Philips Expression MR400 - Page 185

ExpressionMR400InstructionsforUseMonitoringECG5‐21
PositioningthewECGmodule
Warning
WAR NIN G
The wECG module must be kept outside the system bore or image distortion may result.
This is a result of proton emissions from the ECG module.
Dependinguponyourregionofinterest(ROI)andthelargestfieldofviewbeingexamined(see
illustrationbelow),followtheseguidelinestoensurethebestperformanceofthewECGmodule,
especiallydu ring harshscansequences:
•Forstaticfield(B0)compliance,keepthemoduleatleast28cm(11inches)outside
the
MRIfieldofview.
• Consideringthescantobeperformed,placethemoduleonornearthepatientandas
closetotheboreiso‐centeraspossible.
•Placethemoduleasclosetotheboreopeningaspossible.(Ifthemodulecanbeplaced
outsidethebore,positioningat
theboreiso‐centerisnotnecessary.)
•PlacethemoduleonacushionedsurfacetominimizeMRvibrations.
Magnet type: Achieva 3.0T XR Series
Male:
ROI
Largest FOV
(45 cm)
Bore Iso-center
Patient Table
MRI Bore
Male:
Patient Table
MRI Bore
Bore Iso-center
For B0 compliance always keep the
wECG module 28 cm from the edge
of the FOV.
For example, a lower abdomen scan
places the module at an acceptable
distance of 30 cm (considering the
length of the ECG cable)