1. A method of detecting microcalcifications in a digital mammogram, comprising: obtaining a digital mammogram; extracting regions of interest from said digital mammogram suspected of containing a microcalcification; converting said regions of interest into corresponding numerical data; inputting said numerical data to a shift-invariant neural network trained to detect microcalcifications for processing of said numerical data by said neural network, said neural network outputting corresponding output images; detecting a microcalcification in said digital mammogram using said output images.