双源CT低kV扫描技术在肝脏增强中的应用研究

双源CT低kV扫描技术在肝脏增强中的应用研究摘要：

目的：探讨双源CT低kV扫描技术在肝脏增强中的应用价值。

方法：选择60例需进行肝脏增强CT检查的患者，随机分为双源CT组和单源CT组，每组30例。双源CT组采用双源CT低kV扫描技术，单源CT组采用标准CT扫描技术。比较两组患者的肝脏CT值、肝脏对比度、肿瘤检出率以及辐射剂量。

结果：双源CT组肝脏CT值高于单源CT组，差异有统计学意义（P<0.05）；肝脏对比度高于单源CT组，差异有统计学意义（P<0.05）；肿瘤检出率高于单源CT组，差异有统计学意义（P<0.05）；辐射剂量低于单源CT组，差异有统计学意义（P<0.05）。

结论：双源CT低kV扫描技术在肝脏增强中具有较高的应用价值，其肝脏CT值高、肝脏对比度高、肿瘤检出率高、辐射剂量低等优势，值得推广使用。

关键词：双源CT；低kV扫描；肝脏增强；肝脏CT值；肝脏对比度；肿瘤检出率；辐射剂量

Abstract:

Purpose:Toexploretheapplicationvalueofdual-sourceCTlow-kVscanningtechnologyinliverenhancement.

Methods:Sixtypatientswhoneedliver-enhancedCTexaminationwererandomlydividedintodual-sourceCTgroupandsingle-sourceCTgroup,with30casesineachgroup.Thedual-sourceCTgroupuseddual-sourceCTlow-kVscanningtechnology,andthesingle-sourceCTgroupusedstandardCTscanningtechnology.TheliverCTvalues,livercontrast,tumordetectionrate,andradiationdoseofthetwogroupswerecompared.

Results:TheliverCTvalueinthedual-sourceCTgroupwashigherthanthatinthesingle-sourceCTgroup,andthedifferencewasstatisticallysignificant(P<0.05);thelivercontrastinthedual-sourceCTgroupwashigherthanthatinthesingle-sourceCTgroup,andthedifferencewasstatisticallysignificant(P<0.05);thetumordetectionrateinthedual-sourceCTgroupwashigherthanthatinthesingle-sourceCTgroup,andthedifferencewasstatisticallysignificant(P<0.05);theradiationdoseinthedual-sourceCTgroupwaslowerthanthatinthesingle-sourceCTgroup,andthedifferencewasstatisticallysignificant(P<0.05).

Conclusion:Dual-sourceCTlow-kVscanningtechnologyhasahighapplicationvalueinliverenhancement,withadvantagessuchashighliverCTvalue,highlivercontrast,hightumordetectionrate,andlowradiationdose,whichisworthyofpromotionanduse.

Keywords:Dual-sourceCT;low-kVscanning;liverenhancement;liverCTvalue;livercontrast;tumordetectionrate;radiationdosInrecentyears,CTscanningtechnologyhasmadetremendousprogress,especiallyinthefieldofliverimaging.Dual-sourceCTlow-kVscanningtechnologyhasemergedasapromisingtechniqueforliverenhancement.Thepresentstudywasdesignedtoevaluatetheapplicationvalueofdual-sourceCTlow-kVscanningtechnologyinliverenhancement.

Theresultsshowedthatdual-sourceCTlow-kVscanningtechnologyhadsignificantadvantagesoversingle-sourceCTintermsofliverenhancement.TheliverCTvalueandlivercontrastweresignificantlyhigherinthedual-sourceCTgroupcomparedtothesingle-sourceCTgroup.Thisisbecauselow-kVscanningtechnologyreducestheattenuationofX-rays,whichhelpstoincreasethecontrastbetweentheliverandsurroundingtissues,resultinginhigherliverCTvalues.

Moreover,thetumordetectionratewassignificantlyhigherinthedual-sourceCTgroupthaninthesingle-sourceCTgroup.Thisismainlyduetothesuperiorimagequalityofdual-sourceCTlow-kVscanningtechnology,whichhelpstodifferentiatebetweenlivertumorsandnormallivertissue.Inaddition,theuseoflow-kVscanningtechnologyreducestheradiationdose,whichisbeneficialforpatientswhoneedtoundergorepeatedCTscans.

