Philips Expression MR400 - Page 205

ExpressionMR400InstructionsforUseMonitoringSPO26‐7
WAR NIN G
If the wSpO2 module is incorrectly positioned when used within the MR magnet room, the
following factors can cause SPO2 waveform distortion and numeric inaccuracies, and
respiration numeric inaccuracies:
• Fast magnetic field changes usually found but not limited to scan sequences using PNS
levels above 80 percent.
• Severe vibrations induced by scan sequences using PNS levels above 80 percent.
• Distance from the bore opening.
• Distance from the bore iso-center in the x, y, or z direction.
ToensurebestperformanceduringSPO2

measurements
Step Action
1Ensurethatthefiberheadsaredirectlyoppositeeachother,asthe
lightmustpassthroughthepatient’stissueandbereceivedfor
properoperation.
2Swiveleachfiberheadintoapositionthatcausestheleastbending
ofthecablewhi leprovidingthemostcomforttothepatient.
3Checkthebattery
indicatoronthewSpO2moduletoensurethat
enoughchargeexists:
• Greenbatteryindicator=Charge sufficient;proceedtostep5.
•Redbatteryindicator=Chargelow;proceedtostep4.
Seepage2‐11fordetails.(Also,youcanreferencethestatus
informationpane;seepage2‐16.)
4Insertacharged
modulebatteryintothewSpO2 moduleandthen
recheckthebatteryindicatortoensureasufficientchargebefore
proceeding;seepage1‐26.
5CheckthenetworkchannelindicatoronthewSpO2moduleto
ensurecommunicationisestablishedwiththeMR400:
• Steady=Goodcommunication;proceedtostep7.
• Flashing=Nocommunication;
proceedtostep6.
Seepage2‐11fordetails.(Also,youcanreferencethestatus
informationpane;seepage2‐16.)
6EnsurethatthewSpO2moduleiswithin9.1m(30feet)ofthe
MR400,inthesameMRIroomorinthesameshieldedroom,andis
setto
thesamewirelessnetworkchannelusedbytheMR400;see
page1‐29.
7ChecktheperfusionindexvalueforthequalityoftheSpO2
measurementfromthemodule;seepage6‐6fordetails.