1. A method for computer-aided detection (CAD) of anatomical abnormalities in x-ray mammograms based on a foundational CAD processing algorithm, said foundational CAD processing algorithm being characterized by at least one of non-shift-invariance, non-rotational-invariance, and non-inversional-invariance, the method comprising: receiving a first x-ray mammogram image of a breast in digital form; processing by digital computer said first x-ray mammogram image to generate at least one altered version thereof that differs therefrom by at least one of image shift, image rotation, and image inversion, wherein at least one of said altered versions comprises a spatially inverted version of said first x-ray mammogram image; individually processing said first x-ray mammogram image and each of said at least one altered versions using said foundational CAD algorithm to generate a respective plurality of individual CAD detection sets; and comparing said plurality of CAD detection sets to generate an overall CAD detection set for said first x-ray mammogram image.