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DamageinTransportation

DAMAGEINTRANSPORTATION

Allpackagesshouldbecloselyexaminedattimeofdelivery.Ifdamageisapparent,havenotation“damageinshipment”writtenonallcopiesofthefreightorexpressbillbeforedeliveryisacceptedor“signedfor”byaGeneralElectricrepresentativeorahospitalreceivingagent.Whethernotedorconcealed,damageMUSTbereportedtothecarrierimmediatelyupondiscovery,orinanyevent,within14daysafterreceipt,andthecontentsandcontainersheldforinspectionbythecarrier.Atransportationcompanywillnotpayaclaimfordamageifaninspectionisnotrequestedwithinthis14dayperiod.

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Rev.June13,2006

LANGUAGEPOLICYFORSERVICEDOCUMENTATION(DOC0620154REV1)

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Товаупътванезаработаеналичносамонаанглийскиезик.

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Неизползвайтеоборудването,предидастесеконсултиралииразбралиупътванетозаработа.

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Cemanueld’installationetdemaintenanceestdisponibleuniquementenanglais.

Siletechniciend'unclientabesoindecemanueldansunelangueautrequel'anglais,ilincombeauclientdelefairetraduire.

Nepastenterd'intervenirsurleséquipementstantquecemanueld’installationetdemaintenancen'apasétéconsultéetcompris.

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?????????????????????.

???????????????????????,????????????????????.

??????????????????????????????????????.

?????????????????,?????,????????????????,???????????????????.

?īapkopesrokasgrāmatairpieejamatikaiang?uvalodā.

Jaklientaapkopessniedzējamnepiecie?amainformācijacitāvalodā,klientapienākumsirnodro?ināttulkojumu.

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On?ocumprimentodesteavisopodecolocaremperigoaseguran?adotécnico,dooperadoroudopacientedevidoachoqueseléctricos,mecanicosououtros.

Acestmanualdeserviceestedisponibildoar?nlimbaenglez?.

Dac?unfurnizordeserviciipentruclien?inecesit?oalt?limb?decatceaenglez?,estededatoriaclientuluis?furnizezeotraducere.

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TABLEOFCONTENTS

Section1–Introduction 9

ProductIdentificationandShippingList 9

Compatibility 9

RelatedDocumentation 9

EnvironmentalRequirements 10

TheoryofOperation 10

Section2–SetupandCalibration 13

CoilInstallation 13

ReversePolarityConfiguration 13

InstallingtheCoil 14

QualityAssuranceCheck 15

Section3–FunctionalChecks 16

ScannerVerification 16

CoilImagingPerformanceVerification 16

ToolsRequired 16

DataCollectionSetupwithLegacyPhantom 16

DataCollectionSetupwithUnifiedPhantom 19

MCQA/SNRTest 21

DataAnalysis11.xand12.xonly 22

ExternalCableCheck 26

RFSignalChannelsCheck 27

PINDiodeControlChannelsCheck 27

PINDiodesCheck 28

MechanicalHardwareCheck 28

TroubleshootingTips 28

Section4–Maintenance 30

CoilCare 30

SpecialCareRequirements 30

Section5–Replacement 31

DisassemblyofCoil 31

ExternalCableReplacement 31

ToolsRequired 31

ReplacementTime 31

ReplacementProcedure 31

MechanicalHardwareReplacement 32

BaseplateReplacement 32

LatchReplacement 32

Section6–RenewalParts 34

FieldReplaceableUnits 34

OtherReplaceableAccessories 34

Section7–Appendix 35

Schematic 35

CoilConfiguration 35

SECTION1–INTRODUCTION

ProductIdentificationandShippingList

ThisisaservicemanualfortheGE1.5THDTRKneeArray.

Note:Coilsdonotshipwithphantoms.PhantomscomeinaunifiedphantomsetwiththeMRSystem.

