Application of an RGBD augmented C-arm for minimally invasive scoliosis surgery assistance

Séverine Habert; Ulrich Eck; Pascal Fallavollita; Stefan Parent; Nassir Navab; Farida Cheriet

Application of an RGBD augmented C-arm for minimally invasive scoliosis surgery assistance

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Author(s): Séverine Habert¹ ; Ulrich Eck¹ ; Pascal Fallavollita² ; Stefan Parent³ ; Nassir Navab^{1, 4} ; Farida Cheriet⁵
- Affiliations: 1: Chair for Computer Aided Medical Procedures , Technische Universität München , Munich , Germany ;
  2: Faculty of Health Sciences , University of Ottawa , Ottawa , Canada ;
  3: Depuy Spine Canada Inc. Academic Research Chair in Spinal Deformities , Sainte-Justine Hospital , Montréal , Canada ;
  4: Chair for Computer Aided Medical Procedures , Johns Hopkins University , Baltimore , USA ;
  5: Laboratory of Imaging and Vision 4D , École Polytechnique de Montréal , Montréal , Canada
Source: Volume 4, Issue 5, October 2017, p. 179 – 183
DOI: 10.1049/htl.2017.0069 , Online ISSN 2053-3713

This is an open access article published by the IET under the Creative Commons Attribution -NonCommercial License (http://creativecommons.org/licenses/by-nc/3.0/)

Received 27/07/2017, Accepted 31/07/2017, Published 14/09/2017

Minimally invasive surgeries (MISs) are gaining popularity as alternatives to conventional open surgeries. In thoracoscopic scoliosis MIS, fluoroscopy is used to guide pedicle screw placement and to visualise the effect of the intervention on the spine curvature. However, cosmetic external appearance is the most important concern for patients, while correction of the spine and achieving coronal and sagittal trunk balance are the top priorities for surgeons. The authors present the feasibility study of the first intra-operative assistive system for scoliosis surgery composed of a single RGBD camera affixed on a C-arm which allows visualising in real time the surgery effects on the patient trunk surface in the transverse plane. They perform three feasibility experiments from simulated data based on scoliotic patients to live acquisition from non-scoliotic mannequin and person, all showing that the proposed system accuracy is comparable with scoliotic surface reconstruction state of art.

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Application of an RGBD augmented C-arm for minimally invasive scoliosis surgery assistance

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