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Ferrari M, Taboni S, Carobbio ALC, Buffoli B, Rampinelli V, Mattavelli D, Schreiber A, Verzeletti V, Ravanelli M, Daly MJ, Chan HHL, Sahovaler A, Franz L, Gualtieri T, Rezzani R, Maroldi R, Signoroni A, Deganello A, Irish JC, Nicolai P. Development of a cadaveric head and neck cancer model and three-dimensional analysis of margins in surgical navigation-aided ablations. Eur J Surg Oncol 2021; 48:1235-1242. [PMID: 34916084 DOI: 10.1016/j.ejso.2021.12.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Revised: 12/02/2021] [Accepted: 12/08/2021] [Indexed: 11/17/2022] Open
Abstract
INTRODUCTION The adequacy of the surgical resection is the main controllable variable that is in the hands of the surgical team. There exists an unmet need to increase the rate of negative margins, particularly in cancers invading the craniofacial area. The study aimed 1) at developing a gross tumor model to be utilized for research, educational, and training purposes and 2) establishing the 3-dimensional relationship between the outer surface of the surgical specimen and tumor surface and test the effect of guiding ablations on cadavers with surgical navigation (SN). MATERIAL AND METHODS Seven cadaver heads were employed to create 24 craniofacial tumor models. Simulation of tumor resections was performed by 8 surgeons. Fourteen and 10 resections were performed with and without SN-guidance, respectively. Gross specimens underwent computed tomography and 3-dimensional analysis through dedicated software. Task load was assessed through a validated questionnaire. Tumor model reliability was studied based on visual analogue scale rate by surgeons and radiologists. RESULTS SN reduced the rate of margin involvement, particularly by decreasing the percentage of the gross specimen outer surface involvement in areas uncovered by normal bony structures. The workload of SN-aided ablations was found to be medium-to-somewhat-high. Tumor model reliability was deemed satisfactory except for the extension to bony structures. CONCLUSIONS A gross tumor model for head and neck cancers involving the craniofacial area was developed and resulted satisfactorily reliable from both a surgical and radiologic standpoint. SN reduced the rate of margin involvement, particularly by improving delineation of bone-uncovered areas.
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Affiliation(s)
- Marco Ferrari
- Unit of Otorhinolaryngology - Head and Neck Surgery, Department of Neurosciences, "Azienda Ospedale Università di Padova", University of Padua, Padua, Italy; Guided Therapeutics (GTx) Program International Scholarship, University Health Network (UHN), Toronto, ON, Canada; Technology for Health (PhD Program), Department of Information Engineering, University of Brescia, Brescia, Italy.
| | - Stefano Taboni
- Unit of Otorhinolaryngology - Head and Neck Surgery, Department of Neurosciences, "Azienda Ospedale Università di Padova", University of Padua, Padua, Italy; Guided Therapeutics (GTx) Program International Scholarship, University Health Network (UHN), Toronto, ON, Canada; Artificial Intelligence in Medicine and Innovation in Clinical Research and Methodology (PhD Program), Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
| | - Andrea L C Carobbio
- Unit of Otorhinolaryngology - Head and Neck Surgery, Department of Neurosciences, "Azienda Ospedale Università di Padova", University of Padua, Padua, Italy
| | - Barbara Buffoli
- Section of Anatomy and Physiopathology, Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
| | - Vittorio Rampinelli
- Technology for Health (PhD Program), Department of Information Engineering, University of Brescia, Brescia, Italy; Unit of Otorhinolaryngology - Head and Neck Surgery, Department of Medical and Surgical Specialties, Radiologic Sciences, and Public Health, "ASST Spedali Civili di Brescia", University of Brescia, Brescia, Italy
| | - Davide Mattavelli
- Unit of Otorhinolaryngology - Head and Neck Surgery, Department of Medical and Surgical Specialties, Radiologic Sciences, and Public Health, "ASST Spedali Civili di Brescia", University of Brescia, Brescia, Italy
| | - Alberto Schreiber
- Unit of Otorhinolaryngology - Head and Neck Surgery, Department of Medical and Surgical Specialties, Radiologic Sciences, and Public Health, "ASST Spedali Civili di Brescia", University of Brescia, Brescia, Italy
| | - Vincenzo Verzeletti
- Unit of Otorhinolaryngology - Head and Neck Surgery, Department of Neurosciences, "Azienda Ospedale Università di Padova", University of Padua, Padua, Italy
| | - Marco Ravanelli
- Unit of Radiology, Department of Medical and Surgical Specialties, Radiologic Sciences, and Public Health, "ASST Spedali Civili di Brescia", University of Brescia, Brescia, Italy
| | - Michael J Daly
- Guided Therapeutics (GTx) Program, Techna Institute, University Health Network, Toronto, Ontario, Canada
| | - Harley H L Chan
- Guided Therapeutics (GTx) Program, Techna Institute, University Health Network, Toronto, Ontario, Canada
| | - Axel Sahovaler
- Guided Therapeutics (GTx) Program, Techna Institute, University Health Network, Toronto, Ontario, Canada; Department of Otolaryngology - Head and Neck Surgery/Surgical Oncology, University Health Network, Toronto, Ontario, Canada; Head & Neck Surgery, University College London Hospitals, London, United Kingdom
| | - Leonardo Franz
- Unit of Otorhinolaryngology - Head and Neck Surgery, Department of Neurosciences, "Azienda Ospedale Università di Padova", University of Padua, Padua, Italy; Guided Therapeutics (GTx) Program, Techna Institute, University Health Network, Toronto, Ontario, Canada; Department of Otolaryngology - Head and Neck Surgery/Surgical Oncology, University Health Network, Toronto, Ontario, Canada
| | - Tommaso Gualtieri
- Guided Therapeutics (GTx) Program International Scholarship, University Health Network (UHN), Toronto, ON, Canada; Unit of Otorhinolaryngology - Head and Neck Surgery, Department of Medical and Surgical Specialties, Radiologic Sciences, and Public Health, "ASST Spedali Civili di Brescia", University of Brescia, Brescia, Italy
| | - Rita Rezzani
- Section of Anatomy and Physiopathology, Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
| | - Roberto Maroldi
- Unit of Radiology, Department of Medical and Surgical Specialties, Radiologic Sciences, and Public Health, "ASST Spedali Civili di Brescia", University of Brescia, Brescia, Italy
| | - Alberto Signoroni
- Department of Information Engineering, University of Brescia, Brescia, Italy
| | - Alberto Deganello
- Unit of Otorhinolaryngology - Head and Neck Surgery, Department of Medical and Surgical Specialties, Radiologic Sciences, and Public Health, "ASST Spedali Civili di Brescia", University of Brescia, Brescia, Italy
| | - Jonathan C Irish
- Guided Therapeutics (GTx) Program, Techna Institute, University Health Network, Toronto, Ontario, Canada; Department of Otolaryngology - Head and Neck Surgery/Surgical Oncology, University Health Network, Toronto, Ontario, Canada
| | - Piero Nicolai
- Unit of Otorhinolaryngology - Head and Neck Surgery, Department of Neurosciences, "Azienda Ospedale Università di Padova", University of Padua, Padua, Italy
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