Parallel RF transmission in MRI

被引：173

作者：

Katscher, U ^{[1
]}

Börnert, P ^{[1
]}

机构：

[1] Philips Res Labs, D-22335 Hamburg, Germany

来源：

NMR IN BIOMEDICINE | 2006年 / 19卷 / 03期

关键词：

parallel transmission; transmit SENSE; parallel excitation; spatially selective RF pulses; multidimensional RF pulses; RF coil array design; SAR; parallel imaging;

D O I：

10.1002/nbm.1049

中图分类号：

Q6 [生物物理学];

学科分类号：

071011 [生物物理学];

摘要：

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.

引用

页码：393 / 400

页数：8

共 45 条

[1]

Transmit and receive transmission line arrays for 7 tesla parallel imaging [J].