多排CT(multidetector CT, MDCT)和多层CT(multi-slice CT, MSCT)的区别

2012-04-29 MedSci MedSci原创

多排CT(multidetector CT, MDCT)和多层CT(multi-slice CT, MSCT)的区别 “排”是指CT扫描机探测器的阵列数,一般排数越多,探测器宽度越宽,一次扫描完成的宽度越大。有人将多“排”CT称为多 “层”CT(multislice CT,MSCT),在一般情况下两者的含义相同,即有多少“排”探测器,一次扫描即可完成多少“层”图像的采集。但是,如果每排探测器一

多排CT(multidetector CT, MDCT)和多层CT(multi-slice CT, MSCT)的区别

“排”是指CT扫描机探测器的阵列数,一般排数越多,探测器宽度越宽,一次扫描完成的宽度越大。有人将多“排”CT称为多 “层”CT(multislice CT,MSCT),在一般情况下两者的含义相同,即有多少“排”探测器,一次扫描即可完成多少“层”图像的采集。但是,如果每排探测器一次采集重建出2层图像,例如,西门子64层CT,实际探测器是32排,每排出2幅图像,因此一次采集可以形成64层图像。CT技术的不断发展,使MDCT在心脏检查方面,无论在扫描时间上,还是在冠状动脉诊断的敏感性和准确性上都有明显提高,如:64排CT较以往16排CT扫描速度加快,由0.42~0.50 s/周提高到0.33 s/周,一次心脏扫描仅需8~10 s。

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  2. [GetPortalCommentsPageByObjectIdResponse(id=2025270, encodeId=eaf220252e08e, content=<a href='/topic/show?id=821b1140677' target=_blank style='color:#2F92EE;'>#MDCT#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=46, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11406, encryptionId=821b1140677, topicName=MDCT)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6f63175, createdName=nian.wang1982, createdTime=Sun Oct 14 17:05:00 CST 2012, time=2012-10-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1862736, encodeId=ddb51862e36a3, content=<a href='/topic/show?id=0b69542242' target=_blank style='color:#2F92EE;'>#CTO#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5422, encryptionId=0b69542242, topicName=CTO)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c66088, createdName=gao_jian4217, createdTime=Wed Sep 12 10:05:00 CST 2012, time=2012-09-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1652066, encodeId=f139165206631, content=<a href='/topic/show?id=13d01e24509' target=_blank style='color:#2F92EE;'>#TEC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=50, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=17245, encryptionId=13d01e24509, topicName=TEC)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=852f24292001, createdName=shock_melon, createdTime=Sun Sep 02 13:05:00 CST 2012, time=2012-09-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1406670, encodeId=b7da14066e0db, content=<a href='/topic/show?id=099d122e1cd' target=_blank style='color:#2F92EE;'>#MSC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12271, encryptionId=099d122e1cd, topicName=MSC)], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/DYAIOgq83epVh4QoCj2A7xBBEjh8q7ia2BsLkylnuQ15ia2MDzvr28XR0CVvBPpFXTlB1mprG7WgBb06gvn4Eia5Q/132, createdBy=55e02571190, createdName=huanbaofeng, createdTime=Tue May 01 08:05:00 CST 2012, time=2012-05-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1561967, encodeId=372c156196ef7, content=<a href='/topic/show?id=e22f122e434' target=_blank style='color:#2F92EE;'>#MSCT#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=36, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12274, encryptionId=e22f122e434, topicName=MSCT)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=a12645, createdName=docwu2019, createdTime=Tue May 01 08:05:00 CST 2012, time=2012-05-01, status=1, ipAttribution=)]
    2012-09-12 gao_jian4217
  3. [GetPortalCommentsPageByObjectIdResponse(id=2025270, encodeId=eaf220252e08e, content=<a href='/topic/show?id=821b1140677' target=_blank style='color:#2F92EE;'>#MDCT#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=46, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11406, encryptionId=821b1140677, topicName=MDCT)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6f63175, createdName=nian.wang1982, createdTime=Sun Oct 14 17:05:00 CST 2012, time=2012-10-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1862736, encodeId=ddb51862e36a3, content=<a href='/topic/show?id=0b69542242' target=_blank style='color:#2F92EE;'>#CTO#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5422, encryptionId=0b69542242, topicName=CTO)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c66088, createdName=gao_jian4217, createdTime=Wed Sep 12 10:05:00 CST 2012, time=2012-09-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1652066, encodeId=f139165206631, content=<a href='/topic/show?id=13d01e24509' target=_blank style='color:#2F92EE;'>#TEC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=50, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=17245, encryptionId=13d01e24509, topicName=TEC)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=852f24292001, createdName=shock_melon, createdTime=Sun Sep 02 13:05:00 CST 2012, time=2012-09-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1406670, encodeId=b7da14066e0db, content=<a href='/topic/show?id=099d122e1cd' target=_blank style='color:#2F92EE;'>#MSC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12271, encryptionId=099d122e1cd, topicName=MSC)], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/DYAIOgq83epVh4QoCj2A7xBBEjh8q7ia2BsLkylnuQ15ia2MDzvr28XR0CVvBPpFXTlB1mprG7WgBb06gvn4Eia5Q/132, createdBy=55e02571190, createdName=huanbaofeng, createdTime=Tue May 01 08:05:00 CST 2012, time=2012-05-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1561967, encodeId=372c156196ef7, content=<a href='/topic/show?id=e22f122e434' target=_blank style='color:#2F92EE;'>#MSCT#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=36, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12274, encryptionId=e22f122e434, topicName=MSCT)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=a12645, createdName=docwu2019, createdTime=Tue May 01 08:05:00 CST 2012, time=2012-05-01, status=1, ipAttribution=)]
    2012-09-02 shock_melon
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    2012-05-01 huanbaofeng
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    2012-05-01 docwu2019