The occasion where image pickup for sensitivity distribution measurement is executed, change it uses with the systemic coil of sending and receiving combined use and the private coil which is used for this image pickup as a reception coil. Change of the reception coil inside identical encoding step changes the systemic coil and the private coil in every echo. Division it does with the picture which was drawn up from the echo where the systemic coil acquires the picture which was drawn up from the echo which the private coil acquires, calculates the sensitivity distribution of the private coil. Because the data which is used for calculation is something which almost is acquired simultaneously you can obtain the accurate sensitivity distribution which does not receive the influence of the movement of the suffering inspection body. The picture which is obtained in at this image pickup making use of this sensitivity distribution is revised. Or it uses for the lapel operation of parallel imaging.感度分布計測のための撮像を実施する際に、受信コイルとして、送受信兼用の全身コイルと、本撮像に用いる専用コイルとを切替ながら用いる。受信コイルの切替は、同一エンコードステップ内でエコー毎に全身コイルと専用コイルを切替える。専用コイルが取得したエコーから作成した画像を、全身コイルが取得したエコーから作成した画像で除算し、専用コイルの感度分布を算出する。算出に用いたデータはほぼ同時に取得したものであるので被検体の動きの影響を受けない正確な感度分布が得られる。この感度分布を用いて本撮像で得た画像を補正する。或いはパラレルイメージングの折り返し演算に用いる。
