level=null, likeNumber=73, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=ed101627734, createdName=Messichen1992, createdTime=Mon Aug 03 13:11:00 CST 2015, time=2015-08-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=34250, encodeId=babb34250ab, content=值得一看, beContent=null, objectType=article, channel=null, level=null, likeNumber=112, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=ed101627734, createdName=Messichen1992, createdTime=Mon Aug 03 13:11:00 CST 2015, time=2015-08-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1364045, encodeId=d8051364045d9, content=<a href='/topic/show?id=7c5615628ad' target=_blank style='color:#2F92EE;'>#ROS#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=22, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=15628, encryptionId=7c5615628ad, topicName=ROS)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=acc3210, createdName=lsndxfj, createdTime=Mon Aug 03 10:30:00 CST 2015, time=2015-08-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1417994, encodeId=9e1f141e99408, content=<a href='/topic/show?id=6ba485016cd' target=_blank style='color:#2F92EE;'>#脑肿瘤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=26, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=85016, encryptionId=6ba485016cd, topicName=脑肿瘤)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=76f03326658, createdName=839640779, createdTime=Mon Aug 03 10:30:00 CST 2015, time=2015-08-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=34064, encodeId=8e0b340646b, content=看看, beContent=null, objectType=article, channel=null, level=null, likeNumber=79, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=3b2c1627329, createdName=owlhealth, createdTime=Sun Aug 02 16:00:00 CST 2015, time=2015-08-02, status=1, ipAttribution=)]
    2015-08-03 Messichen1992

