Rotational tomography of the normal and reconstructed middle ear in temporal bones: an experimental study

摘要: Imaging is an essential diagnostic tool in reconstructive middle ear surgery, especially pre-operative planning. Due to ongoing improvement of imaging quality and development new techniques like e.g. rotational tomography (RT) post-operative follow-up immediate evaluation surgical results may become more important. The aim this experimental study was evaluate RT as a for postoperative determination anatomy implant position temporal bones. performed ten bone specimen after insertion different prostheses concerning material, shape length (PORP; TORP; Stapes piston). An implantable hearing device (Symphonix Soundbridge®) also implanted visualized. For comparison some additionally underwent conventional computed (CT), including the newest technology. Characterization anatomical structures using comparable CT-scans all investigated while requiring approximately 30% CT’s irradiation exposure. Unlike CT showed almost no problems due metallic artefacts prostheses. Furthermore enabled 3-dimensional view angle inserted towards tympanic membrane and/or malleus handle. Detailed allowed shape, material localization within specimen’s reconstructed ear. technique allows precise presentation implants Following these it will be our future work method clinical practise.