B. , N.H., N. , T.K., T. , T.D., T. , N.T., P., C., P., V.T. and V., .T.T. 2026. Development of Brain MRI Image Segmentation program using UNET++ network for radiosurgery planning. Nuclear Science and Technology. 13, 1 (May 2026), 01-09. DOI:https://doi.org/10.53747/nst.v13i1.398.