K空间填充策略对基于FLASH序列的APT图像脂肪伪影的影响
The Impact of K-Space Filling Strategy on Fat Artifacts in APT Imaging Based on FLASH Sequence
K空间填充策略对基于FLASH序列的APT图像脂肪伪影的影响 |
| 逄奇凡, 王志超, 武玉朋, 李建奇 |
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The Impact of K-Space Filling Strategy on Fat Artifacts in APT Imaging Based on FLASH Sequence |
| PANG Qifan, WANG Zhichao, WU Yupeng, LI Jianqi |
| 图3 不考虑皮下脂肪时仿真得到的δ -3.5处饱和图像（第一行）、δ 3.5处饱和图像（第二行）和MTRasym分布图（第三行）. (a, f, k)单次饱和与顺序采集方法；(b, g, l)单次饱和与中心优先采集方法；(c, h, m)分段饱和与顺序采集方法；(d, i, n)分段饱和与中心优先采集方法；(e, j, o)分段饱和与重排中心优先采集方法 |
| Fig. 3 Simulated saturation images with saturation frequency at δ -3.5 (the first row) and δ 3.5 (the second row), and MTRasym maps (the third row), obtained without considering scalp fat. (a, f, k) single saturation with sequential acquisition; (b, g, l) single saturation with center-out acquisition; (c, h, m) segmental saturation with sequential acquisition; (d, i, n) segmental saturation with center-out acquisition; and (e, j, o) segmental saturation with reordered center-out acquisition |
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