van Gelderen P, Moonen C T, Duyn J H
NIH in Vivo NMR Research Center, BEIP, NCRR, Bethesda, MD 20892, USA.
Magn Reson Med. 1995 Mar;33(3):439-42. doi: 10.1002/mrm.1910330320.
A single shot MR imaging technique insensitive to magnetic susceptibility effects is introduced. The method allows multislice imaging in areas with poor magnetic field homogeneity, and can be implemented on standard clinical scanners. The design is based on the combination of a BURST excitation with multiple RF refocusing pulses. Images were obtained at 1.5 T on phantoms and human brain with a matrix size of 64 x 54 and a resolution of 4 x 4 mm in 230 ms.
介绍了一种对磁化率效应不敏感的单次磁共振成像技术。该方法允许在磁场均匀性较差的区域进行多层成像,并且可以在标准临床扫描仪上实现。该设计基于BURST激发与多个射频重聚焦脉冲的组合。在1.5T下,使用矩阵大小为64×54且分辨率为4×4mm的体模和人脑在230ms内获得图像。