1. A method for producing an image of a subject with a magnetic resonance imaging (MRI) system, the steps comprising: a) performing a pulse sequence with the MRI system to produce transverse magnetization in the subject that emits NMR signals; b) acquiring the NMR signals simultaneously with multiple coils and associated receive channels; c) producing a prepared data set from the received NMR signals; d) reconstructing an image from the prepared data set by applying a spatial filter; and wherein the spatial filter suppresses signal leakage from substantially all voxels in the image other than a voxel being reconstructed.