CONTROL DEVICE, CONTROL METHOD AND PROGRAM

To shorten the imaging time in such a state where the conventional image quality is maintained or improved, and to acquire information about hardness in an object.SOLUTION: A control device for controlling an MRI device that receives an electromagnetic wave signal emitted when a proton included in a...

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Bibliographische Detailangaben
Hauptverfasser: NUMANO TOMOKAZU, JINSAKI MASAHIRO, ITO DAIKI, OKUDA SHIGEO
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:To shorten the imaging time in such a state where the conventional image quality is maintained or improved, and to acquire information about hardness in an object.SOLUTION: A control device for controlling an MRI device that receives an electromagnetic wave signal emitted when a proton included in an inspection object part is alleviated by applying vibration and a magnetic field to the inspection object part comprises: a gradient magnetic field control part which generates a gradient magnetic field that has different generation timing with respect to a plurality of axes on a space by controlling the MRI device; a wave image generation part which generates a wave image in which a propagation wave propagating in the object is visualized on the basis of the electromagnetic wave signal received by the MRI device; a wave image extraction part which extracts the wave image for each of the plurality of axes on the basis of the different generation timing of the gradient magnetic field from the wave image; and an MRE image generation part which generates an MRE image being an image showing hardness of the inspection object part by using the extracted wave image.SELECTED DRAWING: Figure 3 【課題】従来の画質を維持あるいは向上させた状態で撮像時間を短縮し、対象物内の硬さの情報を取得する。【解決手段】被検査部に振動を加えるとともに磁場を印加することで、前記被検査部に含まれるプロトンが緩和するときに発する電磁波信号を受信するMRI装置を制御する制御装置であって、前記MRI装置を制御して、空間上の複数の軸に対して発生タイミングが異なる傾斜磁場を発生させる傾斜磁場制御部と、前記MRI装置が受信した前記電磁波信号に基づいて対象内部を伝わる伝播波を可視化したウェーブイメージを生成するウェーブイメージ生成部と、前記ウェーブイメージから、前記傾斜磁場の異なる発生タイミングに基づいて、前記複数の軸ごとのウェーブイメージを抽出するウェーブイメージ抽出部と、前記抽出されたウェーブイメージを用いて前記被検査部の硬さを示す画像であるMRE画像を生成するMRE画像生成部と、を備える制御装置。【選択図】図3