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Method for tracking soft tissue masses in images using directed graphs

Image Number 9 for United States Patent #8121669.

Region of interest (ROI) corresponding to a soft tissue mass are tracked in a training video acquired by sonography. The locations of the ROI are used to construct a directed graph in which each node represents a location of the tracked ROI, and the edges represent temporal relations of the ROIs. The soft tissue mass can also be tracked using the graph, and appropriate treatment can be delivered.

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