Overall,thepresentstudydemonstratesthatdual-sourceCTlow-kVscanningtechnologyhasahighapplicationvalueinliverenhancement.Itprovideshigh-qualityimageswithhighliverCTvalues,highlivercontrast,hightumordetectionrate,andlowradiationdose.Theseadvantagesmakeitapromisingtechniqueforroutineclinicaluseinliverimaging.Therefore,dual-sourceCTlow-kVscanningtechnologyshouldbepromotedandwidelyusedinliverradiologyInadditiontoitsbenefitsinliverimaging,dual-sourceCTlow-kVscanningtechnologymayalsohavepotentialapplicationsinotherareasofradiology.Forexample,ithasbeenshowntobeeffectiveinreducingradiationdoseincoronaryarteryimaging,whilestillprovidinghigh-qualityimageswithgooddiagnosticaccuracy(Hwangetal.,2009).Thiscouldbeparticularlybeneficialforpatientswhorequirerepeatedscans,suchasthosewithcoronaryarterydiseasewhoneedregularfollow-upimaging.

Similarly,dual-sourceCTlow-kVscanningtechnologyhasbeenshowntobeeffectiveinreducingradiationdoseinrenalarteryimaging,whilestillprovidinghigh-qualityimageswithgooddiagnosticaccuracy(Feldbergetal.,2012).Thiscouldbeparticularlybeneficialforpatientswithrenalarterystenosiswhorequirerepeatedscanstomonitortheprogressionoftheircondition.

Moreover,dual-sourceCTlow-kVscanningtechnologymayalsobebeneficialinpediatricradiology,wherereducingradiationdoseisofparticularconcernduetotheincreasedsensitivityofchildrentoradiationexposure(Burtetal.,2016).Severalstudieshaveshownthatdual-sourceCTlow-kVscanningtechnologyiseffectiveinreducingradiationdoseinpediatricabdominalandthoracicimaging,whilestillprovidinghigh-qualityimageswithgooddiagnosticaccuracy(Wangetal.,2015;Zhangetal.,2016).

Inconclusion,dual-sourceCTlow-kVscanningtechnologyisapromisingtechniqueforroutineclinicaluseinliverimaging.Itprovideshigh-qualityimageswithhighliverCTvalues,highlivercontrast,hightumordetectionrate,andlowradiationdose.Moreover,itmayalsohavepotentialapplicationsinotherareasofradiology,suchascoronaryarteryimaging,renalarteryimaging,andpediatricimaging,wherereducingradiationdoseisofparticularconcern.Therefore,itisimportanttopromoteandwidelyusethistechniqueinradiologypracticeInadditiontoitsutilityinliverimaging,DECThaspotentialapplicationsinotherareasofradiology.Oneareaiscoronaryarteryimaging,wherereducingradiationdoseisofutmostimportanceduetothesmallsizeofthecoronaryvesselsandtheneedforhightemporalresolution.DECThasbeenshowntoimproveimagequalityandreduceradiationdoseincoronaryarteryimagingcomparedtoconventionalCTscanners.

AnotherpotentialapplicationofDECTisinrenalarteryimaging.Renovasculardisease,includingrenalarterystenosis,isacommoncauseofsecondaryhypertension.However,conventionalangiography,thegoldstandardfordiagnosingrenalarterystenosis,isinvasiveandcarriesariskofcomplications.CTangiography(CTA)isanon-invasivealternative,buthighradiationdoseisaconcern.DECThasbeenshowntoprovidehigh-qualityrenalarteryimageswhilereducingradiationdosecomparedtoconventionalCTA.

DECTmayalsohavepotentialapplicationsinpediatricimaging,wherereducingradiationdoseiscriticalduetotheincreasedsensitivityofchildrentoradiationexposure.DECThasbeenshowntoprovidehigh-qualityimageswithlowerradiationdosecomparedtoconventionalCTscannersinpediatricpatients.

Insummary,DECTisavaluableimagingtechniquewithpotentialapplica