利用T1 定量图谱测定体模钆塞酸二钠溶液浓度并探索其最佳扫描序列

【目的】评估利用T1Mapping(T1 定量图谱)T1 值测定体模钆塞酸二钠(Gd-EOB-DTPA)溶液浓度的准确性,确定较优的扫描序列。【方法】制备不同浓度(0.007-1.814 g/L)的Gd-EOB-DTPA 溶液体模(n=12)并行MRI 扫描。扫描序列包括T1 加权(T1WI)序列(opp-phase、IR、SE、T1-fl2d、T1-vibe、T1-3D)及T1 定量图谱(T1Mapping) 序列(VIBE_Mapping、T1-tra-3D_Mapping、T1-fl2d_Mapping)。在T1WI 中测量体模溶液Sp 及同层参照物Sm,计算信噪比(SNR)(Sp/Sm...

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Bibliographic Details
Main Authors: 冯艳青, 蔡华崧, 李子平, 冯仕庭, 彭振鹏
Format: Article
Language:zho
Published: Editorial Office of Journal of Sun Yat-sen University 2020-01-01
Series:Zhongshan Daxue xuebao. Yixue kexue ban
Subjects:
Online Access:http://xuebaoyx.sysu.edu.cn/zh/article/43723420/
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