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In this study, we attempted to reconstruct a three-dimensional (3D) image of temporal bone structures with malformation using computed tomography (CI) imaging and examined its usefulness in the surgical planning of CI in a malformed ear. Methods: We prepared 3D images for 6 separate CI cases before surgery. First, we manually colored preoperative CT images using Photoshop CS Extended. We then converted the colored CT images to 3D images using Delta Viewer, freeware for Macintosh. Before surgery, we discussed any problems anticipated based on the 3D images and plans for surgery with those who would be performing the CI. Results: Case 1: The subject was a 3-year-old boy with malformed ossicles, semicircular canal (SC) hypoplasia, internal auditory canal stenosis, and an abnormal course of the FN. 3D image indicated that the stapes were absent, and the FN was more anteriorly displaced, so that it was difficult to perform cochleostomy.The surgical findings were similar to those depicted on the 3D image, so we could insert an electrode based on the preoperative image simulation without complications. Case 2: The subject was a 7-year-old boy with malformed stapes, atresia of the round window, cochlear and SC aplasia, and an abnormal course of the FN with bifurcation. CI was performed with no problems, in the same manner as in Case 1. Conclusion: We were able to successfully depict the structures of the inner ear, ossicles, and FN as 3D images, which are very easy to understand visually and intuitively. 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The Usefulness of Reconstructed 3D Images in Surgical Planning for Cochlear Implantation in a Malformed Ear with an Abnormal Course of the Facial Nerve
http://hdl.handle.net/10069/29404
http://hdl.handle.net/10069/29404305bd5d5-8051-422d-bfc8-b69263922e14
名前 / ファイル | ライセンス | アクション |
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CEO5_S48.pdf (4.4 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2012-10-09 | |||||
タイトル | ||||||
タイトル | The Usefulness of Reconstructed 3D Images in Surgical Planning for Cochlear Implantation in a Malformed Ear with an Abnormal Course of the Facial Nerve | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Cochlear implantation | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Facial nerve anomaly | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Temporal bone | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Three-dimensional image | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者 |
Hara, Minoru
× Hara, Minoru× Takahashi, Haruo× Kanda, Yukihiko |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Objectives: It is not unusual for a cochlear implantation (CI) candidate to have some type of ear malformation, in particular an abnormal course of the facial nerve (FN). In this study, we attempted to reconstruct a three-dimensional (3D) image of temporal bone structures with malformation using computed tomography (CI) imaging and examined its usefulness in the surgical planning of CI in a malformed ear. Methods: We prepared 3D images for 6 separate CI cases before surgery. First, we manually colored preoperative CT images using Photoshop CS Extended. We then converted the colored CT images to 3D images using Delta Viewer, freeware for Macintosh. Before surgery, we discussed any problems anticipated based on the 3D images and plans for surgery with those who would be performing the CI. Results: Case 1: The subject was a 3-year-old boy with malformed ossicles, semicircular canal (SC) hypoplasia, internal auditory canal stenosis, and an abnormal course of the FN. 3D image indicated that the stapes were absent, and the FN was more anteriorly displaced, so that it was difficult to perform cochleostomy.The surgical findings were similar to those depicted on the 3D image, so we could insert an electrode based on the preoperative image simulation without complications. Case 2: The subject was a 7-year-old boy with malformed stapes, atresia of the round window, cochlear and SC aplasia, and an abnormal course of the FN with bifurcation. CI was performed with no problems, in the same manner as in Case 1. Conclusion: We were able to successfully depict the structures of the inner ear, ossicles, and FN as 3D images, which are very easy to understand visually and intuitively. These 3D images of the malformed ear are useful in preoperative image simulation and in surgical planning for those performing a CI procedure. | |||||
書誌情報 |
Clinical and Experimental Otorhinolaryngology 巻 5, 号 Suppl 1, p. S48-S52, 発行日 2012-04-30 |
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出版者 | ||||||
出版者 | Korean Society of Otolaryngology | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 19768710 | |||||
EISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 20050720 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.3342/ceo.2012.5.S1.S48 | |||||
権利 | ||||||
権利情報 | © 2012 by Korean Society of Otorhinolaryngology-Head and Neck Surgery. | |||||
権利 | ||||||
権利情報 | This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
引用 | ||||||
内容記述タイプ | Other | |||||
内容記述 | Clinical and Experimental Otorhinolaryngology, 5(S1), pp.S48-S52; 2012 |