Patent Document ID: 9036884
Application ID: 13393232
Patent Status: 1

Claim One:
1. A magnetic resonance method comprising act of: shimming a multi channel transmit coil or coil system to determine optimized operating parameters for radio frequency transmit channels of the multi channel transmit coil or coil system; acquiring a coil sensitivity map for a magnetic resonance receive element using the multi channel transmit coil or coil system; acquiring magnetic resonance imaging data using the magnetic resonance receive element and the multi channel transmit coil or coil system operated with the optimized operating parameters determined by the shimming act; and reconstructing a magnetic resonance image from the acquired magnetic resonance imaging data, the reconstructing act including an act of performing a constant level correction using the coil sensitivity map acquired using the multi channel transmit coil or coil system operating with the optimized operating parameters determined by the shimming act, wherein the shimming act comprises acts of: acquiring a B 1 map for each radio frequency transmit channel of the multi channel transmit coil or coil system; and selecting the optimized operating parameters including an optimized amplitude parameter and an optimized relative phase parameter for each radio frequency transmit channel such that the acquired B 1 maps adjusted by the optimized amplitude and optimized relative phase parameters satisfies a uniformity criterion, and wherein the uniformity criterion includes a computed coefficient of variance being at or below an acceptable maximum variance threshold.