学科分类
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142 个结果
  • 简介:许多图象分割解决方案是基于问题的。医药图象在感兴趣的目标之中有很类似的灰水平和质地。因此,尽管有研究,自从最后几十年起,做,医药图象分割要求改进。我们设计一个自我学习的框架从计算断层摄影术(CT)图象同时提取兴趣的几个目标。我们的分割方法有基于加强学习的一个学习阶段(RL)系统。每个RL代理人研究一幅输入图象的一幅特别亚图象在它为每个目标发现合适的价值。RL系统是由状态,行动和报酬定义。我们在亚图象为每个状态定义一些行动。报酬功能为RL代理人的每个行动计算报酬。最后,从发现兴趣目标的所有状态,珍贵信息将在Q矩阵被存储,最后的结果能在类似的图象的分割被使用。头部的CT图象的试验性的结果超过95%表明了分割精确性。

  • 标签: 医学图像分割 学习方法 软件AGENT 强化 加固基础 CT图像
  • 简介:Currentlytheclinicalmanagementofbreastcancerreliesonrelativelyfewprognostic/predictiveclinicalmarkers(estrogenreceptor,progesteronereceptor,HER2),basedonprimarytumorbiology.Circulatingbiomarkers,suchascirculatingtumorDNA(ctDNA)orcirculatingtumorcells(CTCs)mayenhanceourtreatmentoptionsbyfocusingontheverycellsthatarethedirectprecursorsofdistantmetastaticdisease,andprobablyinherentlydifferentthantheprimarytumor'sbiology.Toshiftthecurrentclinicalparadigm,assessingtumorbiologyinrealtimebymolecularlyprofilingCTCsorctDNAmayservetodiscovertherapeutictargets,detectminimalresidualdiseaseandpredictresponsetotreatment.Thisreviewservestoelucidatethedetection,characterization,andclinicalapplicationofCTCsandctDNAwiththegoalofprecisiontreatmentofbreastcancer.

  • 标签: 乳腺癌 肿瘤生物学 CTDNA 治疗方案 活检 液体
  • 简介:MorningsatNyinpaVillageareenlivenedbywildfragrantflowersincrystallinedewdrops.Manyoftheseplantsareofgreatvalueintraditionalmedicine.Theirflowers,fruits,leaves,stems,androotscanallbeusedintheseherbalremedies.Onthisday,wewereleavingthisvillagerichinmedicinalherbalresourcestoembarkonalongtripto

  • 标签: village HERBAL crystalline LEAVING FRUITS FLOWERS
  • 简介:AIM:Tocombinecommunityandhospitalservicesinordertoenableimprovementsinpatientmanagement,anintegratedgastroenterologyservice(IGS)wasestablished.METHODS:Referralpatternstospecialistclinicswereoptimized;openaccessrouteforendoscopicprocedures(includingesophago-gastro-duodenoscopy,sigmoidoscopyandcolonoscopy)wasestablished;familyphysicians’knowledgeandconfidencewereenhanced;directcommunicationlinesbetweenexpertsandprimarycarephysicianswereopened.Continuingeducation,guidelinesandagreedinstructionsforreferralwerepromotedbytheIGS.SixqualityindicatorsweredevelopedbytheDelphimethod,rigorouslydesignedandregularlymonitored.Improvementwasassessedbycomparing2010,2011and2012indicators.RESULTS:Anintegrateddeliverysysteminaspecificmedicalfieldmayprovideasolutiontoafragmentedhealthcaresystemimpairedbyalackofcoordination.InthispaperwedescribeanewintegratedgastroenterologyserviceestablishedinApril2010.Waitingtimeforproceduresdecreased:3moinApril30th2010to3wkinApril30th2011andstayedbetween1-3wktillDecember30th2012.Averagecostforpatient’svisitdecreasedfrom691to638NIS(adecreaseof7.6%).Sixhealthindicatorswereimprovedsignificantlycomparing2010to2012,2.5%to67.5%:Bonedensitometryforpatientswithinflammatoryboweldisease,preventivemedicationsforhighriskpatientsonaspirin/NSAIDs,colonoscopyfollowingpositivefecaloccultbloodtest,gastroscopyinBarrett’sesophagus,documentationoffamilyhistoryofcolorectalcancer,andcolonoscopyinpatientswithafamilyhistoryofcolorectalcancer.CONCLUSION:EstablishmentofanIGSwasfoundtoeffectivelyimprovequalityofcare,whilebeingcosteffective.

