| 摘要 |
<p>A method and a system for simultaneous acquisition of bioelectric signals and magnetic resonance images, and a pulse sequence that is used for recording of bioelectric signals during magnetic resonance imaging without imaging artifacts on the bioelectric signals. With this pulse sequence, each readout gradient pulse has a waveform with a ramp up segment during which the amplitude of the readout gradient pulse increases, a null segment during which the amplitude of the readout gradient pulse does not change, and a ramp down segment during which the amplitude of the readout gradient pulse decreases. Each null segment is sandwiched between a ramp up segment and a ramp down segment. The combination of a ramp up segment, null segment, and ramp down segment is repeated a predetermined number of times, and the bioelectric signals are recorded during application of each gradient pulse only within the respective readout null segments.</p> |
