PROBLEM TO BE SOLVED: To obtain a multi-array coil (MAC) summation effect with high accuracy in short time even though a phase characteristic distribution of respective coils has a spatial non-uniformity, i.e., to prevent the reduction of SNR due to the non-uniformity of phase characteristics, in MRSI measurement using a magnetic resonance imaging apparatus provided with a MAC.SOLUTION: Using a non-water-suppressed image signal with high SNR, obtained in non-water-suppressed measurement (reference measurement) without water suppression, a correction value for correcting the phase distortion is calculated on each pixel in each coil. After correcting a phase on each pixel in each coil of a main-scan image signal measured under suppressing water (water-suppressed image signal) using the corrective value, the adding operation (summation) of an image to be generated in each coil is performed. Then, normal phase correction is performed on a summed spectrum signal.COPYRIGHT: (C)2012,JPO&INPIT【課題】マルチアレイコイル(MAC)を備えた磁気共鳴撮影装置を用いたMRSI計測において、各コイルの位相特性分布に空間的不均一がある場合であっても、短時間に高いMAC合成効果を得ること、すなわち位相特性の不均一によるSNR低下を防止する。【解決手段】水抑圧を行わない非水抑圧計測(リファレンス計測)で取得されるSNRの高い非水抑圧画像信号を用いて、コイル毎および画素毎に、位相歪みを揃えるための補正値を算出し、水抑圧を行って計測した本計測画像信号(水抑圧画像信号)に対して、前記補正値を適用して、コイル毎および画素毎の位相を揃えた後で、コイル毎に作成される画像の足し合わせ処理(合成)を行う。そして、合成後のスペクトルに対して、通常の位相補正を行う。【選択図】図6
