Radiology - Boston Scientific ImageReady Mode D'emploi

Radiology

1. MRI systems that meet the following criteria:
• MRI magnet strength of 1.5T only, in a horizontal closed bore system (no vertical-field,
standing, or extremity systems)
• Gradient systems with a maximum gradient slew rate per axis less than or equal to
200 T/m/s.
• Maximum static field spatial gradient less than or equal to 40 T/m (4000 gauss/cm).
2. MRI coil setup:
• 1.5T transmit/receive RF quadrature head coil only
• No other local or whole body transmit or transmit/receive coils may be used.
• Hydrogen/proton imaging only
3. Patient status and positioning:
• The patient is in supine position only, with head at isocenter within the Head Transmit/
Receive coil.
• Confirm that no component of the Precision Spectra™ SCS System (i.e. the implanted leads,
IPG, etc) comes within 10 cm of the head coil. One way to verify this is:
a. The lead distal tip is inferior to T5 (between T12 and T5) at the thoracic spinal level.
b. The IPG is implanted in the upper buttock or the lower flank.
• Confirm with the patient that their IPG is fully charged (IPG charge shown as three (3) bars
on the Remote Control).
• The patient has turned stimulation "Off" using their Remote Control.
4. MRI system settings:
• Scanner operation at or below Normal Operating Mode limits for RF and gradient exposure:
RF Head SAR < 3.2 W/Kg (Note: Whole Body averaged SAR is not applicable for Head
Transmit/Receive scanning.)
5. Monitoring:
• The patient must have continuous audio/visual monitoring during the MRI.
ImageReady™ MRI Guidelines for Precision Spectra™ Spinal Cord Stimulator System
MR Conditions of Use
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