Docket #: S09-382
Frequency Selective Negative Feedback to Avoid Preamplifier Oscillation in Multi-Channel Arrays
A system and method for generating preamplifier feedback in magnetic resonance imaging (MRI) systems are provided. A preamplifier arrangement for the MRI system includes a plurality of preamplifiers with each of the preamplifiers connected to a different channel of a multi-channel coil array of the MRI system. The preamplifier arrangement further includes a feedback network connected to each of the plurality of preamplifiers with each of the feedback networks configured to generate negative feedback at one or more oscillation frequencies.
Patents
- Published Application: 20110248712
- Issued: 8,791,696 (USA)