書誌事項
- タイトル別名
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- Examination of the Validity of RF Power Determination by Auto Prescan in T_1-weighted Images
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説明
In the sequence of spin echo MRI systems, RF power selects the output value from which the signal intensity of the whole photography volume changes to the maximum as a 90-degree pulse in auto tuning during prescanning by the SIGNA HORIZON LX 1.0 Tesla ver. 8.3. When it consists of two or more organizations like a human body, although the RF power to which signal intensity serves as the maximum is in agreement with the RF power of a 90-degree pulse if it is a uniform phantom, the RF power from which signal intensity reaches the maximum differs for every organization. When we determined RF power by the signal intensity of two or more whole organizations in this experiment, it was found that RF power was strongly influenced by a high signal organization. Moreover, if CNR in two or more organizations is considered, T_1 contrast will be emphasized for the direction of an angle less than 90 degrees. It was possible for the same effect to be acquired by lowering the power of the RF pulse and emphasizing T_1 contrast.
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 58 (2), 292-296, 2002
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
- 1390282681366830208
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- NII論文ID
- 110003445396
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- NII書誌ID
- AN00197784
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- ISSN
- 18814883
- 03694305
- http://id.crossref.org/issn/03694305
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- PubMed
- 12527868
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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
- Crossref
- CiNii Articles
- OpenAIRE
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- 抄録ライセンスフラグ
- 使用不可
