内容文本参考ct onlabel bibliography 1 nov 2018

ʮìɈǡYǙ°OɷʩVolumetricSingle-BeatCoronaryComputedTomographyAngiography:RelationshipofImageQuality,HeartRate,andBodyMassIndex.InitialPatientExperienceWithaNewComputedTomographyScanner.AamirLatif,Metal.MiamiCardiacandVascularInstitute,BaptistHealthSouthFlorida,Miami,FL,JComputAssistTomogr.2016Jun,PMID:27331931Conclusion:Thisstudyusingavolumetricsingle-beatCTscannerdemonstratedgooddiagnosticIQinpatientswithHRoflessthanorequalto70bpmandofgreaterthan70bpmandinpatientswithBMIoflessthanorequalto30kg/m2andBMIofgreaterthan30kg/m2.Therefore,volumetricsingle-beatCCTAisnotonlyfeasiblebutalsoprovidesgooddiagnosticIQregardlessofHRorBMI.ȗɦűǨǸ@NjØdzCT±lÝHR<=70bpmĩ>70bpmBMI<=30ĩ>30ǙĠȣʓɑone-beat]ȵħO´ɆēɀÇǙɬŗ°O ŝɦHRĩBMIÈ=FeasibilityofFree-breathingCCTAusing256-MDCT.Liu,Zetal.DepartmentofRadiology,PekingUniversityPeople’sHospital,Beijing,China.,Medicine(Baltimore).2016Jul;95(27):e4096,PMID:27399104Conclusion:Insummary,free-breathingCCTAisfeasibleusing256-MDCTscannerwithoutheartratecontrol,andfurthermore,canprovidebetterimagequalitywithreducedheartratevariationforcertainpatients.ȗɦ256-MDCT "ƿÓȣʽ;ĕ。TechnicalNote:Evaluationofa160-mm/256-rowCTscannerforwhole-heartquantitativemyocardialperfusionimaging.So,Aetal.ImagingProgram,LawsonHealthResearchInstitute,London,OntarioN6A4V2,Canada.MedPhys.2016Aug;43(8):4821,PMID:27487900Conclusion:ThestudydemonstratesthatthisCTsystemcanprovideaccurateandreproducibleCTnumbersduringcardiacgatedacquisitionsacrossawideaxialfieldofview.ThisCTnumberfidelitywillenablethisimagingtooltoassesscontrastenhancement,potentiallyprovidingvaluableaddedinformationbeyondanatomicevaluationofcoronarystenoses.Furthermore,theirresultscollectivelysuggestedthatthe100kVp/25mAsprotocolrunonthisCTsystemprovidessufficientimageaccuracyatalowradiationdose(<3mSv)forwhole-heartquantitativeCTMPimaging.ȗɦűǨǸɔŠɮĕȷʲŅ≤ň²ÙǙʅɝʨʼnBaǫʧ¿ǙCT ǂǺǙɞqÏɪ7

ƏÀ)- ɔŠ100kVp/25mAsǙǙ;ʉàoʩ<3mSv ʼnBɼÂWide-detectoraxialCTversus4cmdetectorhelicalCTtranscatheteraorticvalvereplacement:iodinedose,radiation,andimagequality.Shuman,Wetal.DepartmentofRadiology,UniversityofWashingtonSchoolofMedicine,Box357115,1959NEPacificSt,Seattle,WA98195,USA.ClinImaging.2016Nov-Dec;40(6):1213-8Conclusion:Inconclusion,the16cmwide-detectoraxialstep-and-shootTAVRplanningCTprotocolwithASIRVresultedinlowerradiationdosewithlessiodineyetwithgreatervascularattenuationandsimilarimagequalitycomparedtothe4cmdetectorscannerusinghelicalscanning,ASIR,andapitchof0.2-0.325.AwidedetectorTAVRplanningCTprotocolmaybeusefulforpatientsinwhombothreductionofiodinedoseandgoodimagequalityaredesirable.ȗɦʇ4cmɎŜASIRɎɽ0.2-0.325Ǚ≤ňřĆ16cmÙ<Ńƣ¨ʅƐʓASIR-VǙTAVI≤ňʉàoʩŨ;ǭÝƔoNjʩŨãɐȇȸ\Ú˞ °Oɷʩǡ8Ù<Ńƣ¨ǙTAVI≤ňřƃNj!ˆɘʽ;ǭoʩ¢ɀÇ°OɷʩǙĠȣAtrialFibrillation:DiagnosticAccuracyofCoronaryAngiographyPerformedwithaWhole-Heart230-μmSpatialResolutionCTScanner.Andreini,Detal.DepartmentofCardiovascularImaging,CentroCardiologicoMonzino,IRCCS,ViaC.Parea4,20138Milan,Italy,Radiology.2017Apr26:161779,PMID:28445682Conclusion:Whole-heartCTenablesevaluationofcoronaryarterieswithhighimagequality,lowradiationexposure,andhighdiagnosticaccuracyinpatientswithchronicAF,withadiagnosticperformancesimilartothatinpatientswithSR.ȗɦ:WĕȷCTȳÂ+;ʉàoʩɆēĦ˕

