| 发明名称 |
OPTIMIZED VELOCITY-SELECTIVE ARTERIAL SPIN LABELLING MODULE |
| 摘要 |
A velocity selective preparation method is disclosed, for velocity selective arterial spin labelling (VSASL), the VSASL method using non-selective radiofrequency pulses and magnetic field gradients to modulate the longitudinal magnetization of the spins as a function of their velocity, wherein said velocity selective preparation method comprises an n-segment B1 insensitive rotation that is resistant to eddy current artifacts. |
| 申请公布号 |
US2014235994(A1) |
申请公布日期 |
2014.08.21 |
| 申请号 |
US201314020335 |
申请日期 |
2013.09.06 |
| 申请人 |
ISIS INNOVATION LTD. |
发明人 |
Jezzard Peter;Meakin James |
| 分类号 |
A61B5/055;G01R33/563 |
主分类号 |
A61B5/055 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A velocity selective preparation method, for velocity selective arterial spin labelling (VSASL), said VSASL method using non-selective radiofrequency pulses and magnetic field gradients to modulate the longitudinal magnetization of the spins as a function of their velocity, wherein said velocity selective preparation method comprises an n-segment B1 insensitive rotation that is resistant to eddy current artifacts by careful arrangement of gradient pulse positions at the zero crossings of the RF pulse waveforms. |
| 地址 |
Oxford GB |
