STAINSBY, JEFF ALAN,CURTIS, ANDREW THOMAS,HARRIS, CHAD TYLER,PANTHER, ALEXANDER GYLES
申请号：
CA3005220
公开号：
CA3005220A1
申请日:
2018.05.17
申请国别(地区):
CA
年份:
2018
代理人:
摘要：
Methods for correcting a non-uniform power response of a radiofrequency ("RF")transmit coil used in magnetic resonance imaging ("MRI") are described.Transmit powerresponse data for an RF transmit coil are processed to compute RF amplitudescaling factorsfor the RF transmit coil as a function of transmit frequency offset. The RFamplitude scalingfactors can be used to correct transmitted RF power, and thus flip angle, tobe more uniformover a range of transmit frequency offsets, as may be encountered when imagingwith lowerfield MRI systems or MRI systems with high strength or asymmetric gradients.
