A method of processing magnetic resonance imaging signals from a plurality
of receiver coils of a magnetic resonance imaging system, comprises the
steps of receiving from said plurality of receiver coils a corresponding
plurality of original signals in the time-domain forming an n-dimensional
signal vector .nu..sub.k wherein n is the number of receiver coils;
linearly combining said original signals so as to obtain a plurality of
transformed signals forming an m-dimensional transformed signal vector
.nu.'.sub.k wherein m is smaller than n and wherein said step of linearly
combining is represented by a linear transformation matrix A; and
reconstructing an image from said plurality of transformed signals. Said
transformation matrix A is determined for given sensitivity
characteristics and noise statistics of said plurality of receiver coils
so as to substantially maximize the signal-to-noise ratio in a
preselected image region or volume which is preferably smaller than the
imaging slice or volume selected by the magnetic resonance experiment.