SenTiva™ Model 1000, AspireSR™ Model 106, AspireHC™ Model 105, Demipulse™Model 103
The following scan conditions apply for a cylindrical closed-bore 1.5T or 3.0T scanner.
The device has been evaluated for MRI induced risks, including heating, unintended stimulation, force, torque, device malfunction and device vibration and has been determined to be safe under the conditions specified in labeling; however, the patient may feel sensations of warmth or vibration at the implant site during the MRI scan.
Scan conditions - Latest VNS Therapy technology
*Demipulse™ Model 103, AspireHC™ Model 105, AspireSR™ Model 106, SenTiva™ Model 1000
Static Magnet Strength
1.5T or 3T
Horizontal field, cylindrical closed-bore
Normal Operating Mode
Body Coil: C7-L3 Transmit-receive head or extremity coil: C7-T8
Max Spatial Gradient
Max Skew Rate
Transmit: Body coil or Transmit-receive head or extremity coils Receive: No restrictions
Transmit head coil: 3.2 W/kg Transmit body coil: 2.0 W/kg
Stimulation OFF Sensing OFF*
*for select models with AutoStim mode
Optional device feature OFF (Model 1000 only)
Transmit head of extremity coil: No restrictions Transmit body coil: ≤15 minutes of active scan time within a 30 minute window
Transmit head or extremity coil: none Transmit body coil: Circularlized Polarized mode only
NOTE: MRI scans using a body coil have not been approved in all geographies.
Always review the most current labeling prior to performing an MRI scan.