REDUCE RF POWER REQUIREMENTS OF MULTISLICE IMAGING W/ SINGLE ADIABATIC FREQUENCY

最初提出的目标之一是建立 用于使用B1独立的对比生成的磁化准备 绝热脉冲用于各种成像应用，以克服B1 在高场遇到的变化，并使用表面线圈， 用于成像的发射和接收，在高场是必需的 这是由于使用“体”线圈的困难。 这样的对比制剂 最初是为心脏“标记”而开发和实施的， 分段BIR-4或绝热DANTE脉冲。 去年，一部小说 自旋回波成像中的绝热对比度制备也已经 引入，产生出色的对比度和降低功耗 在4 T的人脑成像中沉积。

One of the originally proposed goals was to establish magnetization preparation for contrast generation using B1 independent adiabatic pulses for a variety of imaging applications to overcome B1 variations encountered at high fields and use surface coils for transmission and reception for imaging, a necessity at the high fields due to difficulties of using "body" coils. Such contrast preparations were initially developed and implemented for cardiac "tagging" using segmented BIR-4 or adiabatic DANTE pulses. Last year, a novel adiabatic contrast preparation in spin-echo imaging has also been introduced, yielding excellent contrast and a reduction in power deposition in human brain imaging at 4T.