Microtomography of the human middle and inner ear

Publikation: Beitrag in FachzeitschriftForschungsartikelBeigetragenBegutachtung

Beitragende

  • Uwe Vogel - , Fraunhofer-Institut für Mikroelektronische Schaltungen und Systeme (Autor:in)
  • Felix Beckmann - , Deutsches Elektronen-Synchrotron (DESY) (Autor:in)
  • Thomas Zahnert - , Klinik und Poliklinik für Hals-Nasen-Ohrenheilkunde (Autor:in)
  • Ulrich Bonse - , Technische Universität (TU) Dortmund (Autor:in)

Abstract

Synchrotron radiation and X-ray microtomography based on absorption contrast (performed at HASYLAB at DESY/Hamburg and BAM/Berlin) have been used for imaging of temporal bones and various internal components in situ at spatial resolution down to 7μm with potential enhancement into the submicron range. Due to the volume imaging approach several hidden structures (e.g., intra-ossicular channels) were revealed. Using several 3D-image processing techniques all data have been segmented into objects (e.g., bony ossicles, ligaments, fluids, air spaces) and subsequently transformed into vectorized data models. Because they are based on the original voxel resolution their content of vector primitives (e.g., polygons) is huge compared to recent models. Therefore they became polygon-reduced to fit into current computation limitations. So far individual data models of the entire hearing apparatus from tympanic membrane to cochlea out of intact specimen, including separate models of ossicles, ligaments and other components have been obtained, provided in interchangeable data formats (e.g. vector-based: IGES, STL, VRML) and introduced into FEA for modeling of acousto-mechanic transfer characteristics of the middle ear. Their pseudo and real 3D-visualizations (rendering, autostereoscopic display, enlarged solid models) allow easy understanding of the anatomy and pathology of the human hearing organ and may support patient and student education in the field of otology and audiology.

Details

OriginalspracheEnglisch
Seiten (von - bis)146-155
Seitenumfang10
Fachzeitschrift Proceedings of SPIE - The International Society for Optical Engineering
Jahrgang4503
PublikationsstatusVeröffentlicht - 2001
Peer-Review-StatusJa

Externe IDs

ORCID /0000-0003-3894-1175/work/148603873

Schlagworte

Schlagwörter

  • 3D-visualization, Absorption contrast, Geometry model, Inner ear, Microtomography, Middle ear, Synchrotron radiation, Temporal bone, X-rays