Fundamental Study of Turbo Spin Echo Sequence with Driven Equilibrium Pulse

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  • Kanazawa Yuuki
    Department of Radiology, Kyoto First Red Cross Hospital
  • Inoue Yuusuke
    Department of Radiology, Kyoto First Red Cross Hospital Kanazawa University Graduate School of Medicine
  • Ishida Kenichi
    Department of Radiology, Kyoto First Red Cross Hospital

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Other Title
  • Ｄｒｉｖｅｎ　Ｅｑｕｉｌｉｂｒｉｕｍ　Ｐｕｌｓｅを利用したＴｕｒｂｏ　Ｓｐｉｎ　Ｅｃｈｏ法（ＤＲＩＶＥ）の基礎的検討
  • 臨床技術 Driven Equilibrium Pulseを利用したTurbo Spin Echo法(DRIVE)の基礎的検討
  • リンショウ ギジュツ Driven Equilibrium Pulse オ リヨウ シタ Turbo Spin Echoホウ DRIVE ノ キソテキ ケントウ

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When MR images are obtained with the turbo spin echo (TSE) sequence, DRIVE can be used as a sequence in which the driven equilibrium pulse (DE pulse), a reset pulse, is applied at the TSE echo train to accelerate relaxation time and return to the equilibrium of Mz magnetization. In this study, we examined the extent to which TR could be shortened in DRIVE and how the other parameters of the turbo spin echo sequence influence it. Results: 1) DRIVE is effective when the T2 value is long. 2) It is necessary to set TR at 1000 ms or more to obtain image contrast with free water and fat in T2-weighted images for which a conventional turbo spin echo sequence using DRIVE is employed in clinical examination. 3) It is not necessary to consider the influence of the TSE factor when using DRIVE.

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