msct后处理定量技术对尘肺观察对象的应用研究

《msct后处理定量技术对尘肺观察对象的应用研究》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。

1、重庆医科大学硕士研究生学位论文结论1．CT数字化的定量分析，是一种直接非损伤性的量化测定方法，不仅较视觉评定更为准确，且能减少读片者间的差异。2．MSCT后处理定量技术测得的定量指标能在一定程度上了解尘肺观察对象早期肺纤维化进程。3．MSCT后处理定量技术研究尘肺观察对象，检查方便、可重复性强，能够做到形态、定量，定位三者兼顾。4．MSCT后处理定量技术测得的定量指标与临床肺功能检查获得指标二者进行相关分析，能够反映肺功能受损程度。关键词尘肺观察对象，定量后处理技术，像素指数，平均肺密度，肺功能重庆医科大学硕士研究生学位论文MSCT

2、PoST-PROCESSINGTECHNOLOGYONTHEQUANTITATIVEAPPLICATIONOFPNEUMOCONIOSISOBSER、厂ATIONOBJECTSABSTRACTObjective：Multislicecomputedtomography(ct)imaging(multi—spiralcomputedtomography，MSCT)quantitativeofpost-processingtechniqueindiagnosisofpneumoconiosisobservationobjectvalue

3、，andthepost-processingofquantitativedeterminationoftechnicaldataandclinicalpulmonaryfunction，(pulmonaryfunctiontest，PFT)forthedeterminationofindexcorrelationanalysisbetweenthem．MaterialsandMethods：To-useGELightSpeedl6一CTscannertostudy：(1)selectionisprovidedbythecenters

4、fordiseasecontrolinchongqingbythehighkvchestradiographdiagnosedpneumoconiosisobservationobjectofcoaldust，silicadustcontactwith60cases，diagnosticcriteriaforthediagnosisstandardofthePeople’SRepublicofChinanationaloccupationalhealthstandards(GBZ70—2009)，asateam；(2)select4

5、0menascontrolgroup，nodustexposurehistory，conventionalX—raychestradiographyandclinicalcardiopulmonaryfunctionwithoutdmnagethehealthofthemaleasthenormalcontrolgroup．Twogroupsofsubjectssignedinformedconsentfonn．Pneumoconiosisobservationgroupofobjectsaredoingclinicalpuhnon

6、aryfunctionexamination，(puhnonary)重庆医科大学硕士研究生学位论文functiontest，PFT)．Twogroupsintheimagepost-processingworkstationforquantitativedeterminationofdata；Thelastobjectofpneumoconiosisobservationgroupofmeasurementdataandclinicalpulmonaryfunctionexaminationindexcorrelationanaly

7、sis．Results：1．MSCTpost-processingtechniquesofpneumoconiosisquantitativeobservationobjectdifferentanatomicallevel：(1)Aorticarchroof,trachealsubcarinal6cmlevel，level2observationin10-832一一352huCTthresholdrange，pneumoconiosispixelindex(PI)oftheobservedgroupwerehigherthanno

8、rmalcontrolgroup(2)Tracheapromontory，subcarinal3cmlevel，level2observmionin11—880一-880．huCTthresholdrange，pneumoconios