User's Manual

989803173791 Rev 0.6AppendixD:GuidelinesandReferences87
12. Donotpositionelectricallyconductivematerialsacrossanexternalmetallicprosthesis
(e.g.,externalfixationdevice,cervicalfixationdevice,etc.)orsimilardevicethatisindirect
contactwiththepatient.
13. Allowonlyproperlytrainedindividualstooperatedevices(e.g.,monitoringequipment)in
theMRenvironment.
14. Follow
allmanufacturerinstructionsfortheproperoperationandmaintenanceof
physiologicmonitoringorothersimilarelectronicequipmentintendedforuseduringMR
procedures.
15. ElectricaldevicesthatdonotappeartobeoperatingproperlyduringtheMRprocedure
shouldberemovedfromthepatientimmediately.
16. Closelymonitorthepatientduringthe
MRprocedure.Ifthepatientreportssensationsof
heatingorotherunusualsens ation,discontinuetheMRprocedureimmediatelyand
performathoroughassessmentofthesituation.
17. RFsurfacecoildecouplingfailu res cancauselocalizedRFpowerdepositionlevelstoreach
excessivelevels.TheMRsystemoperatorwillrecognizesuchafailure
asasetofconcentric
semicirclesinthetissueontheassociatedMRimageorasanunusualamountofimage
non‐uniformityrelatedtothepositionoftheRFcoil.
Theadoptionoftheseguidelineswillhelptoensurethatpatientsafetyismaintained,especially
asmoreconductivematerialsand
electronically‐activateddevicesareusedinassociationwith
MRprocedures.
References
BasheinG,SyroryG.Burnsassociatedwithpulseoximetryduringmagneticresonanceimaging.
Anesthesiology1991;75:382‐3.
BrownTR,GoldsteinB,LittleJ.Severeburnsresultingfrommagneticresonanceimagingwith
cardiopulmonarymonitoring.Risksandrelevantsafetyprecautions.AmJPhysMedRehabil
1993;72:166‐7.
ChouC‐K,McDougallJA,ChanKW.Absence
ofradiofrequencyheatingfromauditoryimplants
duringmagneticresonanceimaging.Bioelectromagnetics1997;44:367‐372.
DempseyMF,CondonB.ThermalinjuriesassociatedwithMRI.ClinRadiol2001;56:457‐65.
DempseyMF,CondonB,HadleyDM.Investigationofthefactorsresponsibleforburnsduring
MRI.JMagnResonImaging2001;13:627‐631.
ECRI,HealthDevicesAlert.A
newMRIcomplication?HealthDevicesAlert.May27,pp.1,1988.
ECRI.ThermalinjuriesandpatientmonitoringduringMRIstudies.HealthDevicesAlert.1991;20:
362‐363.