PROBLEM TO BE SOLVED: To provide a technology which can select an excitation range, freely set resolution, adjust contrast by TE, does not extend a measurement time, and can reduce noise in an MRI apparatus.SOLUTION: An echo signal is measured according to a sequence that is provided with a slice excitation part which does not perform reconvergence (Refocus) after high-frequency magnetic field pulse is irradiated during measurement using an MRI apparatus and an echo signal read-out part which does not perform phase dispersion (Dephase) and performs k space scanning radially from a displaced position of a k space by unperforming reconvergence.SELECTED DRAWING: Figure 3COPYRIGHT: (C)2016,JPO&INPIT【課題】MRI装置において、励起範囲の選択ができ、分解能の設定が自由にでき、TEによるコントラストの調整を行うことができ、計測時間が延長せず、かつ、騒音を低減する技術を提供する。【解決手段】MRI装置を用いた計測時に、高周波磁場パルス照射後に再収束(リフォーカス;Refocus)を行わないスライス励起部と、位相分散(ディフェーズ(Dephase)を行わずに、再収束を行わないことにより変位したk空間の位置から放射状にk空間走査を行うエコー信号読み出し部と、を備えるシーケンスに従って、エコー信号の計測を行う。【選択図】 図3
