首页>
外国专利>
Method for mapping of the radio frequency field amplitude in a magnetic resonance imaging system using adiabatic excitation pulses
Method for mapping of the radio frequency field amplitude in a magnetic resonance imaging system using adiabatic excitation pulses
展开▼
机译:利用绝热激励脉冲在磁共振成像系统中映射射频场幅的方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
A method for determining the spatial distribution of the magnitude of the radio frequency transmission field B1 in a magnetic resonance imaging apparatus, wherein the method comprises performing an MRI experiment in which a B1-sensitive complex image (SI) of a sample is obtained, wherein the phase distribution within the B1-sensitive complex image (SI) depends on the spatial distribution of the magnitude of the field B1. For establishing the dependency of the phase distribution within the B1-sensitive complex image (SI) on the spatial distribution of the field B1, one or more adiabatic RF pulses are applied. The method provides a simple procedure for mapping the B1 field of a magnetic resonance imaging apparatus with an improved accuracy and a wider measurement range.
展开▼