Apparatus and method for recording an electroencephalogram during magnetic resonance imaging
US5445162A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 27, 1993 |
| Grant date | Aug 29, 1995 |
| Priority date | — |
| Expiry date | Aug 27, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/28
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method and apparatus for recording an electroencephalogram (EEG) during magnetic resonance imaging (MRI). Nonmagnetic electrodes are attached to a patient's scalp. EEG signals are multiplexed, amplified, and transmitted to an EEG machine or a personal computer located outside the MRI room. By reducing the amount of magnetic metal and radio frequency generating equipment associated with the recording of the EEG that is within the bore of the MRI magnet, and moving all significant radio frequency generating equipment outside the MRI room, EEG signals can be recorded and MRI images can be obtained simultaneously. The EEG signals are analyzed and, in response to a predetermined pattern, the MRI machine is triggered.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.