ɬǫ

˞ɷʩ]ȵ°OZɬŗĜȳNon-invasiveHeartTeamassessmentofmultivesselcoronarydiseasewithcoronarycomputedtomographyangiographybasedonSYNTAXscoreIItreatmentrecommendations:designandrationaleoftherandomisedSYNTAXIIIRevolutiontrial.Cavalcante,Retal.ErasmusUniversityMedicalCenter,Rotterdam,TheNetherlands,EuroIntervention.2017Mar20;12(16):2001-2008,PMID:27973335Conclusion:TheSYNTAXIIIRevolutiontrialwillprovidevaluableinformationregardingtheabilityofapurelynon-invasivecoronaryanatomyassessmenttoselectaccuratelythemostappropriaterevascularisationstrategyforpatientswithmultivesselCAD.ȗɦSYNTAXIIIRevolutionɭ˙áʼnBˉEVĜ]ǀwȵɞqɪ7ȳsǙÔɸHĞ+FÁŋǔǙCADĠȣaǫʘĸŪ 0YN1AX评i网址N:CCp://wwwBynC6GBcoAecom/c6lcul6CoA/BC6AC主要用于针对冠状p脉左主干病x和/或O支病x此评i根据冠状p脉病x解n特点进行t险i层的积i系统，根据病x位置、R重程度、iv、钙化等解n特点定量评价冠脉病x的复杂程度，根据积i的高aV手术方式选择提c初步判断积i≥33建议行CABGi在23-32X间的患者可以选择.C，Y可以选择CABG，积iI22的患者建议.CI、CABG均可。目m0YN1AXi有两种0YN1AX0C-/EIN0YN1AX0C-/E因V0YN1AX评iy是r纯的评价冠状p脉病x的情况，V了对患者的评价更oe面wS体化，提h了0YN1AXII评i，0YN1AXII评i是在0YN1AX评i的基础PoPU床x量，性l、年龄、T国经皮冠状p脉介d治疗指s（2016LT指h在血运重建策略选择方面N对合并左主干和/或m降支近段病x、多支血管病x的稳定冠心病患者，应根据0YN1AX评i和0YN1AXI评i评估T远期风险，选择.CI或冠状p脉旁路移植术。0YN1AXIII/E3-L21I-Nu考资料N:CCp://wwwdAEoiceRevolutionCTandSnapshotFreezeHeart-ratedependentimprovementinimagequalityanddiagnosticaccuracyofcoronarycomputedtomographicangiographybynovelintracyclemotioncorrectionalgorithm.Cho,Ietal.DepartmentofRadiology,NewYork-PresbyterianHospitalandtheWeillCornellMedicalCollege,NewYork,NY,USA;DivisionofCardiology,SeveranceCardiovascularHospitalandSeveranceBiomedicalScienceInstitute,YonseiUniversityCollegeofMedicine,YonseiUniversityHealthSystem,Seoul,SouthKorea,ClinImaging.2015May-Jun;39(3):421-6,PMID:Conclusion:Novelintra-cyclemotioncorrectionalgorithmdemonstratesimprovedheart-ratedependentimageinterpretability,andqualityandaccuracy,particularlyathigherheartrates.ȗɦ ŮʏwƀƎȆƛō§ĕ。CɹǙ°OɴĜɷʩ¢aǫĜƿlŢ²ʇ˞ĕTheeffectofawholeheartmotion-correctionalgorithmonCTimagequalityandmeasurementreproducibilityinPre-TAVRaorticannulusevaluation.Soon,Jetal.DeptofRadiologyandCentreforHeartValveInnovation,StPaul’sHospital,Vancouver,Canada.,JCardiovascComputTomogr.2016Aug2,PMID:Conclusion:MotioncorrectionalgorithmsmayyieldsignificantimprovementsofimagequalityinsystolicCTdatasetsoftheheart.Furthervalidationstudiesarerequiredtodeterminetheeffectonannularmeasurementsandtranslationintoclinicalpractice.ȗɦʏwƀƎȆƛ +ţǣō§ĕȷŌȞŮǙCT°OɷʩˆɘʓƐǙ˙ɩǨǸŷǫÓÝljDžƣʩ¢Diagnosticperformanceof256-rowdetectorcoronaryangiographyinpatientswithhighheartrateswithinasinglecardiaccycle:apreliminarystudy.Liang,Jetal.DepartmentofRadiology,BeijingAnzhenHospital,CapitalMedicalUniversity,2AnzhenRdChaoyangDistrict,Beijing,100029,China.,ClinRadiol.2017Apr5,PMID:28390673Conclusion:CCTAusinga256-detectorrowCTwiththesnapshotfreeze(SSF)techniquecanbeperformedinasinglecardiaccyclewithacquisitionofimageswithhighdiagnosticvalueandlowradiationdoseinpatientswithhighheartrates.