Image-guided orbital surgery: a preclinical validation study using a high-resolution physical model
Objective Preclinical validation study to assess the feasibility and accuracy of electromagnetic image-guided systems (EM-IGS) in orbital surgery using high-fidelity physical orbital anatomy simulators.Methods EM-IGS platform, clinical software, navigation instruments and reference system (StealthSt...
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| Format: | Article |
| Language: | English |
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BMJ Publishing Group
2024-05-01
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| Series: | BMJ Open Ophthalmology |
| Online Access: | https://bmjophth.bmj.com/content/9/1/e001568.full |
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| author | Andrew Dickson Kealan McElhinney Conor Murphy Rizwana I Khan Ronan P Kileen Donncha F O’Brien |
| author_facet | Andrew Dickson Kealan McElhinney Conor Murphy Rizwana I Khan Ronan P Kileen Donncha F O’Brien |
| author_sort | Andrew Dickson |
| collection | DOAJ |
| description | Objective Preclinical validation study to assess the feasibility and accuracy of electromagnetic image-guided systems (EM-IGS) in orbital surgery using high-fidelity physical orbital anatomy simulators.Methods EM-IGS platform, clinical software, navigation instruments and reference system (StealthStation S8, Medtronic) were evaluated in a mock operating theatre at the Royal Victoria Eye and Ear Hospital, a tertiary academic hospital in Dublin, Ireland. Five high-resolution 3D-printed model skulls were created using CT scans of five anonymised patients with an orbital tumour that previously had a successful orbital biopsy or excision. The ability of ophthalmic surgeons to achieve satisfactory system registration in each model was assessed. Subsequently, navigational accuracy was recorded using defined anatomical landmarks as ground truth. Qualitative feedback on the system was also attained.Results Three independent surgeons participated in the study, one junior trainee, one fellow and one consultant. Across models, more senior participants were able to achieve a smaller system-generated registration error in a fewer number of attempts. When assessing navigational accuracy, submillimetre accuracy was achieved for the majority of points (16 landmarks per model, per participant). Qualitative surgeon feedback suggested acceptability of the technology, although interference from mobile phones near the operative field was noted.Conclusion This study suggests the feasibility and accuracy of EM-IGS in a preclinical validation study for orbital surgery using patient specific 3D-printed skulls. This preclinical study provides the foundation for clinical studies to explore the safety and effectiveness of this technology. |
| format | Article |
| id | doaj-art-0e0285b296f04895aeaba731c1085c1d |
| institution | Kabale University |
| issn | 2397-3269 |
| language | English |
| publishDate | 2024-05-01 |
| publisher | BMJ Publishing Group |
| record_format | Article |
| series | BMJ Open Ophthalmology |
| spelling | doaj-art-0e0285b296f04895aeaba731c1085c1d2025-02-06T11:45:11ZengBMJ Publishing GroupBMJ Open Ophthalmology2397-32692024-05-019110.1136/bmjophth-2023-001568Image-guided orbital surgery: a preclinical validation study using a high-resolution physical modelAndrew Dickson0Kealan McElhinney1Conor Murphy2Rizwana I Khan3Ronan P Kileen4Donncha F O’Brien5School of Mechanical & Materials Engineering, University College Dublin, Dublin, IrelandRoyal Victoria Eye and Ear Hospital, Dublin, IrelandRoyal Victoria Eye and Ear Hospital, Dublin, IrelandRoyal Victoria Eye and Ear Hospital, Dublin, IrelandDepartment of Radiology, St Vincent’s University Hospital, Dublin, IrelandRCSI University of Medicine and Health Sciences, Dublin, IrelandObjective Preclinical validation study to assess the feasibility and accuracy of electromagnetic image-guided systems (EM-IGS) in orbital surgery using high-fidelity physical orbital anatomy simulators.Methods EM-IGS platform, clinical software, navigation instruments and reference system (StealthStation S8, Medtronic) were evaluated in a mock operating theatre at the Royal Victoria Eye and Ear Hospital, a tertiary academic hospital in Dublin, Ireland. Five high-resolution 3D-printed model skulls were created using CT scans of five anonymised patients with an orbital tumour that previously had a successful orbital biopsy or excision. The ability of ophthalmic surgeons to achieve satisfactory system registration in each model was assessed. Subsequently, navigational accuracy was recorded using defined anatomical landmarks as ground truth. Qualitative feedback on the system was also attained.Results Three independent surgeons participated in the study, one junior trainee, one fellow and one consultant. Across models, more senior participants were able to achieve a smaller system-generated registration error in a fewer number of attempts. When assessing navigational accuracy, submillimetre accuracy was achieved for the majority of points (16 landmarks per model, per participant). Qualitative surgeon feedback suggested acceptability of the technology, although interference from mobile phones near the operative field was noted.Conclusion This study suggests the feasibility and accuracy of EM-IGS in a preclinical validation study for orbital surgery using patient specific 3D-printed skulls. This preclinical study provides the foundation for clinical studies to explore the safety and effectiveness of this technology.https://bmjophth.bmj.com/content/9/1/e001568.full |
| spellingShingle | Andrew Dickson Kealan McElhinney Conor Murphy Rizwana I Khan Ronan P Kileen Donncha F O’Brien Image-guided orbital surgery: a preclinical validation study using a high-resolution physical model BMJ Open Ophthalmology |
| title | Image-guided orbital surgery: a preclinical validation study using a high-resolution physical model |
| title_full | Image-guided orbital surgery: a preclinical validation study using a high-resolution physical model |
| title_fullStr | Image-guided orbital surgery: a preclinical validation study using a high-resolution physical model |
| title_full_unstemmed | Image-guided orbital surgery: a preclinical validation study using a high-resolution physical model |
| title_short | Image-guided orbital surgery: a preclinical validation study using a high-resolution physical model |
| title_sort | image guided orbital surgery a preclinical validation study using a high resolution physical model |
| url | https://bmjophth.bmj.com/content/9/1/e001568.full |
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