Details
| Original language | English |
|---|---|
| Pages (from-to) | 321-327 |
| Number of pages | 7 |
| Journal | Iranian Journal of Otorhinolaryngology |
| Volume | 30 |
| Issue number | 6 |
| Publication status | Published - Nov 2018 |
Abstract
Introduction: Different approaches have been developed to find the position of the internal auditory canal (IAC) in middle cranial fossa approach. A feasibility study was performed to investigate the combination of cone beam computed tomography (CBCT), optical coherence tomography (OCT), and laser ablation to assist a surgeon in a middle cranial fossa approach by outlining the internal auditory canal (IAC). Materials and Methods: A combined OCT laser setup was used to outline the position of IAC on the surface of the petrous bone in cadaveric semi-heads. The position of the hidden structures, such as IAC, was determined in MATLAB software using an intraoperative CBCT scan. Four titanium spheres attached to the edge of the craniotomy served as reference markers visible in both CBCT and OCT images in order to transfer the plan to the patient. The integrated erbium-doped yttrium aluminum garnet laser was used to mark the surface of the bone by shallow ablation under OCT-based navigation before the surgeon continued the operation. Result: The technical setup was feasible, and the laser marking of the border of the IAC was performed with an overall accuracy of 300 μm. The depth of each ablation phase was 300 μm. The marks indicating a safe path supported the surgeon in the surgery. Conclusion: The technique investigated in the present study could decrease the surgical risks for the mentioned structures and improve the pace and precision of operation.
Keywords
- Computer-assisted surgery, Er-YAG laser, Image-guided surgery, Middle cranial fossa, Optical coherence tomography
ASJC Scopus subject areas
- Medicine(all)
- Otorhinolaryngology
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In: Iranian Journal of Otorhinolaryngology, Vol. 30, No. 6, 11.2018, p. 321-327.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Feasibility Assessment of Optical Coherence Tomography-Guided Laser Labeling in Middle Cranial Fossa Approach
AU - Mohebbi, Saleh
AU - Lexow, Jakob
AU - Fuchs, Alexander
AU - Rau, Thomas
AU - Tauscher, Sebastian
AU - Mirsalehi, Marjan
AU - Hosseini, Seyed Mousa Sadr
AU - Ortmaier, Tobias
AU - Lenarz, Thomas
AU - Majdani, Omid
N1 - Funding information: The present study was supported by German Research Foundation (DFG, grant number: OR196/17-2 / RE 1488/15-2 / MA 4038/3-2) and presented to the Faculty of Ph.D. commission (clinical Fellowship/264 PhD-Program) as a doctoral thesis by the first author (M.S).
PY - 2018/11
Y1 - 2018/11
N2 - Introduction: Different approaches have been developed to find the position of the internal auditory canal (IAC) in middle cranial fossa approach. A feasibility study was performed to investigate the combination of cone beam computed tomography (CBCT), optical coherence tomography (OCT), and laser ablation to assist a surgeon in a middle cranial fossa approach by outlining the internal auditory canal (IAC). Materials and Methods: A combined OCT laser setup was used to outline the position of IAC on the surface of the petrous bone in cadaveric semi-heads. The position of the hidden structures, such as IAC, was determined in MATLAB software using an intraoperative CBCT scan. Four titanium spheres attached to the edge of the craniotomy served as reference markers visible in both CBCT and OCT images in order to transfer the plan to the patient. The integrated erbium-doped yttrium aluminum garnet laser was used to mark the surface of the bone by shallow ablation under OCT-based navigation before the surgeon continued the operation. Result: The technical setup was feasible, and the laser marking of the border of the IAC was performed with an overall accuracy of 300 μm. The depth of each ablation phase was 300 μm. The marks indicating a safe path supported the surgeon in the surgery. Conclusion: The technique investigated in the present study could decrease the surgical risks for the mentioned structures and improve the pace and precision of operation.
AB - Introduction: Different approaches have been developed to find the position of the internal auditory canal (IAC) in middle cranial fossa approach. A feasibility study was performed to investigate the combination of cone beam computed tomography (CBCT), optical coherence tomography (OCT), and laser ablation to assist a surgeon in a middle cranial fossa approach by outlining the internal auditory canal (IAC). Materials and Methods: A combined OCT laser setup was used to outline the position of IAC on the surface of the petrous bone in cadaveric semi-heads. The position of the hidden structures, such as IAC, was determined in MATLAB software using an intraoperative CBCT scan. Four titanium spheres attached to the edge of the craniotomy served as reference markers visible in both CBCT and OCT images in order to transfer the plan to the patient. The integrated erbium-doped yttrium aluminum garnet laser was used to mark the surface of the bone by shallow ablation under OCT-based navigation before the surgeon continued the operation. Result: The technical setup was feasible, and the laser marking of the border of the IAC was performed with an overall accuracy of 300 μm. The depth of each ablation phase was 300 μm. The marks indicating a safe path supported the surgeon in the surgery. Conclusion: The technique investigated in the present study could decrease the surgical risks for the mentioned structures and improve the pace and precision of operation.
KW - Computer-assisted surgery
KW - Er-YAG laser
KW - Image-guided surgery
KW - Middle cranial fossa
KW - Optical coherence tomography
UR - http://www.scopus.com/inward/record.url?scp=85078524444&partnerID=8YFLogxK
U2 - 10.22038/ijorl.2018.30275.1991
DO - 10.22038/ijorl.2018.30275.1991
M3 - Article
AN - SCOPUS:85078524444
VL - 30
SP - 321
EP - 327
JO - Iranian Journal of Otorhinolaryngology
JF - Iranian Journal of Otorhinolaryngology
SN - 2251-7251
IS - 6
ER -