Over the past decades immense changes have occurred in medicine in general, and in the field of radiology more specifically. In radiology departments, some became more specialised in head and neck imaging in order to give better answers to referring ENT specialists. This collaboration between the referring physician and the radiologist created an even more focused interest on the temporal bone. In the 1980s, the fundamentals of temporal bone CT were established, and in the 1990s a comparable evolution was noted in the field of temporal bone MRI. Untill today, both imaging techniques have continuously evolved in the creation of temporal bone images. In the last years cone-beam CT has been added to the CT instru-mentarium, and a growing importance was seen in the use of MRI in patients with choles-teatoma, by the application of non-EPI diffusion-weighted images. Both topics get an important place in this book. The purpose of the book is to provide a diverse view on temporal bone imaging issues, and is built around chapters focusing on a topographical basis on one hand, and on a pathological basis on the other hand. It was conceived that way to make the book easy to read and use. Without pretending to be complete it covers the broad spectrum of temporal bone imaging questions that the radiologist should be able to answer. Also some more exotic pathologies are illustrated, but this book does not have the ambition to bring a huge collection of castuistic examples.
Many authors coming from all over the world have collaborated on the book. We would like to thank them all for their enthusiasm for and contribution to this project despite their busy agendas. We are especially surprised by the excellent quality of the images that are presented throughout the different chapters. Radiological images are for the radiologist what paintings are for the painter. We hope that this book will be a museum worth repetitive visits. Last but not least, we like to acknowledge Nancy Verpoort who did a tremendous job in correcting illustrations and texts. Marc Lemmerling Bert De Foer

Indications for Temporal Bone Imaging: The Clinician's Approach 1

Temporal Bone Imaging Techniques 7

Cross-Sectional Imaging Anatomy of the Temporal Bone 11

External Ear Imaging 35

Acute Otomastoiditis and its Complications 53

Chronic Otomastoiditis without Cholesteatoma 61

Imaging of Cholesteatoma 69

Otosclerosis 89

Temporal Bone Trauma 97

Temporal Bone Tumours 107

Congenital Malformations of the Temporal Bone 119

Imaging of Cerebellopontine Angle and Internal Auditory Canal Lesions 155

Inner Ear Pathology 219

Imaging of Cochlear Implants 237

Petrous Apex Lesions 249

Pathology of the Facial Nerve 257

imaging of the Jugular Foramen 307

Vascular Temporal Bone Lesions 329

Post-operative Temporal Bone Imaging 343

MultiPlanar Reformation in CT of the Temporal Bone 367

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