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远程调节的接收线圈用于高分辨率的干预性心脏磁共振成像

Sina Marhabaie¹, Marylène Delcey^2,3, Dounia El Hamrani²

¹Laboratoire D'Imagerie Biomédicale Multimodale Paris Saclay, Université Paris-Saclay, CNRS, Inserm, Orsay, France.

Frontiers in cardiovascular medicine

|November 29, 2023

概括

一个新的,小的MRI接收器线圈提供亚毫米分辨率,用于心律不整的消退指导. 这项技术增强了实时成像和温度监测,改善了微创心脏手术.

科学领域:

生物医学工程生物医学工程
医疗成像医学成像
心血管干预心血管干预

背景情况:

心脏MRI需要高分辨率,以指导心律失常的废除.
传统的MRI线圈缺乏足够的信号噪声比 (SNR) 和空间选择性.

研究的目的:

开发和评估用于高分辨率心脏成像的小型MRI接收器线圈.
评估MR兼容治疗导管的远程主动解技术.

主要方法:

一个2厘米圆形的MRI接收器线圈被开发和测试在1.5T.
进行了高分辨率的解剖学和MR温度成像.
模拟和验证了使用一个或两个电缆的远程主动解调方法.

主要成果:

实现了170微米的平面分辨率,用于ex vivo跳动的心脏解剖成像.
实时MR-温度成像证明在亚毫米分辨率下<0.1°C的不确定性.
远程主动脱显示了与传统方法相比的脱效率.

结论:

小表面线圈显示了MRI引导的微创心律不整治疗的潜力.
拟议的远程调节简化了设备的构造,并降低了一次性设备的成本.

关键词:

在MR-热度测试中,这就是为什么MRI是MRI.导管导管是指一个导管导管.线圈设计的设计.调整后的调整调整后的调整心灵的心灵心灵的心灵心灵的心灵干预干预干预干预干预干预

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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...