書誌事項
- タイトル別名
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- Lumbar Spinal Nerve Roots Imaging Using Balanced Sequence with Inversion Recovery (IR) Pulse
- Inversion Recovery IR パルス オ ヘイヨウ シタ Balanced シーケンス ニ ヨル ヨウツイ シンケイ コン イメージング
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We devised a method for visualizing the distal portion of lumbar spinal nerve roots in the direction of the long axis using a three-dimensional balanced sequence with inversion recovery pulse, and we established the imaging parameters. This pulse sequence was used with the following parameters: 260 mm field of view, 4.8 ms repetition time, 2.4 ms echo time, 90 degree flip angle, 1.5 mm slice thickness (0.75 mm overlap), and low-high radial k-space profile order. We assessed the signal intensity and contrast for the phantom and healthy volunteer images with different inversion times (TI). Moreover, we evaluated this method by using the optimal TI in clinical cases. The optimal TI obtained from the phantom and human studies was 600 ms. In clinical cases, this method with 600 ms of TI provided the best definition in images of abnormal pathway and compression of the lumbar spinal nerve roots. Our imaging method makes it possible to clearly and noninvasively visualize the lumbar spinal nerve roots.
収録刊行物
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- 日本放射線技術学会雑誌
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日本放射線技術学会雑誌 67 (4), 354-359, 2011
公益社団法人 日本放射線技術学会
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詳細情報 詳細情報について
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- CRID
- 1390282681338607360
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- NII論文ID
- 10027963777
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- NII書誌ID
- AN00197784
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- ISSN
- 18814883
- 03694305
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- NDL書誌ID
- 11100623
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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
- NDL
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- 使用不可