利用离体狗猴模型研究声门闭合不全对发声的影响-耳鼻咽喉科学专业毕业论文

《利用离体狗猴模型研究声门闭合不全对发声的影响-耳鼻咽喉科学专业毕业论文》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、摘要变。关键词：声信号；黏膜波；声门下压万方数据Abs仃actAbstractAims：Tocomparetheacousticsignal(jitter,shimmer)andmucosalwave(amplitude，ffequency，phase)andaerodynamicsparameters(phonationthresholdpressure，phonationthresholdflow)underdifferentsub—glottalpressure(SGP)ontheexcisedcaninemodelswithdifferen

2、textentofglottalincompetence，toexploreaappropriatemomentforthetreatmentofglottalincompetence．Methods：Perturbationmeasuresofjitterpercent，shimmerpercent，nonlineardynamicmeasuresofamplitude，frequency’phasewereappliedtoanalyzethevoiceandthemucosalwavefromthestudyincluding22excise

3、dcaninelaryngeswithdifferentextentofglottalincompetenceinthehorizontalplaneandtheverticalplaneunderlkPato4kPasub．glottalpressure，atthesametime，collectingthephonationthresholdpressureandthephonationthresholdflowforeachcaninemodels．Observethesensitivityofeachparameterincludingji

4、tter，shimmer,amplitude，frequency’phasePTPandthePTFtothechangesofthesub-glottalpressureandtheextentofglottalincompetenceResultsTherewasasignificantdifferencebetweendifferentgroupsinjitter,shimmer,amplitude，frequency，PTPandPTFundervariousSGPs，inversely,therewasnosignificantdiffe

5、renceinthephase．Onthemodelswithglottalincompetenceinthehorizontalplane，wecanseeobviouschangesofthejitter,PTPandPTFbetweenthe1-2mmgroupsthanothergroups．However,onthemodelswithglottalincompetenceintheverticalplane，wecanonlyseeobviouschangesofPTPandPTFbetweenthe2-3mmgroupsthanoth

6、ergroups．Conclusions：Onthemodelswithglottalincompetenceinthehorizontalplane，thequalitativepointtochangeofkindsofparametersmaybeintheintervall-2mm；onthemodelswithglottalincompetenceintheverticalplane，thequalitativepointtochangeofkindsofparametersmaybeintheinterval2-3mln．Ingener

7、al，aerodynamicPar锄eterssuchasPTPandPTFseemsmoresensitivetOassessthevoice万方数据AbstractdisordersthanotherparametersKeyWords：acousticsignal；mucosalwave；sub-glottalpressureIV万方数据目录目录中文．I英文摘要III第一章前言。11．1声门闭合不全简介11．2声门闭合不全病理变化．21．3声门闭合不全临床治疗21．4离体狗喉实验的相关研究51．5声学参数61．6空气动力学参数。71．7黏膜波

8、皴91．8课题相关构思。10第二章实验材料和方法。122．1实验材料．122．1．1实验动物．122．1．2实验环境．12