1. A method for providing an improved visual representation of radiotherapy isodoses applied to an anatomical feature, the method comprising: (a) displaying, on a display screen a visual representation of an anatomical feature to undergo radiotherapy; (b) generating a visual representation of an isodose pattern in the form of a plurality of contour lines, which extend beyond the visual representation of the anatomical feature, indicative of a radiotherapy dose; (c) superimposing, on the display screen, the contour lines of the isodose pattern over the visual representation of the anatomical feature; and (d) masking the contour lines that extend beyond the visual representation of the anatomical feature to remove the contour lines from the visual display prior to undergoing a therapy session.