磁共振多通道射频接收线圈性能评估

Performance Evaluation of Multi-channel Radio Frequency Receiver Coils for Magnetic Resonance Imaging

磁共振成像技术追求高信噪比和快速扫描。与单通道线圈相比,多通道线圈具有高信噪比、高分辨率和成像速度快的特点。为服务于射频线圈设计和制作,开发了基于磁共振k空间数据的多通道射频线圈性能评估软件。此软件可以准确方便地计算多通道线圈噪声耦合矩阵和信噪比。

Magnetic resonance imaging（MRI） pursues high signal-to-noise ratio（SNR） and fast acquisition. Compared with single channel radiofrequency（RF） coil, multi-channel RF coils have the features of high SNR, high resolution and parallel imaging. One software for performance evaluation based on k-space data from multi-channel coils was developed, which serves to help the design and production of RF coils. Specifi cally, it facilitates to calculate the noise covariance matrix, SNR and geometry factor of multi-channel coils more precisely by using this software.