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The aim of this study was to compare the CI electrode localization using an automated method (image-guided cochlear implant programming, IGCIP) with the clinically established manual method.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Methods<\/jats:title>\n                <jats:p>This prospective experimental study was conducted on a dataset comprising <jats:italic>N<\/jats:italic>=50 subjects undergoing cochlear implantation with a Nucleus\u00ae CI532 or CI632 Slim Modiolar electrode. Scalar localization, electrode-to-modiolar axis distances (EMD) and angular insertion depth (aDOI) were compared between the automated IGCIP tool and the manual method. Two raters made the manual measurements, and the interrater reliability (\u00b11.96\u00b7SD) was determined as the reference for the method comparison. The method comparison was performed using a correlation analysis and a Bland-Altman analysis.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Results<\/jats:title>\n                <jats:p>Concerning the scalar localization, all electrodes were localized both manually and automatically in the scala tympani. The interrater differences ranged between \u00b10.2 mm (EMD) and \u00b110\u00b0 (aDOI). There was a bias between the automatic and manual method in measuring both localization parameters, which on the one hand was smaller than the interrater variations. On the other hand, this bias depended on the magnitude of the EMD respectively aDOI. A post-hoc analysis revealed that the deviations between the methods were likely due to a different selection of mid-modiolar axis.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Conclusions<\/jats:title>\n                <jats:p>The IGCIP is a promising tool for automated processing of CT and DVT scans and has useful functionality such as being able to segment the cochlear using post-operative scans. When measuring EMD, the IGCIP tool is superior to the manual method because the smallest possible distance to the axis is determined depending on the cochlear turn, whereas the manual method selects the helicotrema as the reference point rigidly. Functionality to deal with motion artifacts and measurements of aDOI according to the consensus approach are necessary, otherwise the IGCIP is not unrestrictedly ready for clinical use.<\/jats:p>\n              <\/jats:sec>","DOI":"10.1186\/s12880-023-01102-6","type":"journal-article","created":{"date-parts":[[2023,9,29]],"date-time":"2023-09-29T13:01:51Z","timestamp":1695992511000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Evaluation of CI electrode position from imaging: comparison of an automated technique with the established manual method"],"prefix":"10.1186","volume":"23","author":[{"given":"Alexander","family":"Mewes","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christopher","family":"Bennett","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jan","family":"Dambon","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Goetz","family":"Brademann","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Matthias","family":"Hey","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2023,9,29]]},"reference":[{"key":"1102_CR1","doi-asserted-by":"publisher","DOI":"10.1097\/AUD.0b013e318031542e","author":"A Aschendorff","year":"2007","unstructured":"Aschendorff A, Kromeier J, Klenzner T, Laszig R. 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Med Image Comput Comput Assist Interv. 2019. https:\/\/doi.org\/10.1007\/978-3-030-32254-0_1.","journal-title":"Med Image Comput Comput Assist Interv."}],"container-title":["BMC Medical Imaging"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1186\/s12880-023-01102-6.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/article\/10.1186\/s12880-023-01102-6\/fulltext.html","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1186\/s12880-023-01102-6.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,11,19]],"date-time":"2023-11-19T03:13:06Z","timestamp":1700363586000},"score":1,"resource":{"primary":{"URL":"https:\/\/bmcmedimaging.biomedcentral.com\/articles\/10.1186\/s12880-023-01102-6"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2023,9,29]]},"references-count":53,"journal-issue":{"issue":"1","published-online":{"date-parts":[[2023,12]]}},"alternative-id":["1102"],"URL":"https:\/\/doi.org\/10.1186\/s12880-023-01102-6","relation":{},"ISSN":["1471-2342"],"issn-type":[{"value":"1471-2342","type":"electronic"}],"subject":[],"published":{"date-parts":[[2023,9,29]]},"assertion":[{"value":"13 February 2023","order":1,"name":"received","label":"Received","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"13 September 2023","order":2,"name":"accepted","label":"Accepted","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"29 September 2023","order":3,"name":"first_online","label":"First Online","group":{"name":"ArticleHistory","label":"Article History"}},{"order":1,"name":"Ethics","group":{"name":"EthicsHeading","label":"Declarations"}},{"value":"The Ethics Committee at the Faculty of Medicine of Kiel University (CAU) approved all experimental protocols (reference: D 522\/21). Informed consent was obtained from all subjects. We confirm that all methods were carried out in accordance with relevant guidelines and regulations.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethics approval and consent to participate"}},{"value":"Not applicable.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Consent for publication"}},{"value":"AM, JD, GB and MH declare general financial support by Cochlear Ltd. (research grant to institution). CB is an employee of Cochlear Ltd.\u00a0(Sydney, Australia). CB contributed to the data collection, analysis, and preparation of this manuscript. Cochlear Ltd. was not involved in the study design and decision to publish. The authors alone are responsible for the content and writing of this paper.\u00a0JD receives financial support within the framework of the clinician-scientist program of Kiel University\u2019s faculty of medicine.","order":4,"name":"Ethics","group":{"name":"EthicsHeading","label":"Competing interests"}}],"article-number":"143"}}