Influence of magnetic resonance imaging on somatosensory and brain-stem auditory evoked potentials in man |
| |
Authors: | G Niemann G Schroth U Klose U W Buettner |
| |
Institution: | (1) Abteilungen für Neurologie, Universität Tübingen, Liebermeisterstrasse 18-20, D-7400 Tübingen, Federal Republic of Germany;(2) Abteilungen für Neuroradiologie, Universität Tübingen, Liebermeisterstrasse 18-20, D-7400 Tübingen, Federal Republic of Germany |
| |
Abstract: | Summary There is still a need to prove that even static magnetic fields up to 1.5 T used in magnetic resonance imaging (MRI) are biologically safe and harmless for humans. Recordings of median and ulnar nerves and brain-stem auditory evoked potentials in 20 patients were completed prior to and after MRI investigation of the central nervous system. Neither the somatosensory nor the auditory evoked potentials exhibited any significant change of latencies, interpeak latencies or amplitudes. Since these electrophysiological parameters are highly dependent on the quality of nerve conduction and integrity of information processing in various nuclei, it may be assumed that MRI causes no lasting changes in either respect. |
| |
Keywords: | Evoked potentials Magnetic resonance imaging Somatosensory evoked potentials Brain-stem auditory evoked potentials |
本文献已被 SpringerLink 等数据库收录! |