Learn More
INTRODUCTION Adequate imaging of the middle ear and its surrounding structures is an essential preoperative part in ear surgery. In the past, the main disadvantage of computed tomography (CT) scanners was the decreased diagnostic quality due to metallic artifacts. Furthermore, these scanners showed mostly an inferior image quality compared to digital volume(More)
Digital volume tomography (DVT) is a kind of cone beam computed tomography and enables high quality 3D images of osseous structures. It is a well-established diagnostic tool in dentistry. High detail resolution is reached with a reduced exposition of radiation dose in comparison to conventional computed tomography. The data volume can be analysed in three(More)
OBJECTIVES Radiological evaluation of the position of cochlear implant (CI) devices is an upcoming method for quality control after CI surgery. First, results of imaging of the middle and inner ear with digital volume tomography (DVT) show considerable advantages such as exceptional image quality, thin slice thickness, and low radiation dose. The aim of(More)
CONCLUSION A cone beam tomography (CBT) examination of the olfactory area with its different variants allows development of an individual anatomical-radiological risk profile of the ethmoid and the identification of so-called 'dangerous ethmoids.' OBJECTIVE Preoperative imaging performed with high-resolution CBT is imperative for analysis of the risk of(More)
CONCLUSION Preoperative imaging is important, because of the small size of the cribriform plate, different anatomical variants of the olfactory fossa in varied patients and unequal width of the cribriform plate in the anterior and posterior third. OBJECTIVE Digital volume tomography (DVT) is a rather new imaging technique for the diagnosis of diseases of(More)
CONCLUSION Because of high resolution and the relatively lower costs in comparison with modern helical CT scanners, digital volume tomography (DVT) can be recommended in the diagnosis of the nasal cavity and paranasal sinuses. OBJECTIVES DVT is an advancement of panoramic tomography and is based on the principles of rotational tomography. It enables high(More)
CONCLUSION Salivary stones in the parotid gland that are not amenable to endoscopic extraction can safely be removed by a combined, endoscopic-external approach. OBJECTIVE Limitations for endoscopic removability of salivary stones from the parotid gland are immobile stones in the deeper salivary duct system. A combined endoscopic and transcutaneous(More)
BACKGROUND The Staffieri technique is a method for surgical rehabilitation of the voice after laryngectomy. A fistula between trachea and esophagus is created to achieve a so-called "Neoglottis phonatoria". The assignment of the neoglottis is to protect the airways during ingestion and to give the patient a chance to phonate during expiration. PATIENT The(More)
CONCLUSION In detecting a thin bony coverage of a superior semicircular canal (SSC), digital volume tomography (DVT) scans in Poeschl projection seem to be superior to high-resolution computed tomography (CT) scans. Still, a definite diagnosis of SSC dehiscence (SSCD) is not possible with any radiologic imaging technique. OBJECTIVE To compare CT and DVT(More)