相关实验视频

Updated: Jul 12, 2025

Radiotracer Administration for High Temporal Resolution Positron Emission Tomography of the Human Brain: Application to FDG-fPET

Radiotracer Administration for High Temporal Resolution Positron Emission Tomography of the Human Brain: Application to FDG-fPET

Published on: October 22, 2019

微型和灵活的百祖卡弹用于高场MRI

Shuyang Chai¹, Xinqiang Yan²

¹Department of Electrical and Computer Engineering, Vanderbilt University, Nashville, TN 37232, USA; Vanderbilt University Institute of Imaging Science, Vanderbilt University Medical Center, Nashville, TN 37232, USA.

Journal of magnetic resonance (San Diego, Calif. : 1997)

|October 28, 2023

概括

一个新的灵活的气球设计增强了磁共振成像 (MRI) 射频线圈阵列. 这项创新提高了线圈的灵活性,稳定性,并保持了高传输效率,以获得更好的成像.

科学领域:

医疗成像医学成像
电气工程电气工程
材料科学材料科学材料科学

背景情况:

无线电频 (RF) 线圈中的刚性气球阻碍了MRI的灵活性和制造.
现有的射频线圈设计面临患者舒适性和图像质量的局限性,原因是体积庞大的组件.

研究的目的:

开发和验证用于射频线圈阵列的小型,灵活的气球.
在MRI环境中评估柔性球杆的性能和稳固性.

主要方法:

用超灵活的管和灵活的同轴电容器取代了刚性气球组件.
通过电磁模拟和实验室测试验证设计.
将灵活的balun集成到一个4通道线圈阵列中,并评估阻抗匹配和合.

主要成果:

实现了 -15.8 dB 的常态排斥比率.
与非气球线圈相比,在阻抗变化 (例如"手动效应") 方面表现出更好的强度.
保持高传输效率,与传统设计相提并论.

结论:

拟议的灵活的球形设计显著提高了射频线圈阵列的灵活性和可制造性.
这一创新为改善MRI性能和患者体验提供了有前途的解决方案.
灵活的balun是坚固的,并保持基本的射频性能特征.

关键词:

巴伦·巴伦 (Balun Balun) 是一个古老的城市.常态电流是普通模式的电流.灵活的线圈线圈.射频线圈是一个RF线圈.这是一个SNR,SNR是SNR.

更多相关视频

MRM Microcoil Performance Calibration and Usage Demonstrated on Medicago truncatula Roots at 22 T

MRM Microcoil Performance Calibration and Usage Demonstrated on Medicago truncatula Roots at 22 T

Published on: January 16, 2021

Magnetically-Assisted Remote Controlled Microcatheter Tip Deflection under Magnetic Resonance Imaging

Magnetically-Assisted Remote Controlled Microcatheter Tip Deflection under Magnetic Resonance Imaging

Published on: April 4, 2013

相关概念视频

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...