Patent ID: 8952692
Filing Date: 2015-02-10
Classification: G01R

Abstract:
1. A magnetic resonance imaging apparatus comprising: an image generating unit which: (a) receives, from an object potentially containing an implant, magnetic resonance signals caused by transmission of at least one RF pulse having a center frequency in order to cause a nuclear magnetic resonance and, and (b) generates magnetic resonance image data of the object received based on the magnetic resonance signals; a judging unit which judges an implant region where at least a part of an implant exists inside the object, based on the generated magnetic resonance image data; and a correction unit which acquires magnetic resonance frequency information from a body region inside the object excluding the implant region, and corrects said center frequency of the at least one RF pulse based on the acquired magnetic resonance frequency information, wherein the judging unit is configured to extract a plurality of regions of interest from the generated image data, in order to obtain a smoothness of intensity distribution of the received magnetic resonance signals indicated by respective pixels of each of the regions of interest, and then also identify a position of at least a part of the body region based on the smoothness of the intensity distribution.