1. A method for computer assisted lesion detection in magnetic resonance (MR) images, comprising: acquiring a set of dynamic contrast enhanced (DCE) MR images including a pre-contrast MR image and a sequence of post-contrast MR images acquired at predetermined intervals of time; dividing the sequence of post-contrast MR images into a first sub-set representing earlier-acquired MR images and a second sub-set representing later-acquired MR images; adding positive-signed enhancement values of voxels of the MR images from the first sub-set to a combined subtraction image; adding absolute values of all enhancement values of voxels of the MR images from the second sub-set to the combined subtraction image; and automatically detecting one or more regions of suspicion from the combined subtraction image.