Calculation of RF Peak Power for 2D Arbitrary Shape Excitation in MRI

Qin Qin; Robin de Graaf; Mark Does; John Gore

doi:10.1109/IEMBS.2005.1616675

Calculation of RF Peak Power for 2D Arbitrary Shape Excitation in MRI

Conf Proc IEEE Eng Med Biol Soc. 2005:2005:1340-3. doi: 10.1109/IEMBS.2005.1616675.

Authors

Qin Qin¹, Robin de Graaf, Mark Does, John Gore

Affiliation

¹ Department of Biomedical Engineering, Yale University, New Haven, CT, 06520, USA.

PMID: 17282444
DOI: 10.1109/IEMBS.2005.1616675

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.