The embodiment of the invention provides a
head and neck lymph node and drainage area automatic sketching method based on
deep learning. The method utilizes the symmetry of a
human body structure to divide a head area into a left part and a right part for training and prediction, thereby indirectly increasing the data volume of model training, and reducing the scale of a
deep learning model at thesame time. According to the method, a step-by-step
processing optimized sketching strategy is used, the lymphatic drainage area easy to segment is achieved through the
deep learning model, then the lymphatic drainage area is optimized and
lymph nodes are segmented through the multi-task deep learning model, the relevance between the lymphatic drainage area and the
lymph nodes is fully utilized, and the segmentation accuracy of the lymphatic drainage area and the lymph nodes is improved. According to the invention, an AI (
artificial intelligence)-assisted contour sketching method is implemented in a radiotherapy plan
work flow, so that the sketching consistency of the work efficiency of medical workers can be effectively improved, and the
head and neck tumor radiotherapy precision is improved.