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一个60通道高密度的灵活接收阵列用于儿科腹部MRI

Wonje Lee¹, Yunjeong Stickle², Clyve Follante²

¹Department of Radiology, Stanford University, Stanford, California, USA.

Magnetic resonance in medicine

|February 4, 2025

概括

研究人员为儿童开发了一种灵活,高密度的MRI线圈阵列. 这种新设计显著提高了在3T的儿科患者的成像加速和分辨率.

科学领域:

医疗成像医学成像
生物物理学的生物物理.

背景情况:

传统的MRI线圈在儿科患者中提供有限的并行成像性能.
加快MRI采集对于减少儿童的扫描时间和运动器件至关重要.

研究的目的:

为了提高儿童患者的MRI成像加速3特斯拉 (3T) 使用专用,灵活,高密度线圈设计.
为了解决幼儿标准MRI线圈的低最佳性能.

主要方法:

设计和建造一个高度灵活的小循环阵列,具有双转循环配置.
利用全波模拟,微型料板分配和优化的电缆管理.
使用幻影实验和成人和儿科志愿者的体内研究来评估性能,与商业卷进行比较.

主要成果:

双转循环配置显示,与单转循环相比,预放大器脱阻抗更高.
灵活的线圈阵列支持了广泛的关键重叠,这对于适应性至关重要.
幻影和体内实验研究都显示出优异的并行成像性能和小循环阵列的高空间分辨率.

结论:

一个专门的高密度线圈阵列与最小干扰使灵活的形式因子和更高的成像加速.
开发的线圈阵列在改善儿科患者常规临床成像效率方面显示出有希望的结果.
这项创新有可能提高MRI扫描期间的诊断准确度和患者舒适度.

关键词:

并行成像并行成像儿科核磁共振成像 (MRI) 的使用.在RF线圈阵列中,

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Magnetic Resonance Imaging

Magnetic Resonance Imaging

Magnetic resonance imaging (MRI) is a noninvasive medical imaging technique based on a phenomenon of nuclear physics discovered in the 1930s, in which matter exposed to magnetic fields and radio waves was found to emit radio signals. In 1970, a physician and researcher named Raymond Damadian noticed that malignant (cancerous) tissue gave off different signals than normal body tissue. He applied for a patent for the first MRI scanning device in clinical use by the early 1980s. The early MRI...