METHODS AND COMPUTER READABLE MEDIUM FOR IMPROVED RADIOTHERAPY DOSIMETRY PLANNING

摘要

Methods and computer readable media are disclosed for ultimately developing a dosimetry plan for a treatment volume irradiated during radiation therapy with a radiation source concentrated internally within a patient or incident from an external beam. The dosimetry plan is available in near real-time because of the novel geometric model construction of the treatment volume, which in turn allows for rapid calculations to be performed for stimulated movements of particle along particle tracks there through. The particles are exemplary representations of alpha, beta or gamma emissions emanating from an internal radiation source during various radiotherapies, such as Brach therapy or targeted radio nuclide therapy, or they are exemplary representations of high-energy photons, electrons, protons or other ionizing particles incident on the treatment volume from an external source. A movement of a particle along a particle track is defined through the geometric model along a primary direction of movement that begins from the radiation source in a starting element of the uniform volume elements and transverses to a next element of the uniform volume elements.