A method for visualization of treatment volumes includes accessing a plurality of images of a region of interest in a subject that are parallel to a plane. The method also includes delineating a cross section of a first treatment volume and a cross section of a second treatment volume in each of the plurality of images. The method includes reconstructing a three dimensional representation of the first and second treatment volumes from the plurality of images based on the delineated cross sections in the plurality of images. The method includes displaying, in a three dimensional image, a portion of the first treatment volume that is located on a first side of a plane and displaying, in the three dimensional image, at least a part of a portion of the second treatment volume that is located on a second side of the plane. The second side is opposite the first side.
