| 摘要 |
PROBLEM TO BE SOLVED: To provide an MRI device capable of stably obtaining a B1 map necessary for RF shimming while favorably masking an image obtained by photographing a subject. ! SOLUTION: The MRI device includes an image reconfiguration section for respectively generating a plurality of images for a plurality of RF coils by image-reconfiguring a plurality of echo signals generated by a signal acquiring sequence sections, a mask production image generation section 29-1 for generating the mask production image by combining a plurality of images, an average and standard deviation calculation section 29-2 for calculating an average and standard deviation of a noise area on the basis of pixel values in an area below a bed of the mask production image, a threshold decision section 29-3 for deciding a threshold on the basis of the average and standard deviation, and a threshold processing section 29-4 for generating a mask image by using the mask production image generated by the mask production image generat |
