个体化低对比剂剂量注射方案在颈动脉计算机断层扫描血管造影中的应用.pdf

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1、岭南心血管病杂志2015年5月第21卷第3期·37l·doi：10．3969／j．issn．1007-9688．2015．03．027·论著·个体化低对比剂剂量注射方案在颈动脉计算机断层扫描血管造影中的应用徐焕文，郑君惠，杨军，罗建权，崔燕海，李景雷[广东省人民医院(广东省医学科学院)放射科，广州510080]摘要：目的探讨个体化低对比剂剂量注射方案在颈动脉计算机断层扫描(computedtomography，CT)血管造影(computedtomographyangiography．CTA)中应用的可行性。方法对58例连续受检患者分为A、B两组行64层螺旋颈动

2、脉cT成像，以4mL／s速率进行高压团注，A组(29例)为低剂量对比剂组，对比剂总量(mL)为体质量(kg)x0．7；B组(29例)为对照组，对比剂总量(mL)为体质量(kg)×1．0。对患者体质量、对比剂剂量、各分支血管cT值及主观评分进行对比。结果A组对比剂剂量低于B组，差异有统计学意义[(41．82+6．78)mL(61．72±9．12)mL，t=一9．426，P

3、：颈动脉计算机断层扫描血管造影；个体化；对比剂剂量中图分类号：R540．4文献标志码：A文章编号：1007—9688(2015)03—0371—03Applicationofindividualizedlow-dosecontrastmediuminjectionschemeincarotidarterycomputedtomographyangiographyXUHuan—wen，ZHENGJun-hui，YANGJun，LUOJian-quan，CUIYan-hai，LIJing—lei(DepartmentofRadiology，GuangdongGene

4、ralHospital，GuangdongAcademyofMedicalSciences，Guangzhou510080，China)Abstract：ObjectivesToexploretheapplicationfeasibilityofindividuallow—dosecontrastmediuminjectionschemeincarotidarterycomputedtomography(CT)angiography(CTA)．MethodsTotally58patientsbycontinuousexaminationweredividedin

5、togroupAandgroupB．Theyreceived64一slicespiralCTimagingofcarotidarteriesat4mL／sforhigh—pressureinjection．PatientsingroupA(29cases)receivedlow—dosecontrastmedium，thevolume(mL)equaledtotheweight(kg)xO．7；PatientsingroupB(29cases)werecontrols，thecontrastmediumvolume(mL)equaledtotheweight(k

6、g)×1．0．Patients’weight，contrastmediumdose，CTvalueofeachbranchvesselandsubjectivescorewerecomparedbetweenthetwogroups．ResultsContrastmediumdoseofAgroupwassignificantlylowerthanthatofBgroup[(41．82±6．78)mLVS．(61．72±9．12)mL，t=一9．426，P<0．05]．ImagequalityscoreofAgroupwasobviouslyhigherthan

7、thatofBgroup(t=2．212，P=0．031)．ConclusionsIndividualizedlow-dosecontrastmediuminjectionschemeinCTAofcarotidarteriescansatisfytheimagequalityrequirementsandevenimprovethediagnosticimagequality，thusitcanbeappliedinclinicalpractice．Keywords：computedtomographyangiographyofcarotidartery；in

8、dividualized