1. A method for segmenting a feature of interest from a volume image, the method executed at least in part on a computer, comprising: acquiring image data elements from the volume image of a subject; displaying at least one view of the volume image; manually forming a foreground identifying pattern within the feature of interest according to one or more geometric primitives defined by a user with reference to the displayed at least one view; forming a foreground seed curve defined according to the foreground identifying pattern; forming a background seed curve encompassing and spaced apart from the foreground seed curve; applying segmentation to the volume image according to foreground values obtained according to image data elements that are spatially bounded on or within the foreground seed curve and according to background values that lie on or outside the background seed curve; and displaying, storing, or transmitting an image of the feature of interest that was segmented.