4-Dimensional MRI sagittal sections for depicting swallowing movement

DOI
  • MICHIWAKI Yukihiro
    Department of Oral and Maxillofacial Surgery, School of Dentistry, Showa University
  • SAITO Mayu
    Department of Oral and Maxillofacial Surgery, School of Dentistry, Showa University
  • NIU Kazuyo
    Department of Oral and Maxillofacial Surgery, School of Dentistry, Showa University
  • OZAWA Motoko
    Department of Oral and Maxillofacial Surgery, School of Dentistry, Showa University
  • NAGUMO Masao
    Department of Oral and Maxillofacial Surgery, School of Dentistry, Showa University
  • SUMI Yasunori
    Division of Oral and Dental Surgery, Department of Advanced Medicine, National Center for Geriatrics and Gerontology
  • HONDA Yasutoshi
    Department of Oral and Maxillofacial Radiology, Graduate School of Medicine and Dentistry, Okayama University

Bibliographic Information

Other Title
  • 四次元ＭＲＩの矢状断画像によるえん下運動の観察

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Description

Four-dimensional magnetic resonance imaging (4D-MRI) was used to depict a normal swallow.<BR>At first, 2D cine MRI was performed to obtain 35 imageseach of 9 slices at a frame rate of 66 msec. For 4D MRI, the images were reconstructed to three-dimensions according to the time sequence. The sequence for MR images was fast gradient echo (multi-slice). The syn chronizedsampling method was applied using an exter naltriggering device. The subject was a normal volun teerwho had given informed consent.<BR>The results proved that 4D-MRI for normal swallow of feredseveral benefits in depicting the closing and open ingmovement of the nasopharynx, larynx and esophagus in spite of less contrast of bolus in comparison with 2DMRI or VF. Further study on 4D-MRI will yield better information for clarifying the details of swallowing movement.

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Details 詳細情報について

  • CRID
    1390001206435611392
  • NII Article ID
    130004114516
  • DOI
    10.11277/stomatology1952.54.309
  • ISSN
    21850461
    00290297
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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