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CN103354908A 利用极化转移在高静（B0）磁场下的宽带宽磁共振波谱分析 有权

利用极化转移在高静（B0）磁场下的宽带宽磁共振波谱分析
摘要：
生成5特斯拉或更高的静（B0）磁场的磁共振（MR）控制器被配置成控制MR扫描器以执行MR序列（14），包括：对设置于由所述MR扫描器生成的静（B0）磁场中的受检者执行激励/定位子序列（30）以激励定位在所述受检者的选定空间区域中的1H极化；执行极化转移子序列（32）以将由激励/定位子序列生成的定位1H极化转移到非质子核的选定核素；以及执行磁共振波谱分析（MRS）读出子序列（40），以针对所述受检者的选定空间区域中的非质子核的选定核素采集MRS数据。所述极化转移子序列包括对非质子核的选定核素进行操作的一对相位畸变消除梯形180°重聚焦脉冲（36、37）。
摘要（英）：

A magnetic resonance (MR) generating a static (BO) magnetic field of 5 Tesla or higher controller is configured to control an MR scanner to perform an MR sequence (14) including: performing an excitation/localization sub-sequence (30) on a subject disposed in the static (BO) magnetic field generated by the MR scanner to excite 1H polarization in a selected spatial region of the subject; performing a polarization transfer sub-sequence (32) to transfer localized 1H polarization generated by the excitation/localization sub- sequence to a selected species of non-proton nuclei; and performing a magnetic resonance spectroscopy (MRS) readout sub- sequence (40) to acquire MRS data for the selected species of non-proton nuclei in the selected spatial region of the subject. The polarization transfer sub-sequence includes a pair of phase 10 distortion canceling trapezoidal 180 DEG refocusing pulses (36, 37) operating on the selected species of non-proton nuclei.

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