Patent ID: 7230429
Filing Date: 2007-06-12
Classification: G01R

Abstract:
1. A method for producing sensitivity maps, comprising: receiving an original plurality of sensitivity maps u minimizing an energy functional, where the energy functional E[u wherein u is where is the fidelity term, is the smoothing term, and is the sum of squares of the sensitivity maps; where u where γ and μ balance the terms in the energy functional, wherein increasing γ results in a smoother image, wherein maximizing μ brings the term closer to unity, applying where the Euler-Lagrange equation for the energy functional, where the Euler-Lagrange equation for the energy functional is with boundary condition ∂u where where j corresponds to the j th coil, k,l correspond to rows and columns of the image u respectively, and n corresponds to the n th iteration; providing an initial guess for u and iterating the iteration formula to minimize the energy functional.