公开(公告)号：US20140330110A1

公开(公告)日：2014-11-06

申请号：US14338385

申请日：2014-07-23

申请人： General Electric Company

发明人： Ralph E. Hurd

IPC分类号： G01R33/56 ,  A61K49/10 ,  A61B5/00

CPC分类号： G01R33/5601 ,  A61B5/055 ,  A61B5/742 ,  A61B5/7475 ,  A61K49/10 ,  G01R33/281 ,  G01R33/4608 ,  G01R33/485 ,  G01R33/5608

摘要： A system and method for improving available signal-to-noise ratio (SNR) and speed of MR imaging of hyperpolarized substances is disclosed. The system and method include decoupling spin effects of hydrogen nuclei from non-hydrogen nuclei of interest during sampling of MR signals therefrom. Though the hydrogen nuclei of the hyperpolarized substance may not be directly bonded to the non-hydrogen nuclei of interest, resonance splitting may still impact SNR. Long range decoupling improves T2* time, and thus preserves signal strength and available SNR.

摘要翻译： 公开了一种用于提高超极化物质的可用信噪比（SNR）和MR成像速度的系统和方法。 该系统和方法包括在从其中的MR信号的采样期间将氢原子的自旋效应从感兴趣的非氢核解耦。 尽管超极化物质的氢核可能不会直接与感兴趣的非氢核结合，但共振分裂仍可能影响SNR。 长距离去耦可提高T2 *时间，从而保持信号强度和可用信噪比。