학술논문
Analysis of the coplanarity of functional pairs of semicircular canals using three-dimensional images reconstructed from temporal bone magnetic resonance imaging.
Document Type
Article
Author
Source
Subject
*SEMICIRCULAR canal physiology
*DIZZINESS
*MAGNETIC resonance imaging
*TEMPORAL bone
*WEIGHTS & measures
*DATA analysis software
*DESCRIPTIVE statistics
*BENIGN paroxysmal positional vertigo
*THERAPEUTICS
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Language
ISSN
0022-2151
Abstract
Objectives:This study was conducted to investigate the angles and orientation of semicircular canals, and the coplanarity of functional canal pairs.Methods:Fluid signals in semicircular canals were reconstructed with three-dimensional reconstruction software using 20 temporal bone magnetic resonance images of normal subjects. The angles between each pair of semicircular canals were measured.Results:The mean angles between the anterior and horizontal semicircular canal plane, the horizontal and posterior semicircular canal plane, and the anterior and posterior semicircular canal plane were 83.7°, 82.5° and 88.4°, respectively. Pairs of contralateral synergistic canal planes were formed 15.1° between the right and left horizontal semicircular canal planes, 21.2° between the right anterior and left posterior semicircular canal, and 21.7° between the left anterior and right posterior semicircular canal.Conclusion:Each semicircular canal makes an almost right angle with other canals, but synergistically acting functional canal pairs of both ears do not lie in exactly the same plane. [ABSTRACT FROM PUBLISHER]