An optically-guided cochlear implant sheath for real-time monitoring of electrode insertion into the human cochlea
Abstract In cochlear implant surgery, insertion of perimodiolar electrode arrays into the scala tympani can be complicated by trauma or even accidental translocation of the electrode array within the cochlea. In patients with partial hearing loss, cochlear trauma can not only negatively affect impla...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2022-11-01
|
| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-022-23653-4 |
| _version_ | 1798019129675874304 |
|---|---|
| author | Anastasiya Starovoyt Bryden C. Quirk Tristan Putzeys Greet Kerckhofs Johan Nuyts Jan Wouters Robert A. McLaughlin Nicolas Verhaert |
| author_facet | Anastasiya Starovoyt Bryden C. Quirk Tristan Putzeys Greet Kerckhofs Johan Nuyts Jan Wouters Robert A. McLaughlin Nicolas Verhaert |
| author_sort | Anastasiya Starovoyt |
| collection | DOAJ |
| description | Abstract In cochlear implant surgery, insertion of perimodiolar electrode arrays into the scala tympani can be complicated by trauma or even accidental translocation of the electrode array within the cochlea. In patients with partial hearing loss, cochlear trauma can not only negatively affect implant performance, but also reduce residual hearing function. These events have been related to suboptimal positioning of the cochlear implant electrode array with respect to critical cochlear walls of the scala tympani (modiolar wall, osseous spiral lamina and basilar membrane). Currently, the position of the electrode array in relation to these walls cannot be assessed during the insertion and the surgeon depends on tactile feedback, which is unreliable and often comes too late. This study presents an image-guided cochlear implant device with an integrated, fiber-optic imaging probe that provides real-time feedback using optical coherence tomography during insertion into the human cochlea. This novel device enables the surgeon to accurately detect and identify the cochlear walls ahead and to adjust the insertion trajectory, avoiding collision and trauma. The functionality of this prototype has been demonstrated in a series of insertion experiments, conducted by experienced cochlear implant surgeons on fresh-frozen human cadaveric cochleae. |
| first_indexed | 2024-04-11T16:35:43Z |
| format | Article |
| id | doaj.art-37426aef53994ca7ae2dd6a7e7cfddf3 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-04-11T16:35:43Z |
| publishDate | 2022-11-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-37426aef53994ca7ae2dd6a7e7cfddf32022-12-22T04:13:50ZengNature PortfolioScientific Reports2045-23222022-11-0112111210.1038/s41598-022-23653-4An optically-guided cochlear implant sheath for real-time monitoring of electrode insertion into the human cochleaAnastasiya Starovoyt0Bryden C. Quirk1Tristan Putzeys2Greet Kerckhofs3Johan Nuyts4Jan Wouters5Robert A. McLaughlin6Nicolas Verhaert7Department of Neurosciences, ExpORL, KU LeuvenAustralian Research Council Centre of Excellence for Nanoscale BioPhotonics, Faculty of Health and Medical Sciences, The University of AdelaideDepartment of Neurosciences, ExpORL, KU LeuvenBiomechanics Laboratory, Institute of Mechanics, Materials, and Civil Engineering, UCLouvainDepartment of Imaging and Pathology, Division of Nuclear Medicine, KU LeuvenDepartment of Neurosciences, ExpORL, KU LeuvenAustralian Research Council Centre of Excellence for Nanoscale BioPhotonics, Faculty of Health and Medical Sciences, The University of AdelaideDepartment of Neurosciences, ExpORL, KU LeuvenAbstract In cochlear implant surgery, insertion of perimodiolar electrode arrays into the scala tympani can be complicated by trauma or even accidental translocation of the electrode array within the cochlea. In patients with partial hearing loss, cochlear trauma can not only negatively affect implant performance, but also reduce residual hearing function. These events have been related to suboptimal