Patent ID: 8643362
Filing Date: 2014-02-04
Classification: G01R

Abstract:
1. A magnetic resonance imaging apparatus comprising: a reception coil which receives a magnetic resonance echo emitted from a subject, to output an echo signal; a clock generator which generates a clock signal; an echo transmitter which generates and transmits an echo transmission signal to wirelessly transmit the echo signal, and performs at least a part of processing to generate the echo transmission signal synchronously with the clock signal; a carrier generator which generates a carrier signal, a frequency of the carrier signal being configured to be changed within a variable range; a clock transmitter which wirelessly transmits a clock transmission signal obtained by modulating the carrier signal with the clock signal; a regenerator which regenerates the clock signal based on the clock transmission signal transmitted by the clock transmitter; an echo receiver which extracts the echo signal from the echo transmission signal transmitted by the echo transmitter, and performs a part of processing to extract the echo signal synchronously with the clock signal regenerated by the regenerator; a reconstruction unit which reconstructs an image concerning the subject based on the echo signal extracted by the receiver; a detector which detects a frequency of an electric wave which becomes an interference wave of the clock transmission signal; and a controller which selects, from the variable range, a frequency having comparatively small interference with respect to the frequency detected by the detector, and controls the carrier generator to generate the carrier signal having the selected frequency.