DWI常用序列有自旋回波序列 (SE—DWI)、回波平面成像序列(EPI-DWI)、稳态自由进动序列(SSFP—DWI),各有优 缺点。SE—DWI序列可计算ADC值,但成像时间长,对运动伪影较敏感。
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6.回波平面成像序列(echo planar imaging,EPI) 是当今最快的MR成像技术,但其信噪比和分辨率较低,直到1993年才应用于临床。
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...改良的快速自旋回波序列(fast spin echo,FSE-XL)、真稳态进动快速成像序列(fast imaging employing steady-state acquisition,FIESTA)和弥散加权平面回波序列(diffusion-weighted echo planar imaging..
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·2,447,543篇论文数据,部分数据来源于NoteExpress
快速成像序列大大减少运动伪影,两种序列诊断结果没有差别。
Motion artifacts were significantly reduced with the fast sequence, and the final MRI diagnosis did not differ between the two sequences.
目的:评价不同MR成像序列对发育期长骨生长板的显示能力。
Aim: To study the visualization capability of MR pulse sequences in detecting the developmental growth-plate of long bones.
通过合理选择金属材料,合理选择成像序列和参数可以减轻伪影。
Artifacts can be alleviated by using proper metallic materials or choosing proper imaging sequence and parameters.
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