A Biomechanical Model of the Inner Ear: Numerical Simulation of the Caloric Test
Whether two vertical semicircular canals can receive thermal stimuli remains controversial. This study examined the caloric response in the three semicircular canals to the clinical hot caloric test using the finite element method. The results of the developed model showed the horizontal canal (HC)...
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| Format: | Article |
| Language: | English |
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Wiley
2013-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2013/160205 |
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| author | Shuang Shen Yingxi Liu Xiuzhen Sun Wei Zhao Yingfeng Su Shen Yu Wenlong Liu |
| author_facet | Shuang Shen Yingxi Liu Xiuzhen Sun Wei Zhao Yingfeng Su Shen Yu Wenlong Liu |
| author_sort | Shuang Shen |
| collection | DOAJ |
| description | Whether two vertical semicircular canals can receive thermal stimuli remains controversial. This study examined the caloric response in the three semicircular canals to the clinical hot caloric test using the finite element method. The results of the developed model showed the horizontal canal (HC) cupula maximally deflected to the utricle side by approximately 3 μm during the hot supine test. The anterior canal cupula began to receive the caloric stimuli about 20 s after the HC cupula, and it maximally deflected to the canal side by 0.55 μm. The posterior canal cupula did not receive caloric stimuli until approximately 40 s after the HC cupula, and it maximally deflected to the canal side by 0.34 μm. Although the endolymph flow and the cupular deformation change with respect to the head position during the test, the supine test ensures the maximal caloric response in the HC, but no substantial improvement for the responses of the two vertical canals was observed. In conclusion, while the usual supine test is the optimum test for evaluating the functions of the inner ear, more irrigation time is needed in order to effectively clinically examine the vertical canals. |
| format | Article |
| id | doaj-art-918cb285a8d74474ace1d52c79082a7a |
| institution | Kabale University |
| issn | 1537-744X |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-918cb285a8d74474ace1d52c79082a7a2025-02-03T01:22:06ZengWileyThe Scientific World Journal1537-744X2013-01-01201310.1155/2013/160205160205A Biomechanical Model of the Inner Ear: Numerical Simulation of the Caloric TestShuang Shen0Yingxi Liu1Xiuzhen Sun2Wei Zhao3Yingfeng Su4Shen Yu5Wenlong Liu6State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, Dalian 116024, ChinaState Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, Dalian 116024, ChinaDepartment of Otorhinolaryngology, The Second Hospital of Dalian Medical University, Dalian 116027, ChinaState Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, Dalian 116024, ChinaDepartment of Otorhinolaryngology, The Second Hospital of Dalian Medical University, Dalian 116027, ChinaState Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, Dalian 116024, ChinaSchool of Information and Communication Engineering, Dalian University of Technology, Dalian 116024, ChinaWhether two vertical semicircular canals can receive thermal stimuli remains controversial. This study examined the caloric response in the three semicircular canals to the clinical hot caloric test using the finite element method. The results of the developed model showed the horizontal canal (HC) cupula maximally deflected to the utricle side by approximately 3 μm during the hot supine test. The anterior canal cupula began to receive the caloric stimuli about 20 s after the HC cupula, and it maximally deflected to the canal side by 0.55 μm. The posterior canal cupula did not receive caloric stimuli until approximately 40 s after the HC cupula, and it maximally deflected to the canal side by 0.34 μm. Although the endolymph flow and the cupular deformation change with respect to the head position during the test, the supine test ensures the maximal caloric response in the HC, but no substantial improvement for the responses of the two vertical canals was observed. In conclusion, while the usual supine test is the optimum test for evaluating the functions of the inner ear, more irrigation time is needed in order to effectively clinically examine the vertical canals.http://dx.doi.org/10.1155/2013/160205 |
| spellingShingle | Shuang Shen Yingxi Liu Xiuzhen Sun Wei Zhao Yingfeng Su Shen Yu Wenlong Liu A Biomechanical Model of the Inner Ear: Numerical Simulation of the Caloric Test The Scientific World Journal |
| title | A Biomechanical Model of the Inner Ear: Numerical Simulation of the Caloric Test |
| title_full | A Biomechanical Model of the Inner Ear: Numerical Simulation of the Caloric Test |
| title_fullStr | A Biomechanical Model of the Inner Ear: Numerical Simulation of the Caloric Test |
| title_full_unstemmed | A Biomechanical Model of the Inner Ear: Numerical Simulation of the Caloric Test |
| title_short | A Biomechanical Model of the Inner Ear: Numerical Simulation of the Caloric Test |
| title_sort | biomechanical model of the inner ear numerical simulation of the caloric test |
| url | http://dx.doi.org/10.1155/2013/160205 |
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