The present application relates to the
medical physics technical field, disclose a kind of
radiotherapy dose prediction method, device, equipment and medium.The method comprises: obtaining the medical image of the radiotherapy region of patient, including the multiple two-dimensional slice images of radiotherapy region, planned target volume and
organ at risk in radiotherapy region are
region of interest;Each two-dimensional slice image and its adjacent two-dimensional slice image are input into conditional
diffusion generation network, with the anatomical information of
its region of interest as control condition, guide the process of gradually denoising of the
noise map generated by
diffusion model to the random
dose distribution map of radiotherapy region, generate
initial dose distribution map;Two-dimensional slice image is input into
dose calibration network, and the
dose of
its region of interest is predicted, to calibrate the dose of
region of interest in
initial dose distribution map, generate
target dose distribution map;The three-dimensional
dose distribution of patient radiotherapy is determined in combination with the
target dose distribution map of all two-dimensional slice images.