PROBLEM TO BE SOLVED: To provide a technology enabling a body motion signal having a reduced influence of a fat signal to be acquired.SOLUTION: An MR device has: means for obtaining an in-phase signal S0(zi) and an out-of-phase signal S1(zi) means for obtaining a phase correction signal S1φ(zi) based on the out-of-phase signal S1(zi) means for obtaining a water signal W(zi) based on the in-phase signal S0(zi), the out-of-phase signal S1(zi) and the phase correction signal S1φ(zi) and detection means for detecting the edge of a liver based on the water signal W(zi).SELECTED DRAWING: Figure 33COPYRIGHT: (C)2016,JPO&INPIT【課題】脂肪信号の影響が低減された体動信号を取得することができる技術を提供する。【解決手段】MR装置は、インフェーズ信号S0’(zi)およびアウトオブフェーズ信号S1’(zi)を求める手段と、アウトオブフェーズ信号S1’(zi)に基づいて位相補正用信号S1φ’(zi)を求める手段と、インフェーズ信号S0’(zi)と、アウトオブフェーズ信号S1’(zi)と、位相補正用信号S1φ’(zi)に基づいて、水信号W(zi)を求める手段と、水信号W(zi)に基づいて、肝臓のエッジを検出する検出手段とを有する。【選択図】図33