ȗɦ@NjSSFijŲǙ256łCTǙ]ǀwȵCTA ĕwŮÑħ˞ĕ。ĠȣImpactofSSFonDiagnosticPerformanceofCoronaryComputedTomographyAngiographyWithin1HeartBeatinPatientsWithHighHeartRateUsinga256-RowDetectorComputedTomography.Liang,Jetal.DepartmentofRadiology,BeijingAnzhenHospital,CapitalMedicalUniversity,Beijing,China,JComputAssistTomogr.2017Jul13,PMID:Conclusion:CoronarycomputedtomographyangiographycanbeperformedinpatientswithhighHRwithin1heartbeatyieldinglowradiationdose.TheuseofSSFtechniquereconstructionfor1heartbeatCCTAachievessignificantimprovementsinimagequalityanddiagnosticvalue.ȗɦ˞ĕ。 ĕw ţɇō§one-beatEffectofgantryrotationspeedandscanmodeonperistalsismotionartifactfrequencyandseverityatabdominalCT.Shah,Retal.DepartmentofRadiology,UniversityofCaliforniaSanFrancisco,505ParnassusAvenue,SanFrancisco,CA,94143-0628,USA,AbdomRadiol(NY).2018Feb15,PMID:29450609Conclusion:PeristalsisartifactsarecommonatabdominopelvicCTscans.Fastgantryrotationspeedsignificantlyreducesthefrequencyofbowelperistalsisartifactsandshouldbeaconsiderationwhenimagingofbowelandstructuresnearboweliscritical ²ȺʢCT≤ň ²Ȫʟ¢ȪʟʡʐȗŹħOāNjʇĘǙLJ IncrementalDiagnosticValueofStressComputedTomographyMyocardialPerfusionWithWhole-HeartCoverageCTScannerinIntermediate-toHigh-RiskSymptomaticPatientsSuspectedofCoronaryArteryDisease.Pontone,Getal.CentroCardiologicoMonzino,IRCCS,Milan,Italy,JACCCardiovascImaging.2018Feb9,PMID:29454774Conclusion:TheinclusionofstressCTPfortheevaluationofpatientswithanintermediatetohighriskforCADisfeasibleandimprovedthediagnosticperformanceofcoronaryCTAfordetectingfunctionallysignificantCADȗɦɶɅĚCTPɪ7 ʼnBtȳHкu]Ultra-low-dosecoronaryarterycalciumscoringusingnovelscoringthresholdsforlowtubevoltageprotocols-apilotstudy.Gräni,Cetal.CardiacImaging,DepartmentofNuclearMedicine,UniversityHospitalZurich,Ramistrasse100,CH-8091Zurich,Switzerland,EurHeartJCardiovascImaging.2018Feb8,PMID:29432592Conclusion:ThepresentstudysuggeststhatCACscoringwithreducedpeaktubevoltageisaccurateifkVp-adaptedthresholdsforcalculationofCACscoresareappliedwhileofferingasubstantialfurtherradiationdosereduction.ȗɦÈŻnÓ CACɪ±ɡȆʷI;ȇǎ°O ʓɑaǫCACɪ±RevolutionCT/ASiR-VObjectivetask-basedassessmentoflow-contrastdetectabilityiniterativereconstruction.Racine,Detal.InstituteofRadiationPhysics,CHUV,Lausanne,Switzerland,RadiatProtDosimetry.2016Jun;169(1-4):73-7,PMID:26922787Conclusion:Evaluatingimagequalitywithfrequencymetricsisfarawayfromtheclinicaltask.Tobeclosetotheconcernsofradiologists,task-basedtools(e.g.CHOmodel)mustbeusedtoobjectivelyevaluatetheimagequality.TheCHOmodelwithDDoGfilterusedinthisstudysuccessfullydemonstrateditscapacitytomimicthehuman’sperformance.Thus,theASIR-Valgorithmevaluatedwiththistoolshowsthattheimagequalityonthelow-contrastdetectabilitystayshighevenwiththesmallsphereoflowcontrast.ThesefindingssuggestthatpatientdosecouldbereducedusingtheASIR-ValgorithmandthenewCTunitevaluated,withoutdecreasingimagequality.