Listerud J, Mitchell J, Bagley L, Grossman R
Department of Radiology, Hospital of the University of Pennsylvania, Philadelphia 19104, USA.
Magn Reson Med. 1996 Aug;36(2):320-5. doi: 10.1002/mrm.1910360220.
Inversion recovery may be used to suppress signal from cerebrospinal fluid, a technique which has been named "fluid attenuated with inversion recovery" (FLAIR). This report describes interleaving a slice selective inversion pulse within a rapid spin-echo sequence to obtain the desirable contrast characteristics of FLAIR in imaging times comparable to standard rapid spin echo. Additionally, the pulse repetition time is allowed to float above a defined minimum, which can further shorten scan times and dramatically ease the optimization process. The optimized interleaved sequence is referred to as OIL FLAIR.
反转恢复可用于抑制脑脊液信号，这项技术被称为“液体衰减反转恢复”（FLAIR）。本报告描述了在快速自旋回波序列中插入一个层面选择反转脉冲，以在与标准快速自旋回波相当的成像时间内获得FLAIR所需的对比特征。此外，允许脉冲重复时间在定义的最小值之上浮动，这可以进一步缩短扫描时间并显著简化优化过程。优化后的插入序列被称为OIL FLAIR。
