Follow the light: projector-based augmented reality intracorporeal system for laparoscopic surgery

Philip Edgcumbe; Rohit Singla; Philip Pratt; Caitlin Schneider; Christopher Nguan; Robert Rohling

doi:10.1117/1.JMI.5.2.021216

14 February 2018 Follow the light: projector-based augmented reality intracorporeal system for laparoscopic surgery

Philip Edgcumbe, Rohit Singla, Philip Pratt, Caitlin Schneider, Christopher Nguan, Robert Rohling

Author Affiliations +

Funded by: Canadian Institutes of Health Research, Natural Sciences and Engineering Research Council of Canada (NSERC), Vancouver Coastal Health Research Institute

Journal of Medical Imaging, Vol. 5, Issue 2, 021216 (February 2018). https://doi.org/10.1117/1.JMI.5.2.021216

Abstract

A projector-based augmented reality intracorporeal system (PARIS) is presented that includes a miniature tracked projector, tracked marker, and laparoscopic ultrasound (LUS) transducer. PARIS was developed to improve the efficacy and safety of laparoscopic partial nephrectomy (LPN). In particular, it has been demonstrated to effectively assist in the identification of tumor boundaries during surgery and to improve the surgeon’s understanding of the underlying anatomy. PARIS achieves this by displaying the orthographic projection of the cancerous tumor on the kidney’s surface. The performance of PARIS was evaluated in a user study with two surgeons who performed 32 simulated robot-assisted partial nephrectomies. They performed 16 simulated partial nephrectomies with PARIS for guidance and 16 simulated partial nephrectomies with only an LUS transducer for guidance. With PARIS, there was a significant reduction [30% ( p<0.05)] in the amount of healthy tissue excised and a trend toward a more accurate dissection around the tumor and more negative margins. The combined point tracking and reprojection root-mean-square error of PARIS was 0.8 mm. PARIS’ proven ability to improve key metrics of LPN surgery and qualitative feedback from surgeons about PARIS supports the hypothesis that it is an effective surgical navigation tool.

Citation Download Citation

Philip Edgcumbe, Rohit Singla, Philip Pratt, Caitlin Schneider, Christopher Nguan, and Robert Rohling "Follow the light: projector-based augmented reality intracorporeal system for laparoscopic surgery," Journal of Medical Imaging 5(2), 021216 (14 February 2018). https://doi.org/10.1117/1.JMI.5.2.021216

Received: 22 September 2017; Accepted: 22 January 2018; Published: 14 February 2018

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