positioning of the cochlear implant electrode array with respect to critical cochlear walls of the scala tympani (modiolar wall, osseous spiral lamina and basilar membrane). Currently, the position of the electrode array in relation to these walls cannot be assessed during the insertion and the surgeon depends on tactile feedback, which is unreliable and often comes too late. This study presents an image-guided cochlear implant device with an integrated, fiber-optic imaging probe that provides real-time feedback using optical coherence tomography during insertion into the human cochlea. This novel device enables the surgeon to accurately detect and identify the cochlear walls ahead and to adjust the insertion trajectory, avoiding collision and trauma. The functionality of this prototype has been demonstrated in a series of insertion experiments, conducted by experienced cochlear implant surgeons on fresh-frozen human cadaveric cochleae.https://doi.org/10.1038/s41598-022-23653-4 |
| spellingShingle | Anastasiya Starovoyt Bryden C. Quirk Tristan Putzeys Greet Kerckhofs Johan Nuyts Jan Wouters Robert A. McLaughlin Nicolas Verhaert An optically-guided cochlear implant sheath for real-time monitoring of electrode insertion into the human cochlea Scientific Reports |
| title | An optically-guided cochlear implant sheath for real-time monitoring of electrode insertion into the human cochlea |
| title_full | An optically-guided cochlear implant sheath for real-time monitoring of electrode insertion into the human cochlea |
| title_fullStr | An optically-guided cochlear implant sheath for real-time monitoring of electrode insertion into the human cochlea |
| title_full_unstemmed | An optically-guided cochlear implant sheath for real-time monitoring of electrode insertion into the human cochlea |
| title_short | An optically-guided cochlear implant sheath for real-time monitoring of electrode insertion into the human cochlea |
| title_sort | optically guided cochlear implant sheath for real time monitoring of electrode insertion into the human cochlea |
| url | https://doi.org/10.1038/s41598-022-23653-4 |
| work_keys_str_mv | AT anastasiyastarovoyt anopticallyguidedcochlearimplantsheathforrealtimemonitoringofelectrodeinsertionintothehumancochlea AT brydencquirk anopticallyguidedcochlearimplantsheathforrealtimemonitoringofelectrodeinsertionintothehumancochlea AT tristanputzeys anopticallyguidedcochlearimplantsheathforrealtimemonitoringofelectrodeinsertionintothehumancochlea AT greetkerckhofs anopticallyguidedcochlearimplantsheathforrealtimemonitoringofelectrodeinsertionintothehumancochlea AT johannuyts anopticallyguidedcochlearimplantsheathforrealtimemonitoringofelectrodeinsertionintothehumancochlea AT janwouters anopticallyguidedcochlearimplantsheathforrealtimemonitoringofelectrodeinsertionintothehumancochlea AT robertamclaughlin anopticallyguidedcochlearimplantsheathforrealtimemonitoringofelectrodeinsertionintothehumancochlea AT nicolasverhaert anopticallyguidedcochlearimplantsheathforrealtimemonitoringofelectrodeinsertionintothehumancochlea AT anastasiyastarovoyt opticallyguidedcochlearimplantsheathforrealtimemonitoringofelectrodeinsertionintothehumancochlea AT brydencquirk opticallyguidedcochlearimplantsheathforrealtimemonitoringofelectrodeinsertionintothehumancochlea AT tristanputzeys opticallyguidedcochlearimplantsheathforrealtimemonitoringofelectrodeinsertionintothehumancochlea AT greetkerckhofs opticallyguidedcochlearimplantsheathforrealtimemonitoringofelectrodeinsertionintothehumancochlea AT johannuyts opticallyguidedcochlearimplantsheathforrealtimemonitoringofelectrodeinsertionintothehumancochlea AT janwouters opticallyguidedcochlearimplantsheathforrealtimemonitoringofelectrodeinsertionintothehumancochlea AT robertamclaughlin opticallyguidedcochlearimplantsheathforrealtimemonitoringofelectrodeinsertionintothehumancochlea AT nicolasverhaert opticallyguidedcochlearimplantsheathforrealtimemonitoringofelectrodeinsertionintothehumancochlea |