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Human brainstem auditory evoked potentials (BAEP) before and after MR examinations
Magnetic Resonance in Medicine
|December 1, 1990
Summary
Routine MRI scans do not significantly affect brainstem auditory evoked potentials (BAEPs). This study found no major changes in BAEPs after magnetic field exposure, ensuring patient safety during imaging.
Area of Science:
- Biophysics
- Neuroscience
- Medical Imaging
Background:
- Previous research indicated potential changes in human brainstem auditory evoked potentials (BAEPs) following exposure to static magnetic fields.
- Understanding the effects of magnetic fields on neurophysiological responses is crucial for medical applications.
Purpose of the Study:
- To investigate whether routine 1.5 Tesla (T) Magnetic Resonance Imaging (MRI) examinations significantly alter BAEPs.
- To assess the impact of varying static magnetic fields (0-2.0 T) on BAEPs in a healthy volunteer.
Main Methods:
- Recorded BAEPs from 11 subjects before and after a standard 1.5 T MRI scan.
- Measured BAEPs of a healthy volunteer across a range of static magnetic fields from 0 to 2.0 T.
Main Results:
- Routine MRI investigations did not produce significant alterations in the interpeak latencies of BAEPs.
- No significant changes in BAEPs were observed in the healthy volunteer exposed to different static magnetic fields up to 2.0 T.
Conclusions:
- Routine 1.5 T MRI examinations are unlikely to cause significant changes in human BAEPs.
- The findings suggest that static magnetic fields encountered during MRI are generally safe concerning BAEPs.