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ID:54601262
大小:1.37 MB
页数:4页
时间:2020-05-03
《CT能谱曲线对肝脏小肿瘤性病变的鉴别诊断价值初探-论文.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、·552·中国医学影像技术2014年第3o卷第4期ChinJMedImagingTechnol,2014,Y0,No4◆:◆腹部影像学ValueofCTenergyspectrumcurveindifferentialdiagnosisofsmallhepatictumorsGUOHao·,SHAOWei—guang,ZHANGDong—wen,LIUJin—gang。,ZhouMao—yi(1.ImagingDepartment,WeifangMedicalUniversity,Weifang261053,China;2.Med
2、icalImagingCenter,AffiliatedHospitalofWeifangMedicalUnivers,ity,Weifang261031,China)[Abstract]ObjectiveToexplorethevalueofspectralcurveindifferentialdiagnosisofsmallhepatictumors.MethodsAretrospectiveanalysisof49patientswithsmallliveroccupyinglesionswasperformed,inclu
3、ding18patientswithsmallhe~patichemangioma(SHH),18withsmallhepatocellularcarcinoma(SHCC)and13withsmallhepaticmetastases(SLM).ImagesofallpatientswereobtainedwithgemstoneCTspectralimaging(GSI)scanning.Accordingtothelawofthespec~trumcurvesaboutSHH,SHCCandSLM,50keVand100ke
4、Vwereselectedasreferencepoints,andthentherateofcurvesoftheselesionsweremeasuredandcalculated.One—wayanalysisofvariancewasappliedtoanalyzetheresults.Re-suitsTheenergyspectrumcurvesofSHH,SHCC,SLMdisplayedtrendofsignificantdeclineinkeYenergyintervalof4O一8O,whiledescendin
5、ggentlyinkeVenergyintervalof80—14O.Theslopewas2.77±1.03,1.99±0.42and0.80±0.34respectivelyforthreespectrumcurves(P<0.05).ConclusionThehomologyofsubstancecanbereflectedbyenergyspectrumcurveanditsslope,thuscontributingtodifferentialdiagnosisofsmallhepatictumors.[Keywords
6、]Energyspectrumcurve;Tomography,X—raycomputed;LiverneoplasmsCT能谱曲线对肝脏小肿瘤性病变的鉴别诊断价值初探郭浩,邵伟光,张东雯,刘金刚,周茂义(1.潍坊医学院医学影像系,山东潍坊261053;2.潍坊医学院附属医院影像中心,山东潍坊261031)[摘要]目的观察能谱曲线鉴别诊断肝脏,Me瘤的价值。方法回顾性分析49例肝脏占位患者,其中肝小血管瘤(SHH)18例,小肝癌(SHCC)18例,肝小转移瘤(SLM)13例,均采用宝石CT能谱成像模式(GSI)扫描,获得门静脉期的
7、能谱系列图像;观察SHH、SHCC、SLM的能谱曲线规律,分别选取50keV和100keV两点作为参考点,测量并计算3种病灶的能谱曲线斜率,并进行单因素方差分析。结果SHH、SHCC、SLM的能谱曲线在4O~80keY能量区间内均呈明显下降趋势,8O~140keY能量区间内较平缓下降,且在4O~8OkeV能量区间内3种病灶的能谱曲线差异较大。3种病灶的能谱曲线斜率分别为2.77±1.03、1.99±0.42、0.80_-4-0.34,差异具有统计学意义(P<0.05)。结论能谱曲线及其斜率可以反映物质的同源性,对鉴别肝脏小肿瘤病变
8、性质有一定价值。[关键词]能谱曲线;体层摄影术,X线计算机;肝肿瘤[中图分类号]R814.42;R735.7[文献标识码]A[文章编号]1003—3289(2014)04—0552—04肝小血管瘤(smallhepatichemangioma,SH
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