Patent ID: 7535230
Filing Date: 2009-05-19
Classification: G01R

Abstract:
1. A magnetic resonance imaging apparatus comprising: a applying unit which applies a gradient magnetic field and a radio-frequency pulse to a subject placed in a static magnetic field; a radio-frequency coil unit which includes a plurality of element coils to respectively detect magnetic resonance signals emitted from the subject in accordance with the application of the gradient magnetic field and the radio-frequency pulse, and outputs signals of a plurality of channels based on the plurality of magnetic resonance signals detected by the plurality of element coils; a plurality of receiving circuits each of which receives one of the signals of the plurality of channels, and whose number is smaller than the plurality of channels; a selecting circuit which includes a plurality of matrix switches connected in multiple stages, selects some of magnetic resonance signals from the signals of the plurality of channels, and inputs the selected magnetic resonance signals to the plurality of receiving circuits; a setting unit which sets diagnostic conditions; and a determining unit which determines a connection state of the plurality of matrix switches in accordance with the set diagnostic conditions.