Accuracyofcrescentsignonocularultrasoundindiagnosingpapilledema
WorldJournalofMethodology
頁(yè)數(shù): 4 2017-09-26
摘要: AIMTostudytheusefulnessoforbitalultrasonographyinthediagnosisofpapilledema.METHODSFiftypatientswhowerereferredtotheneurophthalmologyclinicandclinicallysuspectedtohavepapilledemawereselected.Thorough,clinicalexaminationwithslitlampbiomicroscopyandvisualacuityassessmentwasdone.Thesepatientsunderwentultrasonographytodemonstratethecrescentsign.Thepatientswerefurtherevaluatedwiththeneurologistandmagneticresonanceimaging(MRI)thusconfirmingthediagnosisofpapilledema.Theresultsofourultrasonographicevaluationwerecorrelatedwithfinaldiagnosisafterthoroughclinicalevaluation,imagingandtheneurologistsopinion.RESULTSOutof50patientsdiagnosedhavingpapilledemaonMRI,46(92%)showedcrescentsignonBscanultrasonography.Headachewasmostcommonpresentingcomplaintin47(94%)andidiopathicintracranialhypertensionwasmostcommonunderlyingcauseofpapilledemain30(60%)cases.CONCLUSIONCrescentsignseenonultrasonographyisasensitivetoolfordiagnosisofpapilledema.Itiscosteffective,lesscumbersomeandeffectivetooltodifferentiatebetweenpapilledemaandpseudopapilledemabeforesubjectingthepatientstocostlyinvestigationslikeMRI.ApositivecrescentsignshouldalwaysbefollowedbyMRItofindoutthecauseofpapilledema. (共4頁(yè))