Negin Behzadian1 and Shiloh Sison2
1Research and Development, Abbott, Sylmar, CA, United States, 2Research and Development, Abbott, Sunnyvale, CA, United States
1Research and Development, Abbott, Sylmar, CA, United States, 2Research and Development, Abbott, Sunnyvale, CA, United States
Typical 3T B1+RMS MRI conditional labeling
such as 2.8uT is found to potentially limit scan protocols with SAR levels
above 1.5W/kg under Normal Operating Mode and above 1.7W/kg under First Level
Controlled Operating Mode.
Figure
1: Normalized 3T MRI RF-Induced In-Vitro Temperature Rise at Different Fixed
wbSAR and B1+RMS Levels under Normal Operating Mode for Two
Different Cardiac Pacing Leads
Figure 3: Points of Equivalent 3T MRI RF-induced Heating for B1+RMS
vs. wbSAR Scaling under Normal Operating Mode for Two Different Cardiac Pacing
Leads