Combined application of single-energy metal artifact reduction and reconstruction techniques in patients with Cochlear implants
Abstract Background The purpose of this study was to develop an effective method of reducing metal artifacts in cochlear implant (CI) electrodes. Methods The temporal bones of 30 patients (34 ears) after CI were examined with 320-detector row computed tomography, which was evaluated by two senior ra...
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SAGE Publishing
2020-09-01
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| Series: | Journal of Otolaryngology - Head and Neck Surgery |
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| Online Access: | http://link.springer.com/article/10.1186/s40463-020-00462-1 |
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| author | Fanqin Wei Jiahui Li Chunxiang Zhou Yun Li Xianren Wang Bixue Huang Qiyang Sun Guanxia Xiong |
| author_facet | Fanqin Wei Jiahui Li Chunxiang Zhou Yun Li Xianren Wang Bixue Huang Qiyang Sun Guanxia Xiong |
| author_sort | Fanqin Wei |
| collection | DOAJ |
| description | Abstract Background The purpose of this study was to develop an effective method of reducing metal artifacts in cochlear implant (CI) electrodes. Methods The temporal bones of 30 patients (34 ears) after CI were examined with 320-detector row computed tomography, which was evaluated by two senior radiologists using a double-blind method. Noise, artifact index, signal-to-noise ratio, and the subjective image quality score were compared before versus after using single-energy metal artifact reduction (SEMAR). The electrode position, single electrode visibility, and electrode count were evaluated using SEMAR combined with either multi-planar reconstruction (MPR) or maximum intensity projection. Results The two radiologists’ measurements had good consistency. SEMAR significantly reduced the image noise and artifacts index and significantly improved the signal-to-noise ratio and subjective image quality score (P < 0.01). The combination of SEMAR with MPR was conducive to accurate assessment of electrode position and single-electrode visibility. The combination of SEMAR with MIP facilitated accurate and intuitive matching of the assessed electrode count with the number of electrodes implanted during the operation (P = 0.062). Conclusion SEMAR significantly reduces metal artifacts generated by CI electrodes and improves the quality of computed tomography images. The combination of SEMAR with MPR and maximum intensity projection is beneficial for evaluating the position and number of CI electrodes. |
| format | Article |
| id | doaj-art-ff5d33b5c9574cf29065bc7ef3288a44 |
| institution | Kabale University |
| issn | 1916-0216 |
| language | English |
| publishDate | 2020-09-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Journal of Otolaryngology - Head and Neck Surgery |
| spelling | doaj-art-ff5d33b5c9574cf29065bc7ef3288a442025-02-03T10:54:11ZengSAGE PublishingJournal of Otolaryngology - Head and Neck Surgery1916-02162020-09-014911910.1186/s40463-020-00462-1Combined application of single-energy metal artifact reduction and reconstruction techniques in patients with Cochlear implantsFanqin Wei0Jiahui Li1Chunxiang Zhou2Yun Li3Xianren Wang4Bixue Huang5Qiyang Sun6Guanxia Xiong7Department of Otorhinolaryngology Head and Neck Surgery, the First Affiliated Hospital, Sun Yat-sen UniversityDepartment of Otorhinolaryngology Head and Neck Surgery, the First Affiliated Hospital, Sun Yat-sen UniversityDepartment of Otorhinolaryngology Head and Neck Surgery, the First Affiliated Hospital, Sun Yat-sen UniversityDepartment of Otorhinolaryngology Head and Neck Surgery, the First Affiliated Hospital, Sun Yat-sen UniversityDepartment of Otorhinolaryngology Head and Neck Surgery, the First Affiliated Hospital, Sun Yat-sen UniversityDepartment of Otorhinolaryngology Head and Neck Surgery, the First Affiliated Hospital, Sun Yat-sen UniversityDepartment of Otorhinolaryngology Head and Neck Surgery, the First Affiliated Hospital, Sun Yat-sen UniversityDepartment of Otorhinolaryngology Head and Neck Surgery, the First Affiliated Hospital, Sun Yat-sen UniversityAbstract Background The purpose of this study was to develop an effective method of reducing metal artifacts in cochlear implant (CI) electrodes. Methods The temporal bones of 30 patients (34 ears) after CI were examined with 320-detector row computed tomography, which was evaluated by two senior radiologists using a double-blind method. Noise, artifact index, signal-to-noise ratio, and the subjective image quality score were compared before versus after using single-energy metal artifact reduction (SEMAR). The electrode position, single electrode visibility, and electrode count were evaluated using SEMAR combined with either multi-planar reconstruction (MPR) or maximum intensity projection. Results The two radiologists’ measurements had good consistency. SEMAR significantly reduced the image noise and artifacts index and significantly improved the signal-to-noise ratio and subjective image quality score (P < 0.01). The combination of SEMAR with MPR was conducive to accurate assessment of electrode position and single-electrode visibility. The combination of SEMAR with MIP facilitated accurate and intuitive matching of the assessed electrode count with the number of electrodes implanted during the operation (P = 0.062). Conclusion SEMAR significantly reduces metal artifacts generated by CI electrodes and improves the quality of computed tomography images. The combination of SEMAR with MPR and maximum intensity projection is beneficial for evaluating the position and number of CI electrodes.http://link.springer.com/article/10.1186/s40463-020-00462-1SEMAR; electrodeImage qualityComputed tomography |
| spellingShingle | Fanqin Wei Jiahui Li Chunxiang Zhou Yun Li Xianren Wang Bixue Huang Qiyang Sun Guanxia Xiong Combined application of single-energy metal artifact reduction and reconstruction techniques in patients with Cochlear implants Journal of Otolaryngology - Head and Neck Surgery SEMAR; electrode Image quality Computed tomography |
| title | Combined application of single-energy metal artifact reduction and reconstruction techniques in patients with Cochlear implants |
| title_full | Combined application of single-energy metal artifact reduction and reconstruction techniques in patients with Cochlear implants |
| title_fullStr | Combined application of single-energy metal artifact reduction and reconstruction techniques in patients with Cochlear implants |
| title_full_unstemmed | Combined application of single-energy metal artifact reduction and reconstruction techniques in patients with Cochlear implants |
| title_short | Combined application of single-energy metal artifact reduction and reconstruction techniques in patients with Cochlear implants |
| title_sort | combined application of single energy metal artifact reduction and reconstruction techniques in patients with cochlear implants |
| topic | SEMAR; electrode Image quality Computed tomography |
| url | http://link.springer.com/article/10.1186/s40463-020-00462-1 |
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