K空间填充策略对基于FLASH序列的APT图像脂肪伪影的影响
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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
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PANG Qifan, WANG Zhichao, WU Yupeng, LI Jianqi
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表2 五种K空间填充策略下的不同K空间采集顺序
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Table 2 Different K-space acquisition sequences under five K-space filling strategies
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K空间 相位编码顺序 | 单次饱和与 顺序采集 | 单次饱和与 中心优先采集 | 分段饱和与 顺序采集 | 分段饱和与 中心优先采集 | 分段饱和与 重排中心优先采集 | 1 | 1 | 127 | #1-1 | #4-31 | #3-32 | 2 | 2 | 125 | #1-2 | #4-29 | #1-32 | : | : | : | : | : | : | 16 | 16 | 97 | #1-16 | #4-1 | #1-25 | 17 | 17 | 95 | #1-17 | #3-31 | #3-24 | : | : | : | : | : | : | 32 | 32 | 65 | #1-32 | #3-1 | #1-17 | 33 | 33 | 63 | #2-1 | #2-31 | #3-16 | : | : | : | : | : | : | 48 | 48 | 33 | #2-16 | #2-1 | #1-9 | 49 | 49 | 31 | #2-17 | #1-31 | #3-8 | : | : | : | : | : | : | 63 | 63 | 3 | #2-31 | #1-3 | #3-1 | 64 | 64 | 1 | #2-32 | #1-1 | #1-1 | 65 | 65 | 2 | #3-1 | #1-2 | #2-1 | 66 | 66 | 4 | #3-2 | #1-4 | #4-1 | : | : | : | : | : | : | 80 | 80 | 32 | #3-16 | #1-32 | #4-8 | 81 | 81 | 34 | #3-17 | #2-2 | #2-9 | : | : | : | : | : | : | 96 | 96 | 64 | #3-32 | #2-32 | #4-16 | 97 | 97 | 66 | #4-1 | #3-2 | #2-17 | : | : | : | : | : | : | 112 | 112 | 96 | #4-16 | #3-32 | #4-24 | 113 | 113 | 98 | #4-17 | #4-2 | #2-25 | : | : | : | : | : | : | 127 | 127 | 126 | #4-31 | #4-30 | #2-32 | 128 | 128 | 128 | #4-32 | #4-32 | #4-32 |
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