简介：AIM:Toinvestigatethediagnosticaccuracyofthemeanplateletvolumeandplateletdistributionwidthinacuteappendicitis.METHODS:Thisretrospective,case-controlledstudycompared295patientswithacuteappendicitis(Group?Ⅰ),100patientswithotherintra-abdominalinfections(GroupⅡ),and100healthyindividuals(GroupⅢ)betweenJanuary2012andJanuary2013.Theage,gender,andwhitebloodcellcount,neutrophilpercentage,meanplateletvolume,andplateletdistributionwidthvaluesfrombloodsampleswerecomparedamongthegroups.StatisticalanalyseswereperformedusingSPSSforWindows21.0software.Inaddition,thesensitivity,specificity,positiveandnegativepredictivevaluesandlikelihoodratios,anddiagnosticaccuracywerecalculated.RESULTS:Themeanagesofpatientswere29.9±12.0yearsforGroup?Ⅰ,31.5±14.0yearsforGroupⅡ,and30.4±13.0yearsforGroupⅢ.Demographicfeaturessuchasageandgenderwerenotsignificantlydifferentamongthegroups.Whitebloodcellcount,neutrophilpercentageandplateletdistributionwidthweresignificantlyhigherinGroup?Ⅰ?comparedtogroupsⅡandⅢ(P<0.05).Diagnostically,thesensitivity,specificityanddiagnosticaccuracywere73.1%,94.0%,and78%forwhitebloodcellcount,70.0%,96.0%,and76.0%forneutrophilpercentage,29.5%,49.0%,and34.0%formeanplateletvolume,and97.1%,93.0%,and96.0%forplateletdistributionwidth,respectively.ThehighestdiagnosticaccuracydetectedwasforplateletdistributionwidthbetweenGroup?Ⅰ?andGroupⅢ(P<0.01).CONCLUSION:Plateletdistributionwidthanalysiscanbeusedfordiagnosisofacuteappendicitiswithoutrequiringadditionaltests,thusreducingthecostandlossoftime.

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简介：Nowadays,numerouscommercialelectrocardiographs(ECG)have500Hzoutputsamplingrate,i.e.,2mscorrespondingsamplinginterval.Medicalworkerswhohavenobackgroundofsignalprocessingmayworryaboutwhethersuchlow500Hzoutputsamplingratedatacouldsupporthigh-precisionestimationofelectrocardiogramparametersbybeingup-sampled.Withintentiontoclarifytheproblemtothemedicalworkers,thispapertakessomesimulatingexperimenttoillustrateit.TheexperimentchosetheRRintervalandRpeakamplitudeasrepresentativeparameterstobeestimated.Theobtainedresultswereasfollows:forRRintervalparameter,itsestimationerrorcanbeloweredtobelow0.3msbyup-sampling;forRpeakamplitude,itsestimationerrorcanbereducedtobelow2.0μVbyup-sampling.ItisbelievedthatotherECGparameterestimationcanalsobeimprovedsimilarlybyup-sampling500Hzdata.

简介：[摘 要]多功能参数监护仪作为一种辅助治疗的医疗设备在各级医院中广泛使用，本文总结了多功能参数监护仪的几种常见故障及处理方法。