[Computerized tomography in ORL-diseases. II. High resolution-CT of the paranasal sinuses].

Computerized tomography of the paranasal sinuses so far was restricted to imaging soft tissue structures. By means of new high resolution algorithms spatial resolution has been improved significantly without any increase in patient dose. Thereby a clear delineation of fine structures and of the transitions from bone to mucosa and air has been achieved. The scope of applications is thus extended to the diagnosis of purely osseous processes like fractures and osteoplastic changes for example. Computerized tomography, therefore, is the method of choice for most diseases of the paranasal sinuses.