论文标题

多模型:同时测量B1+,B0,T1/M0,T2,T2*的梯度变质序列和切片的脂肪分数

multiMap: A Gradient Spoiled Sequence for Simultaneously Measuring B1+, B0, T1/M0, T2, T2*, and Fat Fraction of a Slice

论文作者

Dwork, Nicholas, Kerr, Adam B., Johnson, Ethan M. I., Baron, Corey A., Vasanawala, Shreyas S., Larson, Peder E. Z., Bush, Adam M., Pauly, John

论文摘要

我们提出了多台化,这是一种可以同时生成几个定量图的单个扫描。该序列以时间效率的方式获取多个图像,可以为T_2,T2*,主要和发射现场不均匀性,T_1:平衡磁化以及水和脂肪含量建模。构建序列,以便分离参数之间的交叉依赖性。因此,可以独立估计每个参数。所有参数的估计值均显示在瓶子,大脑和膝盖上。将结果与已建立技术的估计值进行比较。

We propose multiMap, a single scan that can generate several quantitative maps simultaneously. The sequence acquires multiple images in a time-efficient manner, which can be modeled for T_2, T2*, main- and transmit-field inhomogeneity, T_1:equilibrium magnetization, and water and fat content. The sequence is constructed so that cross-dependencies between parameters are isolated. Thus, each parameter can be estimated independently. Estimates of all parameters are shown on bottle phantoms, the brain, and the knee. The results are compared to estimates from established techniques.

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