A decision rule is used that examines the computer-aided detected (CAD) regions of interest in a computed tomography (CT) slice pair taken from volumetric medical CT scan to determine whether the detected regions of interest are part of the same object is disclosed. Segmentation is performed after initially detecting a region of interest but before calculating features in order to refine the boundaries of the detected regions of interest. Segmentation occurs in the two-dimensional slices by segmenting the region of interest on each slice. Adjacent slices are examined to determine if adjacent objects are actually part of the same structure. If they are not, the objects are split apart. In this way, three-dimensional objects are formed from two-dimensional segmentations.

 
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