It is described a method for spatially characterizing a device positioned within an object, e.g. a patients body, under examination that e.g. allows a clinician to easily assess the deployment state and position of the device. The method comprises the steps of acquiring (26) a set of images of the device, reconstructing (28) a three-dimensional model of the device from the set of images, comparing (30) the model of the device with an ideal model of the device in a predetermined deployment state inside the object and displaying (36) the model of the device on a display unit. For optical indication deviation areas of the deployed device relative to an ideal model of the deployed device can be determined and color-coded depending on the strength of deviation.
