Multiple magnetic resonance imaging in patients with implanted sacral nerve stimulator
Stefan Heidler1, Stefan Ostermann1, Miriam Kuglitsch1
1Department of Urology, Krankenhaus Mistelbach, Mistelbach, Austria.
Neurourology and Urodynamics
|September 4, 2020
Summary
Multiple magnetic resonance imaging (MRI) scans did not negatively impact InterStim™ sacral neurostimulator systems (SNS) function or patient safety. This study found no adverse effects in patients with implanted SNS devices undergoing serial MRI examinations.
Area of Science:
- Biomedical Engineering
- Neurology
- Urology
Background:
- Sacral neurostimulator systems (SNS) are used for bladder control.
- Concerns exist regarding the safety and functionality of implanted electronic devices during MRI scans.
Purpose of the Study:
- To evaluate the impact of multiple magnetic resonance imaging (MRI) scans on InterStim™ sacral neurostimulator systems (SNS).
- To assess patient safety during and after MRI procedures with an implanted SNS.
Main Methods:
- 16 patients with SNS underwent 72 MRI scans over 17 years.
- SNS devices were deactivated before MRI and reactivated afterward.
- Device function and patient safety were monitored throughout.
Main Results:
- No patients reported pain or discomfort.
- No statistically significant changes in device impedance or stimulation amplitude were observed.
- Micturition charts showed no deviations post-MRI.
Conclusions:
- This is the first report demonstrating successful multiple MRI scans in patients with implanted SNS.
- Multiple MRIs had no adverse effects on SNS function or patient outcomes.
