Qualitative segmentation results on five, 2D axial slices for three sample prostates. Each row shows the results for one patient. For each case, the left image is the inferior-most (apex) slices, and the right image is the superior-most (base) slice. The algorithm segmentation is shown with solid yellow contours; reference #1 is shown with dotted, blue contours; and the reference #2 is shown with dashed, green contours.