多层螺旋CT肺结节和血管的关系.pptx

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1、Multi-detectorspiralCTstudyoftherelationshipsbetweenpulmonaryground-glassnodulesandbloodvesselsEurRadiol(2013)23:3271–3277AbstractObjective:Toinvestigatetherelationshipsbetweenpulmo-naryground-glassnodules(GGN)andbloodvesselsandtheirdiagnosticvaluesindifferentiating

2、GGNs.Conclusion:DifferentGGNshavedifferentrelationshipswithvessels.UnderstandingandrecognisingcharacteristicGGN-vesselrelationshipsmayhelpidentifywhichGGNsaremorelikelytobemalignant.KeyPointsMulti-detectorCToffersnewinformationaboutground-glassnodules.Differenttypes

3、ofground-glassnoduleshavedifferentrelationshipswithvessels.Thismayhelpidentifywhichground-glassnodulesarelikelytobemalignant.IntroductionWiththeextensiveacceptanceoflow-dosemulti-detectorspiralCTinlungcancerscreening,thenumberofdetectedGGNsorfocalground-glassopaciti

4、es(fGGOs)hasdramaticallyincreased.GGNscanresultfromneoplasms,suchaspulmonaryadenocarcinoma,orbenigndiseases,suchasfocalfibrosis,inflammationoralveolarhaemorrhage.Inaddition,pre-invasiveabnormalities,includingatypicaladenomatoushyperplasia(AAH)andadenocarcinomainsitu

5、(AIS).IthasbeenreportedthattheproportionofmalignancyinGGNsishigherthaninsolidpulmonarynodules(SPNs)andthemajorityofmalignantGGNsareadenocarcinoma.Duetoimagingresemblance,however,itisextremelychallengingtodifferentiatemalignantGGNsfromtheaforementionedbenigncounterpa

6、rts.AccuratedifferentialdiagnosisofGGNswillassistphysicianstomaketreatmentdecisionsandimprovetreatmentoutcomesandprognosis.SeveralinvestigatorshavesuggestedthatanalysisofrelationshipsbetweenSPNsandsurroundingvesselscanhelppredictthelikelihoodofmalignancyinsuchnodule

7、s.TherelationshipbetweenGGNsandbloodvesselsremainsunknown.WhetherthisrelationshipcanbeutilisedtofacilitatethediagnosisofmalignantGGNsisaworthyofinvestigation.MaterialsandmethodsPatientsTheimagingdataofpatientswithpulmonaryGGNsreceivingthin-sectionmulti-detectorCTexa

8、minationatourhospitalinJanuary2011throughNovember2012wereretrospectivelyreviewed.Alllesionsweresolitaryandmostofthem(104/108)surgicallyres