Comparative Analysis on Surface Coil for 1.5T MRI Scanner

2015 Fifth International Conference on Advances in Computing and Communications (ICACC) Pub Date : 2015-09-01 DOI:10.1109/ICACC.2015.98

Abhay M. Morey, S. Bhujade, Tapas K. Bhuiya, S. Thakur, T. Pandey

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引用次数: 1

Abstract

MRI scanner is the most important diagnostic tool that aids in the diagnosis of diseases and offers most sensitive and non-invasive way of Imaging. The sophisticated tool helps clinician to understand the cause of patient's particular health issue. RF Surface coils are used in MRI for better signal reception as they are more sensitive to signal close to the coil, thus detecting signals from organ of interest more efficiently. Hence attempts are made in order to improve the performance of the coil with respect to its signal to noise ratio, penetration depth, Specific Absorption Rate, etc. In this paper, we have designed, simulated and fabricated two designs of MRI surface coil for 1.5 Tesla scanner. A balun is designed to feed the unbalanced coaxial signal to a balanced coil. Significant improvement in the Q factor and reduction of the bandwidth was observed in Design B which improves SNR of the coil as compared to traditional surface coil Design A. Simulation and experimental result have been compared to validate the proposed design.

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1.5T MRI扫描仪表面线圈的对比分析

MRI扫描仪是辅助疾病诊断的最重要的诊断工具，提供了最敏感和无创的成像方式。这个复杂的工具可以帮助临床医生了解患者特定健康问题的原因。射频表面线圈在MRI中用于更好的信号接收，因为它们对靠近线圈的信号更敏感，从而更有效地检测来自感兴趣器官的信号。因此，为了提高线圈在信噪比、穿透深度、比吸收率等方面的性能，进行了尝试。本文设计、模拟并制作了两种用于1.5特斯拉扫描仪的MRI表面线圈。平衡器的作用是将不平衡的同轴信号送入平衡线圈。与传统的表面线圈设计a相比，设计B中Q因子和带宽的显著改善提高了线圈的信噪比。仿真和实验结果进行了比较，验证了所提出的设计。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2015 Fifth International Conference on Advances in Computing and Communications (ICACC)

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