SHIPPINGLIST–TABLE1-1

Description

GEPart#

Qty

1.5THDTRKneeArray

5114356-2

1

OperatorManual

5114356-5

1

ServiceManual

5114356-6

1

ThinKneePad

5114356-7

1

ThickKneePad

5114356-8

1

RampPad

5114356-9

1

AnklePad

5114356-10

1

PhantomPositioner

5114356-12

1

Compatibility

Thiscoiliscompatiblewiththefollowing1.5Thardwareconfigurations:

SignaExciteHD,HDx,HDe,SignaHDxT,DiscoveryMR450,andOptimaMR450wsystems

RelatedDocumentation

5133315-SignaEXCITEHD1.5T11.xServiceMethods

5155500–SignaHDx14.xServiceMethods

5323683-2EN–ExciteHDeServiceMethods

5440000–Signa15.xHDxTServiceMethods

5500110-Discovery20.xMR4501.5TServiceMethods

5670000–OptimaMR450w1.5TServiceMethods

1.5THDTRKneeArrayOperator’sManual,5114356-5

EnvironmentalRequirementsStorage

Storethecoilinanair-conditionedscanroomorequipmentroom.Tostorethecoil,astoragespaceof45.7cm/18.0in(width)x72.4cm/28.5in(depth)x42.7cm/16.8in(height)isrequired.

Dimensions

Coil:

45.7cmx72.4cmx42.7cm

(18.0inx28.5inx16.8in)

PhantomPositioner:

17.8cmx17.8cmx19.9cm

(7.0inx7.0inx7.83in)

Weight

Coil:

8.56Kg

(18.9lb)

PhantomPositioner:

1.5Kg

(3.3lb)

TheoryofOperation

RefertoFigure1belowandtheBlockDiagramonthefollowingpage.

Figure1

The1.5THDTRKneeArrayconsistsof8receiveelements,andaquadbirdcagetransmitcoil.Eachreceiveelementiscomprisedofalooparrangedazimuthallyaroundtheknee.Eachloopisapproximately45°inazimuthalextent.ThecenterofLoop#1islocated45°rotatedintheclockwisedirection(asviewedfromthehead)withrespecttothecenterofthepatella.Eachofthenextsevenloopsisrotatedclockwiseby45°successively.Duringtransmit,eachreceiveloopisdecoupledwithbothpassiveandactivedecoupling,withanadditionalactivepreampprotectionnetwork.Duringreceive,thetransmitbird-cageisdecoupledandsignalsfromelements1–8aredirectedtoseparateultra-low-inputimpedancepreampmodulesplaced

directlyattheoutputoftheloop.Thesepreampmodulesprovideadditionalelement

decoupling.Inaddition,the1.5THDTRKneeArrayallowsreceivingwiththebird-cagecoiltoobtainauniformsignalfromtheimagingvolume.

BirdCage

1.5THDKneeArray

BlockDiagram

Coil#1

PhaseShifter

Pre-amp

DCLines

Pre-amp

Coax

TX

Pre-amp

QuadHybrid

Pre-amp

RF

Switch

Coil#4

PhaseShifter

Pre-amp

Ch

anTXnel

1

Coil#5

PhaseShifter

Pre-amp

Coil#6

PhaseShifter

Pre-amp

CoilConnector

CoilID

Coil#7

PhaseShifter

Pre-amp

Coil#8

PhaseShifter

Pre-amp

PhaseShifter

Coil#3

PhaseShifter

Coil#2

SystemConnector

CableTraps

SECTION2–SETUPANDCALIBRATION

CoilInstallation

ReversePolarityConfiguration

DURINGREVERSEPOLARITYCONFIGURATION,THE1.5THDTRKNEEARRAYCOMBINERBOARDISEXPOSED.USEESDSAFETYPRECAUTIONS

ToolsRequired

1eaPhilipsScrewdriver

ConfigurationTime

15to20minutes

ConfigurationProcedure

Ifrequired,followthesestepstoconfigurethe1.5THDTRKneeArrayforreversepolarity.

Removethe1.5THDTRKneeArraycoilcableasdetailedinsection5-2ExternalCableReplacement.

Separatetheanteriorandposteriorcoilsections.

Usingthephillipsscrewdriver,remove4screwsfromtheanteriorcoilsectionasillustratedinFigure2-1-1-3-1.

RemovetheanteriorcoilsectioncoverasillustratedinFigure2-1-1-3-2.

Figure2-1-1-3-1 Figure2-1-1-3-2

Remove4screws RemoveCover

LocatethetwoTrap/CombinerCoaxialCables;theyaremarked1and2,andareconnectedtotheCombinerPrintedCircuitBoardatlocationsPort1andPort2respectively.ReferenceFigure2-1-1-3-3.

