A system for visualizing a volumetric image of an anatomical structure, the system comprising: - an image interface for accessing image data of the volumetric image; - a display processor configured for: i) generating a first view of the volumetric image, the first view being geometrically defined by a first viewing plane intersecting the volumetric image, the first view showing a cross-section of a surface of the anatomical structure, ii) determining at least one location on the surface based on a position of an onscreen pointer over the first view; iii) determining a local orientation of the surface within the volumetric image by analyzing the image data of the volumetric image, the local orientation being determined for the at least one location on the surface shown in the first view, and iv) based on the local orientation being determined for the at least one location on the surface, generating a second view of the volumetric image, the second view being geometrically defined by a second viewing plane intersecting the surface of the anatomical structure in the volumetric image substantially orthogonally at the at least one location on said surface; and - a display output for generating and outputting display data , the display data representing an output of the display processor. - an image interface for accessing image data of the volumetric image; - a display processor configured for: i) generating a first view of the volumetric image, the first view being geometrically defined by a first viewing plane intersecting the volumetric image, the first view showing a cross-section of a surface of the anatomical structure, ii) determining at least one location on the surface based on a position of an onscreen pointer over the first view; iii) determining a local orientation of the surface within the volumetric image by analyzing the image data of the volumetric image, the local orientation being determined for the at least one location on the surface shown in the first view, and iv) based on the local orientation being determined for the at least one location on the surface, generating a second view of the volumetric image, the second view being geometrically defined by a second viewing plane intersecting the surface of the anatomical structure in the volumetric image substantially orthogonally at the at least one location on said surface; and i) generating a first view of the volumetric image, the first view being geometrically defined by a first viewing plane intersecting the volumetric image, the first view showing a cross-section of a surface of the anatomical structure, ii) determining at least one location on the surface based on a position of an onscreen pointer over the first view; iii) determining a local orientation of the surface within the volumetric image by analyzing the image data of the volumetric image, the local orientation being determined for the at least one location on the surface shown in the first view, and iv) based on the local orientation being determined for the at least one location on the surface, generating a second view of the volumetric image, the second view being geometrically defined by a second viewing plane intersecting the surface of the anatomical structure in the volumetric image substantially orthogonally at the at least one location on said surface; and - a display output for generating and outputting display data , the display data representing an output of the display processor. <EOS>