头颈部双能cta低浓度对比剂成像-研究

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1、leftandrightanteriorcerebralarteryA2segment，leftandrightmiddlecerebralarteryMIsegment，leftandrightposteriorcerebralarteryP1segment，thencalculatetheSNR(Signal—to—NoiseRatio)，nolseratio(Contrast—to—NoiseRatio)．Twophysiciansevaluatetheimageofoverall，theaelrticarch，thebasilarartery，leftandrig

2、htexternalcarotidartery(thebeginningpart)，leftandrightinternalcarotidartery(initialsegment)，leftandrightsiphonsection，leftandrightanteriorcerebralartervA2segment，leftandrightmiddlecerebralarteryM1segment，posteriorcerebralarteryPIsegmentandsuperiorvenacava——subclavianveinartifacts，countand

3、analysetheevaluation．№SUIt1．TheCTvalueoftheaorticarch，thebasilarartery，leftandrightexternalcarotidartery(thebeginningpart)，leftandrightinternalcarotidartery(initialsegment)，leftandrightsiphonsection，leftandrightanteriorcerebralarteryA2segment，leftandrightmiddlecerebralarteryMIsegment，post

4、eriorcerebralarteryPIsegmenthasstatisticaldifferencebetweengroupA．groupBandgroupC(P0．05)．2．thesubjectiveevaluateofoverallimage，theaorticarch，thebasi1arartery，leftandrightexternalcarotidartery(thebegi

5、nningpart)，andrightinternalcarotidartery(initialsegment)，leftandrightsiphonsection，leftandrightanteriorcerebralarteryA2segment，leftandrightmiddlecerebralarteryMIsegment，posteriorcerebralarteryPIsegmentdonothasstatisticaldifferencebetweengroupA，groupB，groupC(P>O．05)：3．Thesuperiorvenacava—s

6、ubclavianveinartif'actsdonothasstatisticaldifferencebetweengroupA，groupB，groupC(P>O．05)．ConclusionThestudyfoundthatnormalweightandoverweightpeoplewhotakethebeadandneckETAofdual—sourceCTinject300mgl／mlcontrastagentisfeasible，theimagemeettherequirementsfordiagnosis．Sothatdeclinethedamageofr

7、enal．IVKeywords：HeadandNeckCTA，Overweight，LowconcentrationsV目录广州中医药大学学位论文原创性声明⋯⋯⋯⋯⋯⋯⋯⋯．⋯⋯⋯⋯．⋯摘要⋯．⋯⋯．⋯⋯⋯⋯⋯⋯⋯⋯．⋯⋯⋯⋯．⋯．．⋯⋯⋯．IAbstract⋯．⋯⋯⋯⋯．⋯⋯⋯⋯⋯⋯．⋯⋯⋯⋯．⋯⋯⋯⋯．III录．⋯．⋯．⋯⋯．．⋯⋯⋯⋯⋯⋯．⋯⋯．．⋯⋯⋯⋯．．⋯．VII引言⋯．⋯⋯⋯⋯．．⋯．．．．．⋯．．．．．⋯．．．．．．．．⋯．⋯⋯⋯⋯．．．1第一章文献研究⋯⋯⋯⋯⋯⋯⋯⋯．⋯⋯⋯⋯．⋯⋯⋯⋯⋯．．．3一、心血管影