PURPOSE: A simple and robust index for ranking rival stereotactic radiosurgery plans is presented. METHODS: The radiosurgery plan score index, CGI (Conformity/Gradient Index), is an average of a conformity score and a gradient score. Computation of the CGI score is simple, requiring only three pieces of data: (1) the total volume irradiated to the prescription isodose level, (2) the volume of the target, and (3) the total volume irradiated at half of the prescription isodose level. The overall CGI Index is a simple function of these three pieces of data. RESULTS: When multiple sets of rival stereotactic radiosurgery plans were ranked with respect to this single score index, the resulting plan rankings closely matched the plan rankings according to biologic indices (calculated nontarget brain normal tissue complication probabilities). CONCLUSIONS: The CGI is a simple and fast plan evaluation tool that can assist the radiosurgery planner in evaluating and optimizing multiple candidate radiosurgery plans.
PURPOSE: A simple and robust index for ranking rival stereotactic radiosurgery plans is presented. METHODS: The radiosurgery plan score index, CGI (Conformity/Gradient Index), is an average of a conformity score and a gradient score. Computation of the CGI score is simple, requiring only three pieces of data: (1) the total volume irradiated to the prescription isodose level, (2) the volume of the target, and (3) the total volume irradiated at half of the prescription isodose level. The overall CGI Index is a simple function of these three pieces of data. RESULTS: When multiple sets of rival stereotactic radiosurgery plans were ranked with respect to this single score index, the resulting plan rankings closely matched the plan rankings according to biologic indices (calculated nontarget brain normal tissue complication probabilities). CONCLUSIONS: The CGI is a simple and fast plan evaluation tool that can assist the radiosurgery planner in evaluating and optimizing multiple candidate radiosurgery plans.
Authors: J A Tanyi; E J Doss; C M Kato; D L Monaco; L ZMeng; Y Chen; C D Kubicky; C M Marquez; M Fuss Journal: Br J Radiol Date: 2012-11 Impact factor: 3.039
Authors: Christos Moustakis; Oliver Blanck; Fatemeh Ebrahimi Tazehmahalleh; Mark Ka Heng Chan; Iris Ernst; Thomas Krieger; Marciana-Nona Duma; Markus Oechsner; Ute Ganswindt; Christian Heinz; Horst Alheit; Hilbert Blank; Ursula Nestle; Rolf Wiehle; Christine Kornhuber; Christian Ostheimer; Cordula Petersen; Gerhard Pollul; Wolfgang Baus; Georg Altenstein; Eric Beckers; Katrin Jurianz; Florian Sterzing; Matthias Kretschmer; Heinrich Seegenschmiedt; Torsten Maass; Stefan Droege; Ulrich Wolf; Juergen Schoeffler; Uwe Haverkamp; Hans Theodor Eich; Matthias Guckenberger Journal: Strahlenther Onkol Date: 2017-05-31 Impact factor: 3.621