    值得一看

    0

  6. [GetPortalCommentsPageByObjectIdResponse(id=1751371, encodeId=19661e513717b, 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=47, 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 Jan 12 05:30:00 CST 2016, time=2016-01-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=43308, encodeId=907243308f5, content=cr灌注成像, beContent=null, objectType=article, channel=null, level=null, likeNumber=120, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=76271605667, createdName=limin0214, createdTime=Tue Nov 17 10:09:00 CST 2015, time=2015-11-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1988437, encodeId=3a66198843e4d, 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=45, 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 Dec 21 10:30:00 CST 2015, time=2015-12-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=34249, encodeId=c6e334249a5, content=看看, beContent=null, objectType=article, channel=null, level=null, likeNumber=73, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=ed101627734, createdName=Messichen1992, createdTime=Mon Aug 03 13:11:00 CST 2015, time=2015-08-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=34250, encodeId=babb34250ab, content=值得一看, beContent=null, objectType=article, channel=null, level=null, likeNumber=112, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=ed101627734, createdName=Messichen1992, createdTime=Mon Aug 03 13:11:00 CST 2015, time=2015-08-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1364045, encodeId=d8051364045d9, content=<a href='/topic/show?id=7c5615628ad' target=_blank style='color:#2F92EE;'>#ROS#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=22, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=15628, encryptionId=7c5615628ad, topicName=ROS)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=acc3210, createdName=lsndxfj, createdTime=Mon Aug 03 10:30:00 CST 2015, time=2015-08-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1417994, encodeId=9e1f141e99408, content=<a href='/topic/show?id=6ba485016cd' target=_blank style='color:#2F92EE;'>#脑肿瘤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=26, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=85016, encryptionId=6ba485016cd, topicName=脑肿瘤)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=76f03326658, createdName=839640779, createdTime=Mon Aug 03 10:30:00 CST 2015, time=2015-08-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=34064, encodeId=8e0b340646b, content=看看, beContent=null, objectType=article, channel=null, level=null, likeNumber=79, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=3b2c1627329, createdName=owlhealth, createdTime=Sun Aug 02 16:00:00 CST 2015, time=2015-08-02, status=1, ipAttribution=)]
    2015-08-03 lsndxfj
  7. [GetPortalCommentsPageByObjectIdResponse(id=1751371, encodeId=19661e513717b, 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=47, 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 Jan 12 05:30:00 CST 2016, time=2016-01-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=43308, encodeId=907243308f5, content=cr灌注成像, beContent=null, objectType=article, channel=null, level=null, likeNumber=120, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=76271605667, createdName=limin0214, createdTime=Tue Nov 17 10:09:00 CST 2015, time=2015-11-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1988437, encodeId=3a66198843e4d, 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=45, 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 Dec 21 10:30:00 CST 2015, time=2015-12-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=34249, encodeId=c6e334249a5, content=看看, beContent=null, objectType=article, channel=null, level=null, likeNumber=73, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=ed101627734, createdName=Messichen1992, createdTime=Mon Aug 03 13:11:00 CST 2015, time=2015-08-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=34250, encodeId=babb34250ab, content=值得一看, beContent=null, objectType=article, channel=null, level=null, likeNumber=112, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=ed101627734, createdName=Messichen1992, createdTime=Mon Aug 03 13:11:00 CST 2015, time=2015-08-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1364045, encodeId=d8051364045d9, content=<a href='/topic/show?id=7c5615628ad' target=_blank style='color:#2F92EE;'>#ROS#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=22, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=15628, encryptionId=7c5615628ad, topicName=ROS)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=acc3210, createdName=lsndxfj, createdTime=Mon Aug 03 10:30:00 CST 2015, time=2015-08-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1417994, encodeId=9e1f141e99408, content=<a href='/topic/show?id=6ba485016cd' target=_blank style='color:#2F92EE;'>#脑肿瘤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=26, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=85016, encryptionId=6ba485016cd, topicName=脑肿瘤)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=76f03326658, createdName=839640779, createdTime=Mon Aug 03 10:30:00 CST 2015, time=2015-08-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=34064, encodeId=8e0b340646b, content=看看, beContent=null, objectType=article, channel=null, level=null, likeNumber=79, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=3b2c1627329, createdName=owlhealth, createdTime=Sun Aug 02 16:00:00 CST 2015, time=2015-08-02, status=1, ipAttribution=)]
  8. [GetPortalCommentsPageByObjectIdResponse(id=1751371, encodeId=19661e513717b, 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=47, 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 Jan 12 05:30:00 CST 2016, time=2016-01-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=43308, encodeId=907243308f5, content=cr灌注成像, beContent=null, objectType=article, channel=null, level=null, likeNumber=120, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=76271605667, createdName=limin0214, createdTime=Tue Nov 17 10:09:00 CST 2015, time=2015-11-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1988437, encodeId=3a66198843e4d, 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=45, 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 Dec 21 10:30:00 CST 2015, time=2015-12-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=34249, encodeId=c6e334249a5, content=看看, beContent=null, objectType=article, channel=null, level=null, likeNumber=73, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=ed101627734, createdName=Messichen1992, createdTime=Mon Aug 03 13:11:00 CST 2015, time=2015-08-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=34250, encodeId=babb34250ab, content=值得一看, beContent=null, objectType=article, channel=null, level=null, likeNumber=112, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=ed101627734, createdName=Messichen1992, createdTime=Mon Aug 03 13:11:00 CST 2015, time=2015-08-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1364045, encodeId=d8051364045d9, content=<a href='/topic/show?id=7c5615628ad' target=_blank style='color:#2F92EE;'>#ROS#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=22, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=15628, encryptionId=7c5615628ad, topicName=ROS)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=acc3210, createdName=lsndxfj, createdTime=Mon Aug 03 10:30:00 CST 2015, time=2015-08-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1417994, encodeId=9e1f141e99408, content=<a href='/topic/show?id=6ba485016cd' target=_blank style='color:#2F92EE;'>#脑肿瘤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=26, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=85016, encryptionId=6ba485016cd, topicName=脑肿瘤)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=76f03326658, createdName=839640779, createdTime=Mon Aug 03 10:30:00 CST 2015, time=2015-08-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=34064, encodeId=8e0b340646b, content=看看, beContent=null, objectType=article, channel=null, level=null, likeNumber=79, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=3b2c1627329, createdName=owlhealth, createdTime=Sun Aug 02 16:00:00 CST 2015, time=2015-08-02, status=1, ipAttribution=)]
    2015-08-02 owlhealth

    看看

    0

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