ȗɦʛʎˑ。Ļžɪ7°Oȥş @Nj¸!0vǙð[¶ŷÖɛɪ7°OɷʩűǨǸ 'ƺGĺʇ˞ǙÚñʋ。ʒ"ǨǸȗŻɔŠ@NjASIR-VȆƛ +bãĠȣʉàoʩȤʽ;°OɷʩAdaptiveStatisticalIterativeReconstructionV:ImpactonImageQualityinUltra-low-doseCoronaryComputedTomographyAngiography.Benz,Detal.DepartmentofNuclearMedicine,CardiacImaging,UniversityHospitalZurich,Ramistrasse,Zurich,Switzerland,JComputAssistTomogr.2016Conclusion:ASiR-Vyieldssubstantialnoisereductionandimprovedimagequalityenablingintroductionofultralow-doseCCTAȗɦASiR- ţǣʽ;©¼üʼn˞°OɷʩComparisonoflow-dosecoronaryarterycalciumscoringusingtubecurrenttechniqueandhybriditerativereconstructionvs.filteredbackprojectionSulaiman,Netal.St.Paul’sHospital,UniversityofBritishColumbia,Vancouver,BC,Canada,ClinImaging.2017Feb2;43:19-23,PMID:28167282Conclusion:LowdoseCTforcalciumscoringwithHIRenablesstableCACSAgatstonscoreandcalciummassquantificationascomparedtofulldose Agatstonɪ±¢calciummassɪ±Alow-doseandanultra-low-dosecontrastagentprotocolcoronaryCTangiographyinaclinicalsetting:quantitativeandqualitativecomparisontoastandarddoseprotocol.Benz,DCetal.DepartmentofNuclearMedicine,CardiacImaging,UniversityHospitalZurich,Ramistrasse100,8091Zurich,Switzerland,BrJRadiol.2017Apr13,PMID:28406318Conclusion:Inaclinicalsetting,aLDcontrastprotocolwithamedianvolumeof45mLisfeasibleforlatest-generation256-sliceCCTAasityieldsattenuationcomparabletoaNDprotocol.Bycontrast,theimplementationofanULDprotocolremainschallenging.ȗɦŪŘ*256ëʓɑ;ÝƔo(45mL)CCTAŢ ɑǙÐƎøÝƔooʩřƃǙŐŻǡċ Anewlow-dosemulti-phasetraumaCTprotocolanditsimpactondiagnosticassessmentandradiationdoseinmulti-traumapatientsAlagic,Zetal.FunctionalUnitforMusculoskeletalRadiology,FunctionImagingandPhysiology,KarolinskaUniversityHospital,KarolinskaVägenSolna,SE-17176,Stockholm,Sweden,EmergRadiol.2017Apr5,PMID:Conclusion:Thelow-dosemulti-phaseCTprotocolimprovesdiagnosticaccuracyandimagequalityatmarkedlyreducedradiation.However,duetotechnicalcomplexitiesandsurpluselectronicdataprovidedbythenewerlow-dosetechnique,examinationtimeincreases,whichreducesworkflowinacuteemergencysituations. nj!ض;oʩijŲǙ¿ŴĜ¢ʇÁǙŒŀʤ）ßȿƆŽşʵºuʺǬěɬǔ%Ǚð>ơǶDiagnosticperformanceofcoronaryCTangiographycarriedoutwithanovelwhole-heartcoveragehigh-definitionCTscannerinpatientswithhighheartrate.Andreini,Detal.CentroCardiologicoMonzino,IRCCS,Milan,Italy;DepartmentofClinicalSciencesandCommunityHealth,CardiovascularSection,UniversityofMilan,Milan,Italy,IntJCardiol.2018Apr15;257:325-331,PMID:29506722Conclusion:Thewholeorganhigh-definitionCTscannerallowsevaluatingcoronaryarteriesinpatientswithhighHRwithexcellentimagequality,coronaryinterpretabilityandlowradiationexposure.ȗɦW¨Ò˞ƭCT≤ň,ɪ7˞ĕ。