A system for modeling a necrotized tissue volume in an ablation procedure includes a radiology workstation designed and configured to provide a computer model of a volume of human tissue based on corporeal image data, simulate an ablation site in the computer model, detect, in the computer model, at least a preferential pathway for heated vapor produced due to ablation of the tissue, wherein the at least a preferential pathway intersects the ablation site, determine a proportion of vapor escaping to the at least a preferential pathway during an ablation procedure, determiner a heat distribution at the ablation site as a function of the distribution of vapor, and generate a simulation of a necrotized tissue volume in the volume of tissue, wherein the simulation of the necrotized tissue volume represents a volume of tissue necrotized by heat during an ablation procedure performed at the ablation site.