Imaging Characteristics of PROPELLER T2-weighted Imaging

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  • GOTO MASAMI
    Department of Radiological Technology, University of Tokyo Hospital
  • AOKI SHIGEKI
    Department of Radiology, University of Tokyo Hospital
  • HAYASHI NAOTO
    Department of Radiological Technology, University of Tokyo Hospital
  • MORI HARUSHI
    Department of Radiology, University of Tokyo Hospital
  • WATANABE YASUSHI
    Department of Radiological Technology, University of Tokyo Hospital
  • INO KENJI
    Department of Radiological Technology, University of Tokyo Hospital
  • SATAKE YOSHIROU
    Department of Radiological Technology, University of Tokyo Hospital
  • NISHIDA KATUJI
    Department of Radiological Technology, University of Tokyo Hospital
  • SATO HARUO
    Department of Radiological Technology, University of Tokyo Hospital
  • IIDA KYOUHITO
    Department of Radiological Technology, University of Tokyo Hospital
  • MIMA KAZUO
    Department of Radiological Technology, University of Tokyo Hospital
  • OHTOMO KUNI
    Department of Radiology, University of Tokyo Hospital

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Other Title
  • PROPELLER T2WIにおける撮像条件の検討

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Abstract

As the PROPELLER sequence is a combination of the radial scan and fast-spin-echo (FSE) sequence, it can be considered an FSE sequence with a motion correlation. However, there are some differences between PROPELLER and FSE owing to differences in k-space trajectory. We clarified the imaging characteristics of PROPELLER T2-weighted imaging (T2WI) for different parameters in comparison with usual FSE T2WI. When the same parameters were used, PROPELLER T2WI showed a higher signal-to-noise ratio (SNR) and lower spatial resolution than usual FSE. Effective echo time (TE) changed with different echo train lengths (ETL) or different bandwidths on PROPELLER, and imaging contrast changed accordingly to be more effective.

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