Ġȣ]ǀwȵ[ūɀÇǙ°Oɷʩ]ǀw CoronaryCTangiographyinpatientswithatrialfibrillation:Standard-doseandlow-doseimagingwithahigh-resolutionwhole-heartCTscanner.Matveeva,Aetal.DepartmentofRadiology,CardiovascularCentreGmbH,SalzburgerLeite1,97616,BadNeustadtanderSaale,Germany,EurRadiol.2018Feb9,PMID:29426987Conclusion:Usingalow-doseprotocolinAF,radiationexposurecanbedecreasedby50%attheexpenseof20%impairedimagequality.Alow-doseCCTAprotocolcanbeconsideredinyoungpatients,whereasthestandard-doseprotocolisrecommendedforolderpatientsandthosesuspectedofhavingCAD. ʉàŦˇ ûʆĠȣȢɉ@Nj;oʩCCTAřƃȡûĠȣ¢Ǒ8CADǙĠȣņɃ@NjžaImpactofaNewAdaptiveStatisticalIterativeReconstruction(ASIR)-VAlgorithmonImageQualityinCoronaryComputedTomographyAngiography.Pontone,Getal.CentroCardiologicoMonzino,IRCCS,ViaC.Parea4,20138,Milan,Italy,AcadRadiol.2018Mar27.pii:S1076-6332(18)30094-1,PMID:Conclusion:ReconstructionwithASIR-V60%providestheoptimalbalancebetweenimagenoise,SNR,CNR,andimagequality.ȗɦASIR-V60ʧĄʼnB°O©¼H©ƔCNR¢°OɷʩʵǙŪ?úImagingtheInfantChestwithoutSedation:FeasibilityofUsingSingleAxialRotationwith16-cmWide-DetectorCT.Zhu,Yetal.theMedicalImagingCentre,AnkangCentralHospital,Ankang725000,China,Radiology.2018Jan;286(1):279-285,PMID:28956735Conclusion:Comparedwithconventional64-rowhelicalCTwithsedation,useofasingleaxialrotationwith16-cmwide-detectorCTinimagingtheinfantchestwithoutsedationcanreduceradiationdose,preparationtime,andtotalscantime,whileprovidingcomparableimagequality.ȗɦ3ȚǙ64łɎŜCTʰ，≤ňǡƔ +ŨãǙʉàoʩēmǡċǙ°Oɷʩübãa¾şʵ¢ĝ≤ňAdaptiveStatisticalIterativeReconstruction-VVersusStatisticalIterativeReconstruction:ImpactonDoseReductionandImageQualityinBodyComputedTomographyGatti,Metal.DepartmentofDiagnosticImagingandRadiotherapy,CittàdellaSaluteedellaScienzaHospital,Turin,Italy,JComputAssistTomogr.2018Mar/Apr;42(2):191-196,PMID:28937493Conclusion:Adaptivestatisticaliterativereconstruction-VisanewiterativereconstructiontechniquethathasthepotentialtoprovideimagequalityequaltoorgreaterthanASIR,withadosereductionaround40%.ȗɦASIR-VŢDZŘǙʔ*ʧĄijŲ²ʉàoʩbã40 RevolutionCT/SSFImagequalityandradiationdoseofcoronaryCTangiographyperformedwithwhole-heartcoverageCTscannerwithintra-cyclemotioncorrectionalgorithminpatientswithatrialfibrillation.Andreini,Detal.CentroCardiologicoMonzino,IRCCS,ViaC.Parea4,20138,Milan,Italy,EurRadiol.2018Apr;28(4):1383-1392,PMID:29164383Conclusion:Thewhole-heart-coveragescannercouldevaluatecoronaryarterieswithhighimagequalityandwithoutincreaseinradiationexposureinAFpatients,eveninthehighHRgroup.ȗɦ ºuʉàŦˇ˞ĕ。Awhole-heartmotion-correctionalgorithm:EffectsonCTimagequalityanddiagnosticaccuracyofmechanicalvalveprosthesisabnormalitiesSuh,YJetal.DepartmentofRadiology,ResearchInstituteofRadiologicalScience,SeveranceHospital,YonseiUniversityCollegeofMedicine,SouthKorea,JCardiovascComputTomogr.2017Nov;11(6):474-481,PMID:28966103Conclusion:ApplicationofNGSSFcanimproveCTimagequalityanddiagnosticaccuracyinpatientswithmechanicalvalvescomparedtostandardimages.ȗɦNG ʼn˞ųƅljȼ

