The invention relates to a method for analyzing a non-planar organ in the human or animal body, in particular a strand-shaped organ, the method comprising the steps:a. providing at least one 3D or 4D image dataset which includes the organ；b. selecting a basic plane (20) through the 3D image dataset which at least partially intersects the organ；c. displaying the basic plane (20) and defining the organ on the basic plane (20), resulting in a model (52) of the organ；d. providing a curved profile plane (30) which follows the model (52) and extends perpendicular to the basic plane (20)；e. displaying the curved profile plane (20) and defining the organ on the curved profile plane (30), resulting in an adjusted model (53) of the organ.
