Patent ID: 7956611

Claim:
A magnetic resonance imaging apparatus comprising: a plurality of high-frequency reception coils; sensitivity distribution information obtaining means for calculating sensitivity distribution information of the plurality of high-frequency reception coils respectively; sensitivity distribution storage means for storing the sensitivity distribution information; measuring means for acquiring magnetic resonance signals by thinning out encode steps of a k-space; image reconstruction means for reconstructing images by using the magnetic resonance signals; and means for performing unfolding calculation by using the sensitivity distribution information and the image, thereby acquiring the unfolded images, characterized in further comprising: means for estimating the sensitivity distribution information of a background region by using the sensitivity distribution information of an object region; and means for updating the sensitivity distribution information in each background region mutually using sensitivity distribution information of the plurality of high-frequency reception coils, thereby suppressing noise components contained in the unfolded images, wherein the updating of the sensitivity distribution information is carried out so that the sensitivity distribution information of the plurality of high-frequency reception coils becomes spatially and mutually different.