Imagequalityof256-multidetectorcomputedtomographyinpatientswithatrialfibrillation:aninitialexperience.Chen,Cetal.DepartmentofRadiology,PekingUniversityPeople’sHospital,Beijing100044,China,EuropeanHeartJournalSupplements.2015,17,no.Conclusion:Theanalysisofourinitialexperienceshowsthatthequalityofallimagesobtainedthrough256-MDCTinAFpatientsmeetsthedemandsof AFĠȣʛʎ256-VCT/LiverSegmentationAutomatedlivervolumetryinorthotopiclivertransplantationusingmultiphaseacquisitionsonMDCTLuciani,Aetal.DepartmentofRadiology,CHUHenriMondor,AP-HP,Créteil,France,AJRAmJRoentgenol.2012Jun;198(6):W568-74,PMID:22623572Conclusion:BothmanualandautomatedmultiphaseMDCT-basedvolumemeasurementswerestronglycorrelatedtolivervolume(Pearsoncorrelationcoefficient,r=0.87[p<0.0001]and0.90[p<0.0001],respectively).Automatedmultiphasesegmentationwassignificantlymorerapidthanmanualsegmentation(meantime,16±5[SD]and86±3seconds,respectively;p=0.01).Overall,automatedlivervolumetrybasedonmultiphaseCTacquisitionsisfeasibleandmorerapidthanmanualsegmentation.ȗɦ ±lr=0.87[p<0.0001]¢0.90[p Áú´şʵ±l16 3s;p=0.01 ĝ<ȤɠÁŮǡCTǙȽwȩȷ RevolutionCTCompletionCTofChest,Abdomen,andPelvisafterAcuteHeadandCervicalSpineTrauma:IncidenceofAcuteTraumaticFindingsintheSettingofLow-VelocityTrauma.Kelleher,MSJretal.DepartmentofRadiology,YaleSchoolofMedicine,333CedarSt,NewHaven,CT,USA,Radiology.2016May;279(2):395-9,PMID:Conclusion:CTCAPexaminationsrarelyifeverrevealacutetraumaticinjuryinpatientswhohaveexperiencedlow-velocitytraumaandhaveacuteheadand/orcervicalspinetraumaintheabsenceofevidenceofbodilyinjury.ȗɦCTCAPƆŽđãɚm;ʜi4ƙūŠǫʁ<À4Ǚġ_Feasibilityofasingle-beatprospectiveECG-gatedcardiacCTforcomprehensiveevaluationofaorticvalvediseaseusinga256-detectorrowwide-volumeCTscanner:aninitialexperience.Kim,JYetal.DepartmentofRadiology,SeveranceHospital,YonseiUniversityCollegeofMedicine,50-1Yonsei-ro,Seodaemun-gu,Seoul,03722,SouthKorea,IntJCardiovascImaging.2018Feb;34(2):293-300,PMID:28770455Conclusion:Using256-detectorrowwide-volumeCT,thesingle-beatcardiacCTisfeasibleforevaluationofAVdiseaseandthecoronaryarteries,withacceptableimagequalityandalowradiationdoseof3.75mSv.ȗɦ256-Ù<Ńƣ¨one-beatĕȷħONj!ɪ7wȵljȼǓǔ¢]ǀwȵ°OɷʩAxialorHelical?ConsiderationsforwidecollimationCTscannerscapableofvolumetricimaginginbothmodes.Lambert,JWetal.UniversityofCalifornia,SanFrancisco,505ParnassusAve,SanFrancisco,CA,94143,USA,MedPhys.2017Nov;44(11):5718-5725,PMID:Conclusion:Toensurethemostconsistentradiationdoseandimagequalityalongthescanlength,werecommendhelicalmodeforscanslongerthanthe16cmcoverageofasingleaxialsection.Forscanlengths≤16cm,axialscanningisthemostpracticaloption,withashorterscandurationandhigherdoseefficiency. ǫG≤ňɂ®\ȿǙʉàoʩ¢°OɷʩĨ-Ąɤ>16cmɂ®ǙʤNjɎŜƌĆɂ®ʅ≤ŢŪÕNjǙʘĸ≤ňşʵǦàȑkNj。APreliminaryStudyofComputedTomographyAngiographyWithinaSingleCardiacCycleinPatientsWithAtrialFibrillationUsing256-RowDetectorComputedTomography.Wen,Betal.DepartmentofRadiology,BeijingAnzhenHospital,China,JComputAssistTomogr.2018Mar/Apr;42(2):277-281,PMID:29528910Conclusion:ThisstudyshowsthatCTcoronaryangiographywithuseofanew256-rowdetectorCTinsinglecardiaccycleachievesdiagnosticimagequalitybutwithlowerradiationdoseinpatientswithAF.HeartrateorHRVhasnosignificanteffectonimagequality.