Measurement of helical angle of the human semicircular canals using rapid-prototyped inner ear model
| Autor: | Hidenori Kanebayashi, Yasuo Ogawa, Mamoru Suzuki |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
Physics
Three dimensional analysis genetic structures Semicircular canal Plane (geometry) 3d model Anatomy Computed tomographic Osseous ampullae medicine.anatomical_structure Otorhinolaryngology otorhinolaryngologic diseases medicine Inner ear sense organs Neurology (clinical) Anterior semicircular canal |
| Zdroj: | Equilibrium Research. 67:294-300 |
| ISSN: | 1882-577X 0385-5716 |
| DOI: | 10.3757/jser.67.294 |
| Popis: | Three dimensional analysis of the plane that includes each semicircular canal is essential for understanding the vestibule-ocular reflex evoked in each plane. The fact that the semicircular canals do not lie in single planes has been reported. We measured the helical angle of the plane where each semicircular canal existed using a simulated 3D model of the inner ear and a software-based three-dimensional computed tomographic (3D-CT) imaging program. The diameter of each semicircular canal was also measured. The helical angle was the greatest in the anterior semicircular canal both in measurement of the models and the software-based images. The diameter was the greatest in the anterior semicircular canal when measured in the models. It is suggested that the helical angle of the semicircular canal potentially influences the sensitivity of the vestibulo-ocular reflex (VOR) that the semicircular canal evokes in each plane. A sufficient VOR may be evoked in the plane less strictly determined. |
| Databáze: | OpenAIRE |
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