title: Calculation of RF Peak Power for 2D Arbitrary Shape Excitation in MRI.
abstract: An exact formula has been derived to calculate the required RF (B1) peak power for 2D arbitrary shape excitation in MRI with rectilinear K-space trajectory. An approximate formula has also been derived for spiral trajectory.
authors.affiliation: Department of Biomedical Engineering, Yale University, New Haven, CT, 06520, USA.
authors.forename: Qin
authors.initials: Q
authors.lastname: Qin
authors.forename: Robin
authors.initials: R
authors.lastname: de Graaf
authors.forename: Mark
authors.initials: M
authors.lastname: Does
authors.forename: John
authors.initials: J
authors.lastname: Gore