四次元MRIの矢状断画像によるえん下運動の観察
書誌事項
- タイトル別名
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- 4-Dimensional MRI sagittal sections for depicting swallowing movement
説明
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.
収録刊行物
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- 日本口腔科学会雑誌
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日本口腔科学会雑誌 54 (3), 309-315, 2005
特定非営利活動法人 日本口腔科学会
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詳細情報 詳細情報について
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- CRID
- 1390001206435611392
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- NII論文ID
- 130004114516
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- ISSN
- 21850461
- 00290297
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可