Patent ID: 7053613
Filing Date: 2006-05-30
Classification: G01R

Abstract:
1. A method for generating a reconstructed magnetic resonance image of an object, said method comprising: acquiring full FOV images from multiple RF receivers to calculate noise covariances among multiple RF receivers and to calculate coil sensitivities for multiple RF receivers; acquiring sub-FOV images from multiple RF receivers; unfolding images for individual RF receivers given the noise covariances among RF receivers and the coil sensitivity of individual RF receivers; and combining unfolded images from individual RF receivers to generate FOV reconstructed magnetic resonance images; characterized in that said method further comprises: calculating full FOV reference images as prior information of the reconstruction image; estimating a given regularization parameter to constrain a solution image within a predetermined extent from the prior information; and obtaining the reconstructed magnetic resonance image using Tikhonov regularization with an optimal regularization parameter based on a compromise between the reconstruction using no conditioning and the reconstruction using complete conditioning by the replication of the prior information.