1. A method for detecting lesions in ultrasound images, said method comprising: acquiring an ultrasound image; generating a Fisher-tippett (FT) distribution-based edge feature map from the acquired ultrasound image; generating gradient concentration (GC) scores for pixels of the acquired ultrasound image using the FT distribution-based edge feature map; identifying a candidate lesion region within the acquired ultrasound image based on the GC scores; and displaying at least the identified candidate lesion region.