Pope J M, Eberl S
School of Physics, University of New South Wales, Kensington, N.S.W., Australia.
Magn Reson Imaging. 1988 Mar-Apr;6(2):157-70. doi: 10.1016/0730-725x(88)90445-6.
The performance of a range of "depth pulses" and related pulse sequences for achieving enhanced spatial resolution in surface coil magnetic resonance spectroscopy (MRS) has been compared both experimentally and by computer simulation. A detailed analysis of the spatial selectivity of these sequences both on- and off-resonance suggests that the problem of combining good spatial resolution with adequate bandwidth has yet to be fully resolved. These and related problems, such as the shape of the sensitive volume and its dependence on resonance offset, are likely to limit the use of depth pulses, particularly where alternative methods of spatial selection are available.
已通过实验和计算机模拟比较了一系列“深度脉冲”及相关脉冲序列在表面线圈磁共振波谱（MRS）中实现增强空间分辨率的性能。对这些序列在共振和非共振时的空间选择性进行的详细分析表明，将良好的空间分辨率与足够的带宽相结合的问题尚未得到充分解决。这些以及相关问题，如敏感体积的形状及其对共振偏移的依赖性，可能会限制深度脉冲的使用，特别是在有其他空间选择方法的情况下。
