Meeting Banner
Abstract #3088

Dynamic Frequency Drift Correction for Binomial Water Excitation

Dehe Weng1,2, Feng Xiu3, Xiaodong Zhou1,4, Qiang He1,4

1Siemens Mindit Magnetic Resonance Ltd, Shenzhen, Guangdong, China; 2Beijing MRI Center for Brain Research, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China; 3Shenzhen Graduate School, Harbin Institute of Technology, Shenzhen, Guangdong, China; 4Life Science and Technology School, Tongji University, Shanghai, China

Binomial water excitation is useful in low field MR system (<0.5T) for fat suppression, but it is vulnerable to main magnetic field instability. Dynamic magnetic field measurement is introduced in this method. The initial phase of the RF pulses except the first RF pulse in the binomial RF train is modified afterward in order to improve the performance of fat suppression. Result shows that lipid signal was suppressed well while water signal is enhanced in volunteer images.