A detection framework that matches anatomical structures using appearance
and shape is disclosed. A training set of images are used in which object
shapes or structures are annotated in the images. A second training set
of images represents negative examples for such shapes and structures,
i.e., images containing no such objects or structures. A classification
algorithm trained on the training sets is used to detect a structure at
its location. The structure is matched to a counterpart in the training
set that can provide details about the structure's shape and appearance.