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1、MagneticResonanceImaging-CalvinCollege-MindsInThe…在磁共振成像-加爾文大學(xué)的頭腦…OutlineOverview&HistoryImagingPrinciplesAdvancedTechniquesImagingHardwareSafetyApplicationsOverview&HistoryUsestrongmagneticfieldtoscananobjectandproduceanimageNoradiationUtilizemagnetismofinternalparticles1973–Backproje
2、ctionimagingtechnique1975–Phaseandfrequencyencoding,FourierTransform1977–Imagingofthewholebody,Echo-planarimaging:real-timemovieimaging1993–FunctionalMRIImagingHardwareMagnetsSuperconductingStrongestElectromagnetCurrentflowsinwirecoiltocreateamagneticfieldNearlyzeroresistanceinwireatte
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5、iscoveredMostpregnantwomenprohibitedfromundergoingMRimagingtopreventpossibledamagetofetusMostpeoplewithmetalimplantsprohibitedPacemakers-malfunctionduetomagnetCerebralaneurysmclip-magnetcouldmoveclipMostorthopedicimplantssafebecausetheyarefirmlyembeddedinboneRFcoilfailurecanseverelybur
6、npatientEquipmentExtremelypowerfulmagnetsNoferromagneticobjectsallowednearscannerExampleBucketpulledoffgroundandintomagnetFullyloadedpalletjacketpulledintoboreFixproblemPullobjectoffmagnetUseforcefuldevicesuchasawinchTurnoffmagnetcompletelyApplicationsBrainTumorsAneurysmsBloodclotsSpin
7、eIndividualvertebraeKneesShouldersHipsPreventstrokesDiagnoseMultipleSclerosisQUESTIONS?醫(yī)院固定資產(chǎn)分類02專用設(shè)備201醫(yī)用電子儀器20101用于心臟的治療、急救裝置植入式心臟起搏器、體外心臟起搏器、心臟除顫器、心臟調(diào)搏器、主動脈內(nèi)囊反搏器、心臟除顫起搏儀20102有創(chuàng)式電生理儀器及創(chuàng)新電生理儀器體外震波碎石機(jī)、病人有創(chuàng)監(jiān)護(hù)系統(tǒng)、顱內(nèi)壓監(jiān)護(hù)儀、有創(chuàng)心輸出量計、有創(chuàng)多導(dǎo)生理記錄儀、心內(nèi)希氏束電圖機(jī)、心內(nèi)外膜標(biāo)測圖儀、有創(chuàng)性電子血壓計20103有創(chuàng)醫(yī)用傳感器各種植入體內(nèi)的醫(yī)用傳感
