A method for transesophageal echocardiography simulation, comprising the steps of: - providing a simulator interface for the transesophageal echocardiography simulation; - obtaining a scan of a patients tissue; - providing a virtual, computer implemented user interface for navigating a virtual probe within the graphical data set of the scan; further comprising the steps of - executing the step of obtaining a scan of a patients tissue by using computer tomography; - processing a graphical data set of the scan into a modified graphical data set of the scan, being a three-dimensional data structure, by processing pixels colour values in order to mimic the appearance of tissues typically obtained by transesophageal echocardiography; - obtaining a further modified graphical data set of the scan wherein each image of the modified graphical data set is provided with information defining placement of the patient's oesophagus; - storing on a computer readable medium a data set defining the further modified graphical data set of the scan; - wherein the user interface for navigating a virtual probe is adapted to operate on the three-dimensional further modified graphical data set of the scan; and - wherein an educational color layer is added to each image of the data set, such that the educational color layer visually distinguishes selected tissue structures in order to facilitate the process of learning transesophageal echocardiography whereas any abnormalities in tissue are highlighted with different colors and a data record for the educational color layer is created for each image of the data set whereby in this data record each pixel is defined with a number of bits depending on the number of colors used in the layer and a corresponding color look-up table is created, the table mapping palette index to a color value. - providing a simulator interface for the transesophageal echocardiography simulation; - obtaining a scan of a patients tissue; - providing a virtual, computer implemented user interface for navigating a virtual probe within the graphical data set of the scan; further comprising the steps of - executing the step of obtaining a scan of a patients tissue by using computer tomography; - processing a graphical data set of the scan into a modified graphical data set of the scan, being a three-dimensional data structure, by processing pixels colour values in order to mimic the appearance of tissues typically obtained by transesophageal echocardiography; - obtaining a further modified graphical data set of the scan wherein each image of the modified graphical data set is provided with information defining placement of the patient's oesophagus; - storing on a computer readable medium a data set defining the further modified graphical data set of the scan; - wherein the user interface for navigating a virtual probe is adapted to operate on the three-dimensional further modified graphical data set of the scan; and - wherein an educational color layer is added to each image of the data set, such that the educational color layer visually distinguishes selected tissue structures in order to facilitate the process of learning transesophageal echocardiography whereas any abnormalities in tissue are highlighted with different colors and a data record for the educational color layer is created for each image of the data set whereby in this data record each pixel is defined with a number of bits depending on the number of colors used in the layer and a corresponding color look-up table is created, the table mapping palette index to a color value.