1. A method of segmenting an object of interest in a data set, wherein the data set comprises at least a first image and a second image, the method comprising the steps of: segmenting the object of interest with a processor in the first image for determining a first segmentation result; determining a first structure of the object of interest where the segmentation is unsuccessful in the first image; and segmenting the first structure in a first region of the second image for determining a second segmentation result; wherein the first region is a local vicinity of the first structure.