QUADRATURE RF COIL ARRAYS FOR MRI OF THE HUMAN BREAST

用于人体乳腺 MRI 的正交射频线圈阵列

• 批准号: 3493299
• 负责人: George R Duensing
• 金额: $ 5万
• 依托单位: INVIVO CORPORATION
• 依托单位国家: 美国
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-02-12 至 1993-08-11
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/3493299
• 关键词: biomedical equipment development; breast neoplasm /cancer diagnosis; diagnosis design /evaluation; magnetic resonance imaging; mammography; noninvasive diagnosis; radiowave radiation

The long range objective of this proposal is to develop a radio frequency (RF) antenna array for optimized magnetic resonance imaging (MRI) of the human breast. Recent MRI technique development has made possible sensitive detection of breast cancer and other abnormalities, but the major manufacturers of MRI systems have not provided high performance RF coils which would help make these techniques practical for imaging the breast. This proposal seeks to develop an rf coil array which will provide at least a 40% improvement in signal to noise over available technology and the potential for simultaneous acquisition from both breasts in the time usually required for single coil imaging. These goals will be accomplished by the application of a generalized theory of quadrature reception which is unique and proprietary technology. RF coil geometries are proposed which provide the proper orientation to the spin system with elements arranged on a hemispheric form to be non-interacting and noise independent. The result of this work would be an optimal coil array which would make possible shorter imaging times and/or higher resolution images on the 2,000 plus MRI systems for which the array could be readily adapted.

该提案的长期目标是开发无线电频率 (RF) 天线阵列，用于优化磁共振成像 (MRI) 人类的乳房。 最近 MRI 技术的发展使 乳腺癌和其他异常的敏感检测，但 MRI系统主要制造商尚未提供高性能射频 线圈，这将有助于使这些技术可用于成像 胸部。 该提案旨在开发一种射频线圈阵列，它将 与现有产品相比，信噪比至少提高 40% 技术以及同时获取两者的潜力 乳房在单线圈成像通常所需的时间内进行。 这些 目标将通过应用广义理论来实现 正交接收是独特的专有技术。 射频线圈 提出了为旋转提供正确方向的几何形状 元素排列成半球形且不相互作用的系统 和噪声无关。 这项工作的结果将是一个最佳线圈 阵列，这将使得成像时间更短和/或更高 该阵列可以在 2,000 多个 MRI 系统上提供分辨率图像 很容易适应。