Intensity correction of phased-array surface coil images
Intensity correction of phased-array surface coil images
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DOI：
10.1002/mrm.1910350419
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发表时间：
1996-04-01
影响因子：
3.3
通讯作者：
Weinberger, E
中科院分区：
文献类型：
--
作者：
Murakami, JW;Hayes, CE;Weinberger, E
相控阵线圈将其小元件表面线圈的高信噪比（SNR）性能分布在整个阵列覆盖的较大区域上。由于元件表面线圈的灵敏度分布不均匀，导致在相控阵附近的图像信号很高，而在远离相控阵的图像信号很低。本文提出了一种校正线圈相关强度变化的后处理算法。通过校正几个不同的仅接收相控阵表面线圈获得的志愿者图像来评估该算法的性能。
Phased-array coils distribute the high signal-to-noise ratio (SNR) performance of their small component surface coils over the larger area covered by the entire array. The inhomogeneous sensitivity profiles of the component surface coils result in images with very high signal near the phased-array and decreased signal far from the array. This paper presents a postprocessing algorithm for correcting these coil-related intensity variations. The algorithm's performance was evaluated by correcting images of volunteers acquired with several different receive-only phased-array surface coils.