Improvement of Body Diffusion Image Using Addition Technique

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  • Yasuda Mitsuyoshi
    Department of Radiological Technology, Showa University Fujigaoka Hospital
  • Kato Kyouichi
    Department of Radiological Technology, Showa University Fujigaoka Hospital
  • Takahashi Toshiyuki
    Department of Radiological Technology, Showa University Fujigaoka Hospital
  • Sai Shougo
    Department of Radiological Technology, Showa University Fujigaoka Hospital
  • Fujimura Kazumasa
    Department of Radiological Technology, Showa University Fujigaoka Hospital
  • Hamada Kenji
    Department of Radiology, Showa University Hospital
  • Nakazawa Yasuo
    Department of Radiological Technology, Showa University Hospital

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Other Title
  • 加算処理による腹部Ｄｉｆｆｕｓｉｏｎ　ｉｍａｇｅ改善の方法
  • カサン ショリ ニ ヨル フクブ Diffusion image カイゼン ノ ホウホウ

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Description

It is difficult to obtain body diffusion weighted images (BDWI) using MRI that does not support parallel imaging and multi-NEX in clinical usage. Therefore, we evaluated whether a multiple image additions technique on the workstation could improve BDWI image quality and be good for clinical use by considering SNR and image distortion. We added 2 to 5 images on the same slice location with changing FOV, slice thickness, or reconstruction matrix in the phantom studies, and confirmed SNR improvement under all conditions. We also confirmed that this addition technique did not affect image distortion. We found that in 16 of the 18 clinical cases, BDWI with 5 images addition match pathology and T2 weighted images. We believe that this addition technique in available in the clinical practice.

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