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Patient MRI Options

MRI Patient Options
Learn more about MRI options for your patients
MRI Scans are safe with VNS Therapy provided specific guidelines are followed

Learn more about MRI options for your patients

MRI with VNS Therapy Manual

Radiology FAQs

  Group A Group B Group B
 

DemiPulse Model 103
AspireHC Model 105
AspireSR Model 106
SenTiva Model 1000
SenTiva DUO™ Model 1000-D
AND
Generator Location - in the upper left chest at or above armpit (above rib 4)

DemiPulse Model 103
AspireHC Model 105
AspireSR Model 106
SenTiva Model 1000
SenTiva DUO™ Model 1000-D
AND
Generator Location - NOT in the upper left chest at or above armpit (above rib 4)
Model 100C, Model 101, Pulse™ Model 102, Pulse Duo™ Model 102R, DemiPulse Duo Model 104
(Applicable for all implant locations)
MR Conditional
MR Conditional
Yes Yes Yes
Static Magnet Strength 1.5T or 3T 1.5T or 3T 1.5T or 3T
Scanner Type Horizontal field, cylindrical closed-bore Horizontal field, cylindrical closed-bore Horizontal field, cylindrical closed-bore
Operating Mode Normal Operating Mode Normal Operating Mode Normal Operating Mode*
Exclusion Zone Body coil: C7-L3
Transmit-receive head or extremity coil: C7-T8
C7-T8 C7-T8
Max Spatial Gradient ≤3000 Gauss/cm ≤3000 Gauss/cm ≤3000 Gauss/cm
Max Slew Rate 200 T/m/s 200 T/m/s 200 T/m/s
RF Coil Transmit: Body coil or Transmit-receive head or extremity coils
Receive: No restrictions
Transmit-receive head or extremity coils only Transmit-receive head or extremity coils only
Max SAR Transmit head coil: 3.2 W/Kg
Transmit body coil: 2.0 W/Kg
Transmit-receive head coil: 3.2 W/kg Transmit-receive head coil: 3.2 W/Kg
System Programming Stimulation OFF Sensing OFF*
*for select models with AutoStim mode
Optional device features OFF (Models 1000 and 1000-D only)
Stimulation OFF Sensing OFF*
*for select models with AutoStim mode
Optional device features OFF (Models 1000 and 1000-D only)
Stimulation OFF
Exposure Time Transmit head or extremity coil: No restrictions
Transmit body coil: ≤15 minutes of active scan time within a 30 minute window
Transmit-receive head or extremity coil: No restrictions Transmit-receive head or extremity coil: No restrictions
Additional Restrictions Transmit head or extremity coil: none
Transmit body coil: Circularized Polarized mode only
None None

*Normal Operating Mode: Transmit Head Coil: 3.2 W/Kg, Transmit Body Coil: 2.0 W/Kg, Transmit/Receive head coil: 3.2 W/Kg

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.

For MRI Safety information, refer to MRI Instructions For Use.

Further Support

For further support or additional resources, please get in touch with your local VNS Therapy Representative.

If you are new to VNS Therapy, please contact us. 

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