1. A method for extracting a three-dimensional (3D) volume of interest from a three-dimensional (3D) image dataset, said method comprising: accessing a 3D image dataset that includes a plurality of image slices; enclosing a 3D volume of interest in the 3D image dataset using a 3D mesh; automatically extracting the 3D volume of interest based on the 3D mesh; and generating a 3D image of the extracted 3D volume of interest.