It has been shown by specific MRI tests that the Prefix
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System may be used for patients undergoing MRI procedures using up to 1.5 Tesla
MR systems if certain specific conditions are followed. Four commonly used frames have been tested for MRI use at 1.5 Tesla. The results
are as follows:
Blue Screw Clip Clamp in Single Bar Configuration
• A maximum temperature increase of 6.0 °C has been measured at the tip of the most external screw (Maximum Whole Body averaged
SAR of 2W/kg for 3.5 minutes of scanning)
Code Description
1x92350 Rod 350mm long
4x911560 Self-Drilling XCaliber Screw, L. 150mm, thread length 60mm
4x92016 Blue Screw Clip Clamp
Blue Multi Screw Clamp
• A maximum temperature increase of 4.0 °C has been measured at the tip of the indicated screws (Maximum Whole Body averaged SAR
of 2W/kg for 6 minutes of scanning)
Code Description
2x92350 Rod 350mm long
4x911560 Self-Drilling XCaliber Screw, L. 150mm, thread length 60mm
4x92012 Blue Rod Clip Clamp
2x92031 Blue Multi Screw Clamp
Z Configuration
• A maximum temperature increase of 7.0 °C has been measured at the tip of the most external screw (Maximum Whole Body averaged
SAR of 2W/kg for 6 minutes of scanning)
Code Description
2x92125 Rod 125mm long
1x92275 Rod 275mm long
2x911560 Self-Drilling XCaliber Screw, L. 150mm, thread length 60mm
2x911540 Self-Drilling XCaliber Screw, L. 150mm, thread length 40mm
4x92016 Blue Screw Clip Clamp
2x92012 Blue Rod Clip Clamp
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