公开(公告)号：US20120293175A1

公开(公告)日：2012-11-22

申请号：US13469370

申请日：2012-05-11

申请人： Jarek Wosik ,  Krzysztof Nesteruk ,  Lei Ming P. Xie( Patrick Leiming)

发明人： Jarek Wosik ,  Krzysztof Nesteruk ,  Lei Ming P. Xie( Patrick Leiming)

IPC分类号： G01R33/34

CPC分类号： G01R33/34015 ,  G01R33/34007 ,  G01R33/3403 ,  G01R33/341

摘要： New method of cooling of MRI coil and resonators is disclosed and described. MRI coil designs showed in the disclosure are based solely on the use of copper tube elements filled with liquid nitrogen. Inside the conducting tubes at rf frequency there is no rf electric field, thus the liquid nitrogen presence inside such coils will not have any influence on MRI coil dielectric losses and on the resonant frequency modulation. Liquid nitrogen cooled coils, when in the coil noise regime, demonstrate 2-3 gain of signal-to-noise ratio comparing with room temperature equivalent coils. Methods for making and using both superconducting and normal metal MRI coils and/or arrays in such configurations are also disclosed.

摘要翻译： 公开并描述了MRI线圈和谐振器的新的冷却方法。 在本公开中显示的MRI线圈设计仅基于使用充满液氮的铜管元件。 在导频管的频率范围内没有射频电场，因此这种线圈内的液氮不会对MRI线圈介质损耗和谐振频率调制产生任何影响。 液体氮冷却线圈，当处于线圈噪声状态时，与室温等效线圈相比，显示出2-3的信噪比增益。 还公开了制造和使用这种配置中的超导和正常金属MRI线圈和/或阵列的方法。

公开(公告)号：US09594131B2

公开(公告)日：2017-03-14

申请号：US13469370

申请日：2012-05-11

申请人： Jarek Wosik ,  Krzysztof Nesteruk ,  Lei Ming (Patrick) P. Xie (Leiming)

发明人： Jarek Wosik ,  Krzysztof Nesteruk ,  Lei Ming (Patrick) P. Xie (Leiming)

IPC分类号： G01V3/00 ,  G01R33/34 ,  G01R33/341

CPC分类号： G01R33/34015 ,  G01R33/34007 ,  G01R33/3403 ,  G01R33/341

摘要： New method of cooling of MRI coil and resonators is disclosed and described. MRI coil designs showed in the disclosure are based solely on the use of copper tube elements filled with liquid nitrogen. Inside the conducting tubes at rf frequency there is no rf electric field, thus the liquid nitrogen presence inside such coils will not have any influence on MRI coil dielectric losses and on the resonant frequency modulation. Liquid nitrogen cooled coils, when in the coil noise regime, demonstrate 2-3 gain of signal-to-noise ratio comparing with room temperature equivalent coils. Methods for making and using both superconducting and normal metal MRI coils and/or arrays in such configurations are also disclosed.

摘要翻译： 公开并描述了MRI线圈和谐振器的新的冷却方法。 在本公开中显示的MRI线圈设计仅基于使用充满液氮的铜管元件。 在导频管的频率范围内没有射频电场，因此这种线圈内的液氮不会对MRI线圈介质损耗和谐振频率调制产生任何影响。 液体氮冷却线圈，当处于线圈噪声状态时，与室温等效线圈相比，显示出2-3的信噪比增益。 还公开了制造和使用这种配置中的超导和正常金属MRI线圈和/或阵列的方法。