DisconnectbothTrap/CombinerCoaxialCables.Connectcable1toPort2andconnectcable2toPort1.ReferenceFigure2-1-1-3-4andTable2-1-1-3.

Figure2-1-1-3-3 Figure2-1-1-3-4

Trap/CombinerCableConnectors ExchangeConnectors

POLARITYCABLECONFIGURATION-TABLE2-1-1-3

Trap/CombinerCoaxialCable

ForNormalPolarity

ForReversePolarity

Number1

ConnecttoPort1

ConnecttoPort2

Number2

ConnecttoPort2

ConnecttoPort1

Reinstalltheanteriorcoilsectioncoverusingthe4associatedphillipsheadscrews.

Reinstallthe1.5THDTRKneeArraycoilcableasdetailedinsection5-2ExternalCableReplacement.

PerformtheCoilImagingPerformanceVerification,Section3-2.

InstallingtheCoil

Therearenoinstallationstepsotherthanplugginginthecoilandperformingfunctionalchecks.Coilconfigurationswillalreadybeonthesystemsoftware.ForDiscoveryMR450andOptimaMR450wthecoilconfigurationisHDTRKneePA.Thereare3configurationsavailableforHDx,HDxtandHDe:

HDTRKneePAHDTRKneeServiceHDTRK1chService

HDTRKneePAistheonlyconfigurationvisibleinclinicalmode.

HDTRKneeServiceandHDTRK1chServicearevisibleinservicemode(geservice).

HDTRKneeServiceandHDTRK1chServicemustbeinstalledfortheSNRtooltorun.

QualityAssuranceCheck

QAchecksshouldbeperformedduringinstallationandduringplannedmaintenance.Performthequalityassurancechecksasoutlinedbelowtoensurethecoilisoperatingproperly.

Checkexternalcableforcracksorcuts.

PerformSection3-CoilImagingPerformanceVerification.

SECTION3–FUNCTIONALCHECKS

ScannerVerification

PerformsystemlevelSignaltoNoiseCheck.RefertoServiceMethodsCD;SystemLevelProcedures;FunctionalChecks;SignaltoNoiseCheck.

CoilImagingPerformanceVerification3-2-1ToolsRequired

TOOLSREQUIREDUSINGLEGACYPHANTOM–TABLE3-2-1

Description

GEPart#

MRIDC#

Qty

Phantom

5114356-11

870005

1

PhantomPositioner

5114356-12

870006

1

TOOLSREQUIREDUSINGUNIFIEDPHANTOM–TABLE3-2-2

Description

GEPart#

MRIDC#

Qty

Largecylindrical

unifiedphantom

5342679

N/a

1

PhantomPositioner

5114356-12

870006

1

DataCollectionSetupwithLegacyPhantom

Placethe1.5THDTRKneeArray,thephantompositioner,andthephantomonthepatientcradleasshowninFigure3-2-2-1.Notetheserialnumberofthecoil.

Ensurethatthephantompositionerisalignedwiththeposteriorcoilsectionasindicatedbythemarksonthepositioner.(Figure3-2-2-2)

Figure3-2-2-1 Figure3-2-2-2

CoilandPhantomSetup PhantomPositionerAlignmentMarks

Beingcarefultoaligntheconnectorpins,placetheanteriorcoilsectionontotheposteriorcoilsectionandlatchintoplace.(Figure3-2-2-3)Thescannerwillnotoperateifthecoilsectionsarenotlatchedcorrectly.

Ensurethatthecoilisalignedandcenteredwithrespecttothebaseplateasindicatedbythearrowsonthebaseplateoffsetscale.(Figure3-2-2-4)

Figure3-2-2-3 Figure3-2-2-4

AnteriorCoilSectioninPlace AlignandCentertheCoil

Establishanaxiallandmarkusingthereferencemarkontopofthecoil.(Figure3-2-2-5)Advancetoscan.

Figure3-2-2-5

EstablishLandmark

DataCollectionSetupwithUnifiedPhantom

Visual

Description

Figure

1.PlacethelowersectionofthecoilonthepatienttableasshowninFigure.

2.AlignthealignmentmarkonthecoiltoZeropositiononthescaleasshowninFigure

Figure

Figure

3.PlacethelargecylindricalunifiedphantomintothePositionerasshowninFigure.

