摘要
AIM:Toassessthevalueofgemstonespectralimaging(GSI)inefficacyevaluationinhepatocellularcancer(HCC)aftertranscatheterarterialchemoembolization(TACE)treatment.METHODS:ThirtypatientswithHCCunderwentGSI,includingnonenhanced,arterial,portalvenousanddelayedphasescans,afterTACEtreatment.ArterialphaseimageswereacquiredwithGSIforreconstructionofvirtualnonenhancedimagesandcoloroverlayimages.Digitalsubtractionangiography(DSA)wasperformedinallthesepatients.Twoblindedandindependentreadersevaluatedthedataintworeadingsessions;standardnonenhanced,arterial,portalvenous,anddelayedphaseimageswerereadinsessionA,andtheoptimalmonochromaticimages,iodine/waterbasedimagesandspectrumfeatureswerereadinsessionB.SensitivityandspecificitywerecalculatedwiththeDSAdataasthereferencestandard.Thesensitivityandspecificitywerecomparedusingtheχ2test.RESULTS:DSArevealed154lesionsin30patients,and100ofthemhadbloodsupply.Overallsensitivityandspecificitywere72%(72/100)and77.8%(42/54)forsessionA,and97%(97/100)and94.4%(51/54)forsessionB,respectively.Thesensitivityandspecificityofthetworeadingsessionsweresignificantlydifferent(χ2=23.04,χ2=7.11,P<0.05).CONCLUSION:ComparedwithconventionalCT,GSIcouldsignificantlyimprovethedetectionofsmallandmultiplelesionswithoutincreasingtheradiationdose.Basedonspectrumfeatures,GSIcouldassesstumorhomogeneityandmoreaccuratelyidentifyresidualtumorsandrecurrentormetastaticlesionsduringefficacyevaluationandfollow-upinHCCafterTACEtreatment.
出版日期
2016年11月21日（中国Betway体育网页登陆平台首次上网日期，不代表论文的发表时间）
