SYSTEM AND METHOD FOR AUTO-CONTOURING IN ADAPTIVE RADIOTHERAPY Russian patent published in 2019 - IPC A61B6/00 G06T7/12 

FIELD: medicine.

SUBSTANCE: invention relates to medical imaging and treatment. System for implementing a method comprising: processor; memory operatively connected to the processor and storing instructions which, when executed by the processor, cause the processor to perform a method comprising: receiving an image comprising a region of interest; determining primary contour of the region of interest using a boundary detector; refining the first contour based on a shape dictionary to generate a second contour of the region of interest; and updating at least one of the boundary detector or the shape dictionary based on the second contour. Invention can also be used to train a boundary detector based on a plurality of medical images containing a region of interest. Method comprises: selecting, by means of a processor, image points located on the boundaries of the region of interest from said plurality of medical images; extracting, using the processor, rotation-invariant features from the selected image points; determining, by the processor, a vector of features based on the extracted rotation-invariant features; and generating, using the processor, a boundary detector based on the feature vector.

EFFECT: invention can be used to automatically generate contours on a medical image.

20 cl, 6 dwg