  • 标签: GASTROENTEROLOGY DIRECT REFERRAL ENDOSCOPY Communi
  • 简介:AccordingtoPeople'sDaily,70%oftheareasinChinahavepossessedstandardizedmedicalinstitutionsatcounty,town/townshipandcommunitylevels.Alltheplaceshaveprovidedabout2millionperson-timeson-jobtrainingforthegrassrootsmedicalinstitutions.Asaresult,theconditionsofmedicalcareatthegrassrootslevehavebeenobviouslyimproved.In2011,morethanhalfofthe

  • 标签: 医疗机构 中国地区 在职培训 医疗条件 标准化
  • 简介:联系精索静脉曲张的男不孕古典主义地用外科被管理了或帮助了繁殖技术。与在联系精索静脉曲张的不孕作为一个pathophysiological因素增加氧化应力的证据,医药治疗特别抗氧化剂可能与更低的风险成为一种治疗选择。我们在归因于精索静脉曲张的男不孕的管理在各种各样的医药代理人的角色上考察了存在文学。医药治疗典型地与外科对药治疗作为辅助治疗与安慰剂,药对手术的(b)比较,和药的(c)比较处于象二药或一药的(a)比较那样的三种不同状况被评估独自一个。由于数据的异质和进行得好的研究的缺乏,有不够的数据与联系精索静脉曲张的不孕为人推荐医药治疗的平淡的使用,外科仍然是选择的处理。怀孕和实时出生率通常没在精子参数在大多数研究和仅仅的改进被报导或抗氧化剂能力是不够的支持它的平淡的使用。抗氧化剂治疗由于它的理论利益,从现出症状之前的潜的研究的数据,和主要副作用的缺乏是一种潜在的选择。有在精索静脉曲张的外科的修理以后的抗氧化剂的辅助治疗可以改进结果并且是为进一步的研究的一个潜在的区域。

  • 标签: 抗氧化剂治疗 药治疗 男不孕 精索静脉曲张
  • 简介:Chinawillfaceareboundofgeneticallytransmitteddiseasesinnewbornsinthreetofiveyearsifthetrendofrapidlydecliningpre-maritalphysicalexaminationsisnotreversed,accordingtoGuXiulian,ViceChairmanoftheStandingCommitteeoftheNationalPeople'sCongress.

  • 标签: 中国 婚检 疾病预防 婚姻制度
  • 简介:Studyofimageenhancementshowsthatthequalityofimageheavilyreliesonhumanvisualsystem.Inthispaper,weapplythisfacteffectivelytodesignanewimageenhancementmethodformedicalimagesthatimprovesthedetailregions.First,theeyeregionofinterest(ROI)issegmented;thentheUn-sharpMasking(USM)isusedtoenhancethedetailregions.Experimentsshowthattheproposedmethodcaneffectivelyimprovetheaccuracyofmedicalimageenhancementandhasasignificanteffect.

  • 标签: 医学图像增强 人眼视觉特性 感兴趣区域 视觉系统 增强方法 区域分割
  • 简介:Acompleteanddetailmethodisdescribedtogetdigitallyreconstructedradiographs(DRRs).CastingraystotraverseCTimages,computingCTvaluesofresamplepointsbyinterpolation,thenconvertingCTvaluetoitsattenuationcoefficientbyusingsimplifiedsegmentfunction.Finally,DRRsenhancementismadetogetthebetterdisplayofregionofinterest(ROI),andanewwayisadoptedtoadjustthecustomizationcoefficient.TheexperimentalresultsshowthattheproposedmethodiseffectiveingeneratingthesatisfiedDRRs.

  • 标签: CT图像 X线片 医学 感兴趣区域 插值计算 衰减系数
  • 简介:ThisstudyconcernssecurityissuesoftheemergingWirelessBodySensorNetwork(WBSN)formedbybiomedicalsensorswornonorimplantedinthehumanbodyformobilehealthcareappli-cations.Anovelauthenticatedsymmetric-keyestablishmentschemeisproposedforWBSN,whichfullyexploitsthephysiologicalfeaturesobtainedbynetworkentitiesviathebodychannelavailableinWBSNbutnototherwirelessnetworks.Theself-definedIntrinsicSharedSecret(ISS)isusedtoreplacethepre-deploymentofsecretsamongnetworkentities,whichthuseliminatescentralizedservicesorau-thoritiesessentialinexistingprotocols,andresolvesthekeytransportprobleminthepuresymmet-ric-keycryptosystemforWBSNaswell.Thesecuritypropertiesoftheproposedschemearedemon-stratedintermsofitsattackcomplexityandthetypesofattacksitcanresist.Besides,theschemecanbeimplementedunderalight-weightwayinWBSNsystems.DuetotheimportanceoftheISSconcept,theanalysisonusingfalseacceptance/falserejectionmethodtoevaluatetheperformanceofISSforitsusageintheschemeisalsodemonstrated.

