雙源CT低kV掃描技術(shù)在肝臟增強(qiáng)中的應(yīng)用研究

雙源CT低kV掃描技術(shù)在肝臟增強(qiáng)中的應(yīng)用研究摘要：

目的：探討雙源CT低kV掃描技術(shù)在肝臟增強(qiáng)中的應(yīng)用價(jià)值。

方法：選擇60例需進(jìn)行肝臟增強(qiáng)CT檢查的患者，隨機(jī)分為雙源CT組和單源CT組，每組30例。雙源CT組采用雙源CT低kV掃描技術(shù)，單源CT組采用標(biāo)準(zhǔn)CT掃描技術(shù)。比較兩組患者的肝臟CT值、肝臟對(duì)比度、腫瘤檢出率以及輻射劑量。

結(jié)果：雙源CT組肝臟CT值高于單源CT組，差異有統(tǒng)計(jì)學(xué)意義（P<0.05）；肝臟對(duì)比度高于單源CT組，差異有統(tǒng)計(jì)學(xué)意義（P<0.05）；腫瘤檢出率高于單源CT組，差異有統(tǒng)計(jì)學(xué)意義（P<0.05）；輻射劑量低于單源CT組，差異有統(tǒng)計(jì)學(xué)意義（P<0.05）。

結(jié)論：雙源CT低kV掃描技術(shù)在肝臟增強(qiáng)中具有較高的應(yīng)用價(jià)值，其肝臟CT值高、肝臟對(duì)比度高、腫瘤檢出率高、輻射劑量低等優(yōu)勢(shì)，值得推廣使用。

關(guān)鍵詞：雙源CT；低kV掃描；肝臟增強(qiáng)；肝臟CT值；肝臟對(duì)比度；腫瘤檢出率；輻射劑量

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