Figure

Alignmentmarks

Figure

PlacethisPhantom-positionersetuponthelowerpartofthecoilasshowninFigure.

Ensurethatthephantompositionerisalignedwiththeposteriorcoilsectionasindicatedbythemarksonthepositionerandthecoil(Figure)

Figure

6.CarefullyaligntheconnectorpinsonthelowerpartofthecoilwiththeupperpartofthecoilandlatchboththecoilsectionsintoplaceasinFigure.(Thescannerwillnotoperateifthecoilsectionsarenotlatchedcorrectly).

Figure

7.ConnectthecoiltoPortAofthesystemLPCAandLandmarkthecoilatthecrossmarkavailablenearthehandleofthecoil(Figure)andadvancetoscan.

MCQA/SNRTest

Movebacktotheoperatorworkspaceandendthepreviousexam,ifrequired.

For11x/12xsystems,gotoCommonServiceDesktop,selectTroubleshooting,ImageQualityTroubleshootingTools,andthencoilSurfaceCoilsSNRTest.ContinuewithStep3ofthissection.

For14xorlatersystems,gotoCommonServiceDesktop,selectImageQuality,andthenselectMCQA.Steps3-6donotapply.

IfmoreinformationisneededforMCQA,itcanbefoundon14x/15xserviceCDoronwebat:Troubleshooting/ImageQuality/multicoilQualityAssurance.ForMR450/450wthepathis:Troubleshooting/System/Multi-CoilQualityAssuranceTool

WhentheMulticoilSNRToolControlwindowopens,selectthe8ChannelTRKneeCoilfromtheCoilNameselectionmenu.(Figure3-2-4-1)

Figure3-2-4-1

MulticoilSNRToolControlWindow

EntertheCoilserialnumber.

EnterthenumberofrepetitionsinthePassesfield.Typically1passissufficient.

ClickontheStartScanbutton.Thesystemwillacquiretheimagesandautomaticallystartdataanalysis.

DataAnalysis11.xand12.xonly

ForinformationonMCQAforsystemslaterthan12.x,itcanbefoundon14x/15xserviceCDoronwebat:Troubleshooting/ImageQuality/multicoilQualityAssurance.ForMR450/450wthepathis:Troubleshooting/System/Multi-CoilQualityAssuranceTool

Thedataanalysisisautomated.

Whenthescancompletes,thedatawillbedisplayedintheMulticoilSNRToolControlwindow.(Figure3-2-5-1)Eachmeasurementisassignedapass/failvalue.ThecoilpassestheSNRtestifallmeasurementspass.

Figure3-2-5-1

ResultsintheMulticoilSNRToolControlWindow

AplotwindowwithSNR,indicatingthemeasuredvalueandspecificationlimit,willopen.(Figure3-2-5-2)

Figure3-2-5-2

ResultsintheSNRPlotWindow

Toviewarchiveddatafiles:

ClickontheViewDatabuttonintheMulticoilSNRToolControlwindow.(Figure3-2-2-6)

Anewwindow,MulticoilSNRDisplayControl,willopen.(Figure3-2-5-3)

Figure3-2-5-3

MulticoilSNRDisplayControlWindow

SelecttheFileTabandturnExpertModeon.

Selectthe8ChannelTRKneecoilinthecoilselectionmenu.

ClickthePlotDatabutton.

TheDataPlotControlwindowopens.(Figure3-2-5-4)

Figure3-2-5-4

DataPlotControlWindow

SelectthedesiredfileandclickPlotData.

AplotwindowwithSNR,indicatingthemeasuredvalueandspecificationlimit,willopen.(Figure3-2-5-5)

Figure3-2-5-5

ResultsintheSNRPlotWindow

I1H1G1F1

I10H10G10F10

E5

E6

E3

E4

E1

E2

D1

D4

C1

C4

B1

B4

A1

A10

ExternalCableCheck

UseFigure3-3forpinidentificationwhileperformingtheproceduresinsections3-3and3-4.ReferringtoSection5-2,ExternalCableReplacement,disconnectthecoilcablefromthecoil.

SystemandCoilConnectorsPinIdentificationFigure3-3

CoilConnector

RFSignalChannelsCheck

NOTE:ThecenterpinsoftheSystemConnectorreceive