Wayne R. Dannels1, Andrew J. Wheaton1
1Toshiba Medical Research Institute,
Measuring
B1 transmit fields in vivo has importance in areas such as high field
imaging, parallel transmission design, and quantitative imaging. A new method
of acquisition and data analysis is presented for generating 2D B1 maps in
vivo in as little as one TR. In this method saturation tag lines are applied
before rapid imaging, tag lines are separated from the underlying image with
k-space processing, and RF angles are computed from the tagging efficiency
ratio.