Knowledge-based matching for 3D radiotherapy planning

摘要

Develops a system that performs segmentation and recognition ofmajor organs in CT images of human abdomen for 3D organ reconstructionused in radiotherapy. A knowledge-based system has been developed thatfeatures the use of constraint-based dynamic thresholding,negative-shape constraints to rapidly rule out infeasible segmentations,and progressive landmarking that takes advantage of the differentdegrees of certainty of unsuccessful identification of each organ. Theresults of the experiments indicate that the knowledge-based approach ispromising