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1、两种64层CT尿路成像方法对输尿管结石诊断价值的比较【摘要】目的比较两种64层CT尿路成像(CTU)方法对输尿管结石的诊断价值。方法本文包含两组资料。一组为阳性法组,收集B超提示输尿管结石,行静脉肾盂造影(IVP)的患者共36例,患者行IVP检查后接受64层CT平扫;另一组为阴性法组,收集23例急性肾绞痛疑为输尿管结石直接行64层CT平扫。将上述两组原始资料传送至工作站,用多平面重建(MPR)及曲面重建(CPR)进行图像后处理,比较KUB+IVP与CTU的诊断输尿管结石阳性率、阴性法CTU与超声的诊断输尿管结石阳性率以及阳性法C
2、TU与阴性法CTU的诊断输尿管结石阳性率,用SPSS12.0软件进行χ2检验。结果(1)阳性法组36例输尿管结石中,KUB+IVP诊断正确者20例,阳性法CTU诊断正确者31例,两者差异有统计学意义(χ2=8.13,P<0.05);(2)阴性法组23例输尿管结石中,阴性法CTU诊断正确者22例,B超诊断正确者15例,两者差异有统计学意义(χ2=4.97,P<0.05);阳性法CTU与阴性法CTU诊断输尿管结石正确率无明显差异(χ2=0.55,P>0.05)。结论阴性法CTU与阳性法CTU对输尿管结石诊断率优于B
3、超、KUB+IVP;阴性法方便快捷、不需使用对比剂,尤其适用于肾绞痛患者的检查。【关键词】尿路造影体层摄影术X线计算机输尿管结石9[Abstract]ObjectiveTocomparethediagnosticvaluesofureteralstoneswithtwomethodsof64-slicecomputedtomographicurography(CTU).MethodsTwogroupswereincluded:thepositivegroup,36patientswhowerediagnosedureterals
4、tonesbyBultrasound,underwentIVPandlaterordelayedCTU;thenegativegroup,23patientswithrenalcolicandsuspectionofureteralstone,underwentemergencyplainCT.Thedataofallthepatientsweretransferredtoworkstationfor3Dreconstructionofmultipleplanereconstruction(MPR)andcurveplanere
5、formation(CPR).χ2testwasusedwiththestatisticsoftwareofSPSS12.0,tocomparethediagnosticaccuracyforureteralstonesbetweenthemethodsofKUB+IVPandCTUofpositive,CTUofnegativeandB-Ultrasound,CTUsofpositiveandnegative.Results(1)Inpositivegroup,20(20/36)casesofureteralstonewere
6、confirmedbyKUB+IVP,31(31/36)byCTU.Betweenthem,therewassignificantdifference(χ2=8.13,p<0.05).(2)Innegativegroup,22(22/23)and15(15/23)casesofureteralstoneswerediagnosedbyCTUandBultrasound,respectively,withsignificantdifference(χ2=4.97,p<0.05).(3)Therewasnosignifi
7、cantdifferencebetweenCTUsofpositiveandnegativefordiagnosticaccuracyofureteralstones(χ2=0.55,p>0.05).ConclusionCTUofpositiveand9negativeweresuperiortoBultrasoundandKUB+IVPforaccuracyofdiagnosingureteralstones;CTUofnegative,withadvantagesofconvenience,non-contrastme
8、dia,isespeciallysuitedforthecheckupofpatientswithrenalcolic.[Keywords]urography;tomography,X-raycomputed;ureteralstone 输尿管结石可引起尿路梗