电阻抗成像技术的原理及其发展

1)EIT..EIT.EITEIT.ACT3EIT.(EIT)TM938.84EIT(ElectricalImpedanceTomography)..1EIT1.1EITEIT...EIT(1)(2)(3)VJ;.FEMEITF()=VJF:V.2)(31EIT.1EIT.1EIT1.2EITEITHadamard.1EITinherentill-posednessEIT....10%EIT0.1%.EIT.EIT70808090.EIT3EIT.2.1EIT.S.EITBarber.23...3,.4EIT.Newton-Raphson46.7,Newton89,10..EIT.NewtonJacobiP×NPN.8NewtonJacobi.NewtonEIT.EIT..EIT.6Newton-Raphson.2.2EIT..EIT.IsaacsonD111214EIT...SNR.EIT.13Walsh14.VLSIDSPEIT.SNR.DSPEIT.EITDSP.SheffieldAPT(AppliedPotentialTomography)DSP.15DSPMotorolaDSP9600EIT.EITEIT16..2.3EITEITWisconsinRenselaerSheffield.WisconsinRenselaer.ACT319933EIT.SheffieldEIT.UMISTWisconsin.EIT..80EIT89,.3EIT3.1EITACT3ACT3AdaptiveCurrentTomographyRensselaer1993EIT17.3216bit1133ms..16bitSNR104dB.SNRDSP.PROMMDAC.16bit64MACT3.ACT30.5mA.3.2EIT1)Rosell18EIT2002000/cm2.EIT...19.2)CMRREIT.CMRR.1mA0.052mV0.1%CMRR135dB..3)EIT.2k..01k64M16bit(R=(216-1)×1k).4)CfCf0.2pF.Cf.A/D..4EIT.IEEETransactionsonBiomedicalEngineeringIEEETransactionsonMedicalImagingEIT.EIT.1SaacsonD,IsaacsonEL.CommentonCalderon'spaper:Onaincerseboundaryvalueproblem.MathComput,1989,52:5535592BrownBH,BarberDC.Appliedpotentialtomography.JPhysESciInstrum,1984,17:7237333ShahidiAV.Impedancetomographycomputionalanalysisbasedonfiniteelementsmodelsofacylinderandahumanthorax.AmBiomedEng,1995,23:61694WebsterJG.ElectricalImpedancetomography.BristolEngland:AdamHilger,19905YorkeyTJ,WebsterJ,TompkinsWJ,etal.Comparingreconstructionalgorithmforelectricalimpedancetomography.IEEETransBiomedEng,1987,BME-34(11):8438526WooEJ,HuaP,WebsterJG,etal.Arobustimagereconstructionalgorithmanditsparallelimplementationinelectricalimpedancetomography.IEEETransMedImaging,1993,MI-12(2):1371467KyriaconGA.Areconstructionalgorithmofelectricalimpedancetomographywithoptimalconfigurationofthedrivenelectrodes.IEEETransMedImaging,1993,MI-12(4):4304388,,...199716(2):179,,..,199523(7):111410Issacsonetal.Commentonreconstructionalgorithms.ClinPhysPhysiolMeas,1992,13(supplA):838911IssacsonD.Distinguishabilityofconductivitiesbyelectriccurrentcomputedtomography.IEEETransMedImaging,1986,MI-5(2):919512GisserDG,IsaacsonD,NewellJC,etal.Currenttopicsinimpedanceimaging.ClinPhysPhysiolMeas,1987,8(supp1A):394613HuaP,WebsterJG,TompkinsWJ,etal.Improvedmethodtodetermineoptimalcurrentinelectricalimpedancetomography.IEEETransMedImaging,1992,MI-11(4):48849514WooEJ,HuaP,TompkinsWJ,etal.Walshfunctioncurrentpatternsanddatasynthesisforelectricalimpedancetomography.IEEETransMedImaging,MI-11(4):55455915LyonGM,OakleyJP.AdigitalsignalprocessorbasedarchitectureforEITdataaquisition.In:ECAPT,ed.ProcessTomographyastrategyforIndustrialExploitation.Manchester:TheCastlefieldHotel,1992.545916GencerNG,IderYZ,WilliamsonSJ.Electricalimpedancetomograph:induced-currentimagingachievedwithamultiplecoilsystem.IEEETransBiomedEng,1996,43(2):13914917CookRD,SaulnierGJ,GisserDG,etal.ACT3:ahigh-speed,high-precisionelectricalimpedancetomograph.IEEETransBiomedEng199441(8):71372118RosellJ,MurphyD,PallasR,etal.Skinimpedancefrom1Hzto1MHz.IEEETransBiomedEng,1988,35(7)64965119HuaP,WooEJ,WebsterJG,etal.Usingcompoundelectrodesinelectricalimpedancetomography.IEEETransBiomedEng,1993,40(1):2934TheoryandDevelopmentofElectricalImpedanceTomographyTechnologyChengJikuanSunJinpingDuYanLiuZhongkanBeijingUniversityofAeronauticsandAstronautics,Dept.ofElectronicEngineering)AbstractElectricalImpedanceTomography(EIT)isanewtechniquethatformsimagesofelectricresistivityorconductivitywithinthebodythroughmeasuringthecurrentorthevoltageofthesurface.Asamathematicalphysicsinverseproblem,EITisadevelopingtechniqueonitsownfeatureanddifficulty.ThispapergivesanintroductionoftheEITtechnologyindetails.Itincludestheprimarytheory,technicaldifficulty,systemanalysisaswellastherecentresearchbackgroundandtrendallovertheworld.ItintroducesACT3togiveasimpleanalysisrealizingtheEITsystem.Keywordsimageprocessing;reconstructiondataacquisitioninverseproblemElectricalImpedanceTomography(EIT):1997-01-07581000831)电阻抗成像技术的原理及其发展作者：程吉宽作者单位：刊名：北京航空航天大学学报英文刊名：年，卷(期)：1998(2)被引用次数：18次引证文献(18条)1.黄嵩.张占龙.罗辞勇.何为电阻抗静态成像中混合正则化算法抗噪性能的仿真研究[期刊论文]-中国生物医学工程学报2009(2)2.田明武.李碧雄水泥浆体阻抗特性的初步研究[期刊论文]-四川建筑2009(2)3.胡小波.陈香才.郭方方乳腺电阻抗成像非均匀介质电场的初步分析[期刊论文]-中国医学物理学杂志2008(1)4.黄嵩.张占龙.姚骏.何为基于混合正则化算法的颅内异物电阻抗成像仿真研究[期刊论文]-中国生物医学工程学报2007(5)5.胡小波.陈香才一种乳腺电阻抗断层成像模型的建立[期刊论文]-中国医学物理学杂志2007(2)6.黄嵩.何为电阻抗成像中变差正则化算法的研究[期刊论文]-生物医学工程学杂志2006(6)7.黄嵩.何为电阻抗成像中混合罚函数正则化算法的仿真研究[期刊论文]-计算机仿真2006(4)8.张虹淼基于磁声耦合的无损神经电流检测技术的模型与实验研究[学位论文]硕士20069.李翔基于磁声电相互耦合的生物组织成像方法研究[学位论文]硕士200610.王戬电阻抗成像算法的研究[学位论文]硕士200611.傅林生物组织磁聚焦电导率成像系统硬件实现与反演算法[学位论文]博士200612.耿跃华.徐桂芝.吕殿利反投影断层阻抗成像技术的图像处理与分析[期刊论文]-河北工业大学学报2005(z1)13.耿跃华反投影断层阻抗成像的图像处理与分析[学位论文]硕士200514.杨旭头部组织电导率分布对等效偶极子定位影响的研究[学位论文]硕士200515.向胜昭基于三维磁场聚焦技术的磁感应成像系统中激励线圈的设计[学位论文]硕士200516.黄嵩.何为.H.Singer电阻抗成像中Jacobi矩阵的一种快速仿真算法[期刊论文]-计算机仿真2004(9)17.刘军.李光.陈裕泉生物电流检测和组织功能成像的新技术[期刊论文]-国外医学(生物医学工程分册)2003(4)18.董浩斌.王传雷浅议高密度电法几个问题[期刊论文]-地质与勘探2003(z1)本文链接：