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-31:一种用于3D B₁场振幅和相位测量的桌面方法

V Brandejsky¹, O Leinhard Dahlqvist², E Lund¹

¹Dept of Radiation Physics, and Depth of Health, Medicine and Caring Sciences, Linköping University, Linköping, Sweden.

Biochimica et biophysica acta. Biomembranes

|February 26, 2024

概括

一种新方法提供了MRI线圈的高分辨率3D磁场 (B1) 映射,独立于扫描仪. 这使得在生物和医学MR应用中能够进行精确的量化和强度补偿.

科学领域:

磁共振成像 (MRI) 是一种磁共振成像.
生物物理学的生物物理.
医学物理医学物理

背景情况:

准确的B1场映射对于定量MRI和MRS至关重要.
现有的方法通常依赖于MRI扫描仪,可能无法捕获完整的B1场向量组件或相位信息.

研究的目的:

介绍一种新的,扫描仪独立的方法,用于高空间分辨率的3D B1场分布测量.
为了能够自动获取各种MR线圈的完整磁场向量组件图.
为了验证方法的准确性与基于扫描仪的测量.

主要方法:

开发一种用于3D B1场地绘制的新型测量技术.
完整的磁场向量组件映射的自动化数据采集协议.
结果与使用传统MR扫描仪获得的B1场幅图进行比较.

主要成果:

成功实施了一种用于高空间分辨率,3D B1场地绘制的新方法.
获取完整的接收和发送B1场地图,包括相位信息.
通过与基于MR扫描仪的测量进行比较,验证拟议方法的准确性.

结论:

提出的方法为B1场地绘制提供了一种多功能和准确的方法,独立于MR扫描仪.
获得的B1场地图对于MRS中的绝对代谢物量化和成像中的强度补偿非常有价值.
这种技术有可能促进线圈开发,测试以及各种生物和医学MR应用.

关键词:

B(1) 现场绘制地图.异质核磁共振是一种磁共振.射频频段测量射频频段测量射频频段测量互惠原则是互惠的原则.

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