ȗɦűǨǸɔŠAFĠȣ@Nj256CTone-beatCCTA ɆēƲģǙ°Oɷʩʉàoʩʇ;ĕ。 AdditionaldiagnosticvalueofCTperfusionovercoronaryangiographyinstentedpatientswithsuspectedin-stentrestenosisorcoronaryarterydiseaseprogression:advantagestudypreliminaryresults.Andreini,Detal.CentroCardiologicoMonzino,IRCCS,Milan,Italy,JournaloftheAmericanCollegeofCardiology.201871(11):p.A1635.Conclusion:TheCTPassessmentappearsmorefeasibleandmoreaccuratethantheanatomicalevaluationalonebyCCTAinpatientswithcoronarystents.WhenresultsofCCTAandCTPareconcordantthediagnosticaccuracyofthecombinedevaluationisveryhighandassociatedwithlowradiationexposure.ȗɦɪ7]ǀwȵŋżĠȣşCTP8Ɣ ɑ¢aǫċCCTA¢CTPǙȗŻȿşȦ ɪ7ǙɬŗaǫĜˉø˞ʉàoʩʇ;QuantitativemyocardialperfusionfromstaticcardiacanddynamicarterialCT.Bindschadler,Metal.DepartmentofRadiology,UniversityofWashington,Seattle,WA98195,USA,PhysMedBiol.2018May21;63(10):105020,PMID:29701608Conclusion:SCDApresentsanew,simplifiedapproachforquantitativeperfusionimagingwithanacquisitionstrategyofferingsubstantialradiationdoseandcomputationalcomplexitysavingsoverdynamicCT.ȗɦSCDAÓʩƶƟħOʼnBDZŘǙȅ|řƛZʤ）ȄǐƔwĚCTŨ1ǙʉàoʩRationaleanddesignofthePERFECTION(comparisonbetweenstresscardiaccomputedtomographyPERfusionversusFractionalflowrEservemeasuredbyComputedTomographyangiographyIntheevaluationofsuspectedcOroNaryarterydisease)prospectivestudy.Pontone,Getal.CentroCardiologicoMonzino,IRCCS,Milan,Italy,JCardiovascComputTomogr.2016Jul-Aug;10(4):330-4,PMID:27050025Conclusion:InthePERFECTIONstudy,thecomparisonbetweenFFRCTandstressmyocardialCTPwillprovideunderstandingaboutwhichtechnologyismoreaccurateforthediagnosisoffunctionallysignificantCAD.ȗɦFFRCT +÷xĨ-²tȳĜōQuantitativevs.qualitativeevaluationofstaticstresscomputedtomographyperfusiontodetecthaemodynamicallysignificantcoronaryarterydisease.Pontone,Getal.CentroCardiologicoMonzino,IRCCS,Milan,Italy,EurHeartJCardiovascImaging.2018Nov1;19(11):1244-1252,PMID:30107557Conclusion:Theadditionofstress-CTPwithvisualevaluationtocCTAimaginghassimilardiagnosticperformancewhencomparedwiththequantitativeanalysisofmyocardialperfusionbasedonTPRmeasurement. ¸!ʙ»ƶƟ。ǙĕȨƶƟÓʩ±źǡƔCCTAħOuVɶɅĚCTPDiagnosticaccuracyofsimultaneousevaluationofcoronaryarteriesandmyocardialperfusionwithsinglestresscardiaccomputedtomographyacquisitioncomparedtoinvasivecoronaryangiographyplusinvasivefractionalflowreserve.Pontone,Getal.CentroCardiologicoMonzino,IRCCS,Milan,Italy,IntJCardiol.2018Sep20.pii:S0167-5273(18)33743-4,PMID:30268383Conclusion:SimultaneousevaluationofcoronaryarteriesandmyocardialperfusionwithsinglestressacquisitionisfeasibleandithasdiagnosticaccuracyandlowEDtoidentifyfunctionallysignificantstenosisinpatientswithintermediatetohighriskforCAD.