Adiabatic refocusing pulse which compensates for variable rf power and off-resonance effects.

Adiabatic refocusing pulse which compensates for variable rf power and off-resonance effects.
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绝热重聚焦脉冲,可补偿可变射频功率和偏共振效应。

DOI:
10.1002/mrm.1910040510
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发表时间:
1987
影响因子:
3.3
通讯作者:
Pegg,DT
Pegg,DT
中科院分区:
医学3区
文献类型:
--
作者:
Bendall,MR;Garwood,M;Uğurbil,K;Pegg,DT

文献摘要

被引文献

相似文献

绝热180°反转射频脉冲可以通过在脉冲中间反转有效场来转换为180°重聚焦脉冲。合适的脉冲对射频场强的较大变化保持不敏感,并在合理的频谱宽度上起作用。这种脉冲可以在利用表面线圈的研究中得到应用。©1987学术出版社,Inc.
Adiabatic 180° inversion rf pulses can be converted to 180° refocusing pulses by inverting the effective field midway during the pulse. Suitable pulses retain insensitivity to large variations in the rf field strength and act over a reasonable spectral width. Such pulses may find application in studies utilizing surface coils. © 1987 Academic Press, Inc.