Fig. 7.

Automatic coarse localization of the prostate. The dashed line shows the estimated rectal wall line. The dashed curve shows the estimated bladder boundary. The solid line polygon is the prostate shape template used to select the center points for base, apex, and mid-gland. The manually delineated prostate border has been overlaid in dotted line as a reference. AP and IS are, respectively, anterioposterior and inferior–superior dimensions of the prostate. The three indicated points on the shape template define the estimated center points for base, apex, and mid-gland.