| 摘要 |
A magnetic resonance (MR) system (10) minimizes noise for modes of an array of coils (261, 262,..., 26n). The system (10) includes an array of coils (261, 262,...,26n) in which the coils of the array (261, 262,... 26n) share impedances. A splitter/combiner (30) receives a plurality of signals (S1; S2,..., Sn) from each of the coils (261, 262,..., 26n) and converts the plurality of signals (S1; S2,..., Sn) to a plurality of signals (S1; S2,..., Sn) which are compensated for the shared impedance. The splitter/combiner (30) splits the received signals (S1; S2,..., Sn) into components and combines components of like frequency and/or phase to create the impedance compensated signals (S1; S2,..., Sn). Each impedance compensated signal is amplified by a corresponding preamplifier (381, 382,..., 38n). |
