Parallel RF transmission in MRI
Parallel RF transmission in MRI
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DOI：
10.1002/nbm.1049
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发表时间：
2006-05-01
影响因子：
2.9
通讯作者：
Börnert, P
中科院分区：
文献类型：
--
作者：
Katscher, U;Börnert, P
随着并行成像的发展，并行传输描述了多个RF发射线圈的使用。可以应用并行传输来改善RF激励，特别是多维空间选择性RF激励。例如，并行传输能够在二维或三维中缩短空间选择性RF脉冲，或者最小化发生的SAR。一个潜在的主要应用可能是补偿患者引起的B不均匀性，特别是在高主场。本文概述了这一新的传输方法的选定方面。并行传输的基本原理进行了讨论，初步的实验证明进行了说明，并概述了并行传输的线圈设计上的误差传播的影响。版权所有（C）2006约翰威利父子有限公司
Following the development of parallel imaging, parallel transmission describes the use of multiple RF transmit coils. Parallel transmission can be applied to improve RF excitation, in particular, multidimensional, spatially selective RF excitation. For instance, parallel transmission is able to shorten spatially selective RF pulses in two or three dimensions, or to minimize the occurring SAR. One potential major application might be the compensation of patient-induced B, inhomogeneities, particularly at high main fields. This paper provides an overview of selected aspects of this new transmission approach. The basic principles of parallel transmission are discussed, initial experimental proofs are described, and the impact of error propagation on coil design for parallel transmission is outlined. Copyright (C) 2006 John Wiley & Sons, Ltd.