Xiaoping Wu,Pierre-Francois Van De Moortele,Sebastian Schmitter,Kamil Ugurbil,Edward Auerbach
申请号:
US14762093
公开号:
US20150362574A1
申请日:
2014.01.24
申请国别(地区):
US
年份:
2015
代理人:
摘要:
A method for designing one or more multichannel, multiband radio frequency (“RF”) pulses for use with a magnetic resonance imaging (“MRI”) system is provided. The method includes determining a number of RF amplitude modulations and a number of RF phase modulations for each channel in a multichannel RF coil by minimizing an objective function that includes a complex-valued vector. The objective function also contains a system matrix that accounts for both a spatial sensitivity profile of each channel in the multichannel RF coil and a magnetic field map for each excitation band in the multiband RF pulse.