書誌事項
- タイトル別名
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- Feasibility of T1 map on Free-Breathing 3D Look-Locker Sequence with Radial Acquisition in the Whole Upper Abdomen [Presidential Award Proceedings]
抄録
<p> T1 map of the liver was used to estimate the liver function by quantifying the uptake of the gadoxetic acid contrast agent. The modified Look-Locker inversion recovery (MOLLI) sequence is limited by the number of slices, and the variable flip angle method measures T1 values from two points, which may include substantial errors. Breath-hold is essential for acquire a T1 map of the liver for both sequences. In this study, we aimed to develop a free-breathing three-dimensional (3D) Look-Locker sequence with radial acquisition (3D Radial LL) and assess the quantitative accuracy of the T1 map. MOLLI and 3D Radial LL were acquired in seven healthy volunteers (33.6±6.6 years) to evaluate the accuracy of T1 values. MOLLI was imaged with a breath-hold sequence used as a T1 native (5s-[3s]-3s) on cardiac MRI. The acquisition time in the free-breathing 3D Radial LL sequence was set to 5 min to allow clinical examination. The differences in the T1 values of the liver, pancreas, and spleen between the two sequences in the same volunteers were 3.0±1.7%, 3.8±4.3%, and 2.1±1.4%, respectively. The T1 map using the free-breathing 3D Radial LL demonstrated equivalent T1 values compared with MOLLI in the upper abdomen.</p>
収録刊行物
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- 日本磁気共鳴医学会雑誌
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日本磁気共鳴医学会雑誌 43 (2), 76-78, 2023-05-15
日本磁気共鳴医学会
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詳細情報 詳細情報について
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- CRID
- 1390859326215396224
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- ISSN
- 24340499
- 09149457
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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
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- 抄録ライセンスフラグ
- 使用不可