1. A method for the analysis of image data representing a three-dimensional volume of biological tissue, the method comprising the steps of: a) for each of a number of subvolumes generating at least two error probability values, each of the values indicating a probability of a type of imaging error, the totality of subvolumes constituting the three-dimensional volume; b) determining a single consolidated error probability value for each of the number of subvolumes, based on the at least two error probability values; c) analyzing the image data to obtain a physiologically relevant conclusion applying to a plurality of subvolumes, weighting in the analysis the image data of a given subvolume of the plurality of subvolumes according to the consolidated error probability of the subvolume.