1. A method for identifying and replacing missing or deteriorated images and/or image portions in a database of signals representative of a time sequenced series of magnetic resonance images of a selected field of view obtained by a single-shot imaging technique, wherein each said image includes a plurality of mutually parallel lines, said method comprising the steps of: sequentially incrementally dividing each image of said field of view into smaller and smaller fractional portions until a preselected minimum portion size is reached; projecting each said portion of each said image along a read direction so as to form an associated summation profile; identifying points along each said associated summation profile having signal amplitudes that are less than a preselected percentage of the signal amplitude of the nearest neighboring points in space and time thereto in said profile; forming a bit map of the image or image portion represented by said identified points; and interpolating replacement images or image portions for said identified images or image portions using said nearest neighbor images or image portions.