inter+and+intraobserver+agreement+of+fai

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1、INTERANDINTRAOBSERVERAGREEMENTOFFAINameofpostgraduate：Jugjiwan．R．Y．RAMSAHANameofProfessor：DONGYUEMajor：MedicalImagingandNuclearMedicineABSTRACTPURPoSE：ToprovewhetherthereissignificantdifferencebetweenthereadingsoftwoindependentreadersandrepeatedreadingsofthesamereaderneededtOdiagnoseFemoroaceta

2、bularImpingementsyndrome(FAI)．MATERIALSANDMETHODS：ThisretrospectiveclinicalstudywasperformedwithapprovalfromtheInstitutionalReviewBoard．233patients05—85yearsold，meanage42．7)whoattendedsamehospitalbetweenMarch2010andMarch201forhippainunderwentoneormoreofthefollowingimagingexaminations：plainX．ray

3、，CTSCanandMRI．Atotalamountof466sideswereobserved．DiagnosisofFAlWasbasedupontheabsenceofanyotherdiseaseandaccordingtothefollowingradiologicalimagingcriteria：FromX—rayimages—osseousbump，pisto卜gripdeformity，femoralhead．neckoffset<9mm，figure·8configuration，posteriorwallsigntogetherwithalateralcentr

4、eedgeangle>40degrees，extrusionindex<25togetherwithalateralcentreedgeangle>40degrees．FromCTprimaryaxial，reformattedcoronalandaxialobliqueimages：OSSEOUSbump，pistol—gripdeformity，femoralhead’neckoffset<9mm．extrusionindex<25togetherwithalateralcentreedgeangle>40degrees，increasedacetabulardepth(>5mm

5、)．FromMRimages：osseousbump，pistol—gripdeformity，femoralhead-neckoffset<9mm，extrusionindex<25togetherwithalateralcentreedgeangle>40degrees．ReadingsweretakenindependentlybyreadersAandB．ReaderAtookasecondreadingafteratimelapseofonemonth．UsingSPSSstatisticalanalysissoftware，CohenKappamethodwasappli

6、edtOdeterminetheagreementbetweenthereadingsfordifferentFAIsigns2RESUL。I’S：Osseousbump，pistolgripdeformity，femoralheadneckoffset，posteriorwallsignwithlateralcenteredgeandextrusionindexwithlateralcenteredgewerethesignswhichdemonstratedthehighestagreementinbothinterandintraobserverreadings．Figureo

7、f8signshowedsubstantialagreementwhiletheacetabulardepthsignprovedtohaveafairtoslightagreementinbothinterandintraobserverreadings．CoNCLUSIoN：Osseousbump，pistolgripdeformity，femoralheadneckoffset，posteriorwallsignwithlateralcentered