ȗɦβtȳĜǂǺǙCAD˞ ƍɶɅĚʤ）şɪ7]ǀwȵ¢ĕȨƶƟɬŗaǫCoronarycomputedtomographyangiographyforheartteamdecision-makinginmultivesselcoronaryarterydisease.Collet,Cetal.DepartmentofCardiology,AcademicMedicalCenter,UniversityofAmsterdam,Meibergdreef9,1105AZAmsterdam,theNetherlands,EurHeartJ.2018Oct11,PMID:30312411Conclusion:Inpatientswithleftmainorthree-vesselcoronaryarterydisease,aheartteamtreatmentdecision-makingbasedoncoronaryCTAshowedhighagreementwiththedecisionderivedfromconventionalcoronaryangiographysuggestingthepotentialfeasibilityofatreatmentdecision-makingandplanningbasedsolelyonthisnon-invasiveimagingmodalityandclinicalinformation. ŋ]ȵǔĠȣǙɬǒ^ȄnÓ CCTA3Țɐȇʝčū˞Ăǡ8ǙĜȳ *3ȚʝčħǁǽǙGEGSI–GemstoneSpectralImaging–Abdomen/PelvisApplicationsGSI–Abdomen/PelvisApplicationsHepatocellularnodulesinlivercirrhosis:stateoftheartevaluation(perfusionCT/volumehelicalshuttlescan/dual-energyCT,etc.).Okada,Metal.DepartmentofRadiology,KinkiUniversitySchoolofMedicine,Ohno-Higashi,Osaka-Sayama,Japan,AbdomImaging.2011Jun;36(3):273-81,PMID:21267563Conclusion:ThisarticlesummarizesthecurrentandpotentialapplicationsforperfusionCT,dual-energyCT,andVHS.CTisapowerfultoolformeasuringbodilyarchitectureandfunction.PerfusionCToffersfunctionalimagingthatcanproduceimportantdataregardingbloodflow,permeability,leakagespace,andbloodvolume.Thus,perfusionCTisfeasibleformonitoringtheresponseafterantiangiogenictherapy,suchasSorafenibtherapy.TheVHStechniquecanimagedynamicbloodflow,leadingtothenewconceptoffour-dimensionalCT,whichisamovie-likeimagewithalargevolumeofcoverage.Italsoprovidesbloodflowinformation,suchasbloodflowdirection.Therefore,thistechniqueisparticularlyusefulforobtaininginformationregardingback-flowinpatientswithvascularstenosisorocclusion.Dual-energyCTmayofferincreaseddetectionofhepaticlesionsandspecificcharacterizationintheabdominalregion,andcanimprovetheassessmentofvasculardisease.Thestudyofdual-energytechnologyhasjuststartedinclinicalsettings,therefore,thistechniquerequiresextensivestudiesfortheconfirmationofclinicalusefulness.OptimizationofimagingprotocolsforperfusionCT,dual-energyCT,andVHScanimprovetheutilityofthesetechniques.Inparticular,low-doseCTtechniqueisrequiredforfunctionalimaging,whenseveralscansofthetargetlesionandorganareperformed.Inthefuture,itwillbenecessarytoreducetheradiationdoselevelofabdominalCTimagingforavarietyofdiagnosticpurposes,althoughnewadvancedtechnologiesenablelargervolumetricdatasetsandpromisingfunctionaldatatobeobtainedusingCT.ȗɦűŔĝȗCTPȳCT¢VHSdžū¢Ƶ²ǙāNjȳǙūsð[CTPʼnBtȳĜħO+NJħY!ɐơʩƯʙĜƯƴǹʵ¢ɐØʩǙʧɘŒŀƏÀCTPʑNj!ǝƣĵɐȇNJħƚǒŐŻ(ÈȍĶˉæ)VHSijŲʓɑwĚɐơħO$NJ«țCTǙŘƋę°OÐʑȳÂʼnBɐơHĞÈɐơř ­ƏɮijŲ²Ɇ ɐȇǂǺĩʳ¹ĠȣǙ¬ơHĞƿlūNjdual-energyCT ʼn˞ȩȷǔƆd¢ȺʢǔÓĜüō§ɐȇǓǔǙţǯ¢ɪ7 ÿɺƐʹƒˆɘþƜǙǨǸŷǫɢZÿŐNjCTPdual-energy¢VHSħOɤǙ1|+ō§ʒ"ƿlŢ²ˌǔ ˆɘŅnZʉà çȇŘijŲȳÂ@NjCTɆēŨÃǙØdzŒŀ¢tȳŒŀVirtualmonochromaticspectralimagingfortheevaluationhypovascularhepaticmetastases:theoptimalmonochromaticlevelwithfastkilovoltageswitchingdual-energycomputedtomography.Yamada,Yetal.DepartmentofDiagnosticRadiology,KeioUniversitySchoolofMedicine,Shinjuku-ku,Tokyo,Japan,InvestRadiol.2012May;47(5):292-8,PMID:22472797Conclusion:VMSimagingatapproximately70keV(69-70keV)yieldedthelowestimagenoiseof