McKinnon G C, Boesiger P
Institute of Biomedical Engineering and Medical Informatics, Swiss Federal Institute of Technology, Zurich.
Magn Reson Med. 1988 Nov;8(3):355-61. doi: 10.1002/mrm.1910080313.
A pulse sequence is presented for performing localized lactate-edited proton spectroscopy in the whole-body environment. The sequence is optimized for relatively low field strength (1.5-T) clinical measurements. Characteristics of this method of lactate editing, which makes it more suitable for clinical applications than previous methods, include the following: The "one shot" nature of the method makes it relatively insensitive to patient motion; water suppression is high as all 90 degrees pulses are binomial pulses; and very narrow band rf pulses, such as used in high-field lactate-editing sequences, but which are necessarily very long at low fields, are not required. Further, this lactate editing scheme can be very easily combined with localized spectroscopic measurements.
本文介绍了一种用于在全身环境中进行局部乳酸编辑质子光谱分析的脉冲序列。该序列针对相对低场强(1.5-T)的临床测量进行了优化。这种乳酸编辑方法的特点使其比以前的方法更适合临床应用,包括以下几点:该方法的“单次激发”特性使其对患者运动相对不敏感;由于所有90度脉冲都是二项式脉冲,水抑制效果良好;并且不需要高场乳酸编辑序列中使用的非常窄带的射频脉冲,而在低场中这种脉冲必然非常长。此外,这种乳酸编辑方案可以非常容易地与局部光谱测量相结合。