  • 标签: 医疗体域传感器网络 安全认证 对称密钥建立 生物医学传感器
  • 简介:IntroductionTheMedicalResearchFoundationistheMedicalResearchCouncil's(MRC)independentlymanagedcharity.Itreceivesfundsfromthegivingpublictosupportmedicalresearch,training,publicengagementanddisseminationofknowledge.Sinceitwasfirstestablishedin1920,theMRChasbeenabletoacceptcharitablebequests,endowmentsanddonationsfromthepublictocontributetowardsthecostsoftheresearchthatitundertakes.TheMRCregisteredthesecharitablefundswiththeCharityCommissioninthelate1960'sanditscharity-theMedicalResearchFoundation-hasbeensuccessfullysupportingmedicalresearchforover80years.Duringtheplanningphase,thedeliveryplanhelpsyoutoputyourinitialthoughtsandideasintoaformatthatisstraightforward.Thisoverviewwillenableyoutodeviseappropriatelearningstrategiesforyourtargetaudience,matchthelearningoutcomes,identifymaterialsandresources,andestimatetimeperiodsforlearningactivities,suchasdemonstrations,practiceandconsolidation,collaborationandquestiontime.

  • 标签: 理事会 医学 交付 学习活动 慈善机构 公众参与
  • 简介:InAugust2011,theSangzhiCountygovernment,HunanProvince,adoptedaseriesofnewhealthcarepoliciesasanationalpilotoftheNewCooperativeMedicalScheme(referredtoas2011NCMS).Thesepoliciesweredesignedtofurtherresolveillness-ledpovertyandthepoorstateofhealthcareinthelocalarea.TheprogramhadapositiveimpactandspreadtootherregionsinHunanProvince.Thispaperwilldiscusstheprogressmadeasaresultofthepoliciesandseveralissuesthatchallengetheschemeinpractice.Atotalsampleof1212individualsand303householdswereincludedintheanalysis,and98interviewswereconductedwithpeoplerelatedtothescheme.Ourmajorfindingsindicatethatthe201!NCMShassignificantlyreducedtheout-of-pocketmedicalpaymentofruralresidents,andalsoincreasedthetownshiphospitals’patientflow.However,themedicalschemestillfacesmanychallengingissuesduringtheimplementation.WiththeincreasinginterestamongtheChinesepolicymakersinstrengtheningandpromotingtheSangzhiModel,theimpactsoftheschemedeservegreaterattentioninpracticesoastofurtherimproveNCMSinruralChina.

  • 标签: NEW COOPERATIVE MEDICAL SCHEME ENROLLMENT rate
  • 简介:Currentmedicalstudentsneedanongoingbasisofupdatedskillsandknowledgetobecompatiblewiththedevelopmentofhealthcaresystemsinthehospitals.Thestudentengagementinthinkingaboutthebetterwayforlearninganewinformationandskillswillcreatesafeandcomfortablelearningenvironment,whichactasagoldenkeytostartingpoint,leadingtohighestqualitylearningoutcomes.Themedicaleducationinstructorshouldrecognizethee-learningtechnologygadgetsuitedtherequiredlearningenvironmentandcompatiblewithintendedlearningobjectivesforeachlecture.Nodoubtthattheinstructorplaysavitalroleinthestudentsupport,whichneedsanintellectualeffortstoprovidethemwithappropriateneedsandguidestudentstobecomeactiveandcreativemembersintheuniversity,theirprofession,andcommunity.Thisresearchaimstofindoutwhatistheimpactofelectroniccourses(e-courses)ininstructionalsupport,toincreasemedicalstudents’enthusiasm.AcrosssectionaldescriptiveanalyticalstudyconductedinKingSaudUniversity,Riyadh,KingdomofSaudiArabia(KSA),thestudypopulationwasundergraduateradiologicalsciencesstudents.Awell-designedquestionnairewasdistributedtostudentsandthenreceivedtheirfeedback.Inthefirstpartofthecourse,theyexposedtotraditionalmethods,whileintheremainingpart,thee-learningandinteractivelectureswereintroduced.StatisticalanalyseswereperformedwithStatisticPackageforSocialScience(SPSSsoftwareversion20).Outof50students,31(62.0%)preferredtheinteractivepowerpointsfiles,33(66.0%)moreenthusiastictouselearningmanagementsystem(LMS)tofindouttheircoursecontents.Regardingthelevelofstudentssatisfactionindifferenttypesofpre-test,30(60.0%)studentswereunsatisfiedwhenusingpaperandpenstyle,while38(76.0%)weresatisfiedwhenperforminganelectronictests.Twenty-nine(58.50%)favouredaninteractivemindmapforeachlecturecontents.Majorityofstudentsdecidedthatbothclassicalandelectronicinst

  • 标签: component e-courses instructional SUPPORT RADIOLOGICAL SCIENCES