[Synopsis of a standardized, schematic analysis of the ossicles and tympanic walls, visualized with high-resolution computed tomography (using help lines and pictograms)].

Abstract

As in other radiological examinations there is an essay to show the ossicles and their surrounding tympanic walls of the petrous bone in the high resolution computed tomography. This should be standardized to simplify the interpretation and to allow the comparison. For the axial imaging of the ossicles corresponding to their particular topographic situation the head is tilted to the non-examined side and a little bit dorsally flected to turn especially the stapes in the scanning plane and to image the malleus and incus axially. The standard slices of the tympanon were schematized with the help of pictogramms. This allows a faster orientation and an easier recognition of a changed topographical situation meaning a pathological condition. The coronary view is as the important second part of the HR CT of the petrous bone integrated.