Capuani S, Casieri C, De Luca F, Maraviglia B, Raza G H
Dipartimento di Fisica, Università La Sapienza, Roma, Italy.
Magn Reson Imaging. 1998 Dec;16(10):1289-94. doi: 10.1016/s0730-725x(98)00122-2.
The two-dimensional FT Imaging of 13C-glucose obtained with twin spin-echo double resonance sequence is presented. The images have been obtained by a doubly tuned surface coil on samples containing water and 13C-enriched glucose in water. It is shown, both theoretically and experimentally, that the whole editing capability of the twin spin-echo double resonance imaging sequence is also preserved in the presence of the radiofrequency field inhomogeneity produced by the surface coil. As in an efficient selective irradiation method, the enhancement in the signal-to-noise ratio with respect to the direct 13C detection, depends on the number of protons J-coupled to 13C.
本文展示了利用双自旋回波双共振序列获得的13C-葡萄糖二维傅里叶变换成像。这些图像是通过一个双调谐表面线圈在含有水和水中富含13C的葡萄糖的样品上获得的。理论和实验均表明，在表面线圈产生的射频场不均匀性存在的情况下，双自旋回波双共振成像序列的整体编辑能力仍然得以保留。如同在一种有效的选择性照射方法中一样，相对于直接13C检测，信噪比的提高取决于与13C J耦合的质子数量。
