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1、OriginalArticleSingaporeMedJ2009;50(2):193High-resolutioncomputedtomographyfeaturesinpatientswithchronicobstructivepulmonarydiseaseGuptaPP,YadavR,VermaM,GuptaKB,AgarwalDABSTRACTKeywords:chronicbronchitis,chronicobstructiveIntroduction:Inrecentyears,therehasbeenpulmonarydisease,emph
2、ysema,high-resolutionincreasinginterestindiagnosingvariouscomputedtomographycomponentsofchronicobstructivepulmonarySingaporeMedJ2009;50(2):193-200disease(COPD)usinghigh-resolutioncomputedtomography(HRCT).ThepresentstudywasINTRODUCTIONundertakentoevaluateHRCTfeaturesinpatientsChroni
3、cobstructivepulmonarydisease(COPD)isawithCOPD.diseasestatecharacterisedbyanairflowlimitationthatisnotfullyreversible.TheairflowlimitationisusuallyMethods:40malepatientswithCOPD(age40bothprogressiveandassociatedwithanabnormalyearsorolder)andwithasignificantsmokinginflammatoryrespons
4、eofthelungstonoxiousparticleshistory(20pack-yearsormore)wereincludedinorgases.(1)VariousdisordersincorporatedunderCOPDthestudy.TheywereevaluatedforHRCTfeaturesincludeemphysema,peripheralairwaysdiseaseandincludingvascularattenuationanddistortion,chronicbronchitis.Asthedefinitionofem
5、physemamosaicattenuationpattern,directlyvisiblesmallisapathologicalone,itrequireshistopathologicalairways,lowattenuationareasofemphysemaandexaminationtoauthenticatethedisease,whichisnotmeasuresofhyperinflationofthelungs:trachealusuallycarriedoutandoftennotconsentedtobytheindex,ster
6、no-aorticdistance,thoraciccageratiopatient.Moreover,duringtheearlystagesofCOPD,andthoraciccross-sectionalarea.conventionalspirometrydoesnotrevealanyabnormalityastheearliestchangesinthesepatientsinvolvealveolarDepartmentofResults:Thetrachealindexrangedfrom0.46wallsandsmallairways,an
7、damodestincreaseinRespiratoryMedicine,PostgraduateInstituteto0.94;Saber-sheathtracheawasfoundin14peripheralairwaysresistanceisnotreflectedinsuchofMedicalSciences,patients.Themeanthoraciccageratioattwospirometricmeasurements.(2)Duringthelastfewdecades,9J/17MedicalEnclave,levels,cari
8、naand5cmbelowcarina,were0.
