Radiology - Boston Scientific Spectra WaveWriter 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 Spectra WaveWriter SCS System (such as 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 therapy "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 Spectra WaveWriter Spinal Cord Stimulator System
MR Conditions of Use
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