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Biomedical Optics Express

Biomedical Optics Express

  • Editor: Joseph A. Izatt
  • Vol. 5, Iss. 8 — Aug. 1, 2014
  • pp: 2548–2562

Characterization and in-vivo evaluation of a multi-resolution foveated laparoscope for minimally invasive surgery

Yi Qin, Hong Hua, and Mike Nguyen  »View Author Affiliations


Biomedical Optics Express, Vol. 5, Issue 8, pp. 2548-2562 (2014)
http://dx.doi.org/10.1364/BOE.5.002548


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Abstract

The state-of-the-art laparoscope lacks the ability to capture high-magnification and wide-angle images simultaneously, which introduces challenges when both close- up views for details and wide-angle overviews for orientation are required in clinical practice. A multi-resolution foveated laparoscope (MRFL) which can provide the surgeon both high-magnification close-up and wide-angle images was proposed to address the limitations of the state-of-art surgical laparoscopes. In this paper, we present the overall system design from both clinical and optical system perspectives along with a set of experiments to characterize the optical performances of our prototype system and describe our preliminary in-vivo evaluation of the prototype with a pig model. The experimental results demonstrate that at the optimum working distance of 120mm, the high-magnification probe has a resolution of 6.35lp/mm and image a surgical area of 53 × 40mm2; the wide-angle probe provides a surgical area coverage of 160 × 120mm2 with a resolution of 2.83lp/mm. The in-vivo evaluation demonstrates that MRFL has great potential in clinical applications for improving the safety and efficiency of the laparoscopic surgery.

© 2014 Optical Society of America

OCIS Codes
(110.0110) Imaging systems : Imaging systems
(120.3890) Instrumentation, measurement, and metrology : Medical optics instrumentation
(170.2150) Medical optics and biotechnology : Endoscopic imaging
(170.3880) Medical optics and biotechnology : Medical and biological imaging
(220.0220) Optical design and fabrication : Optical design and fabrication

ToC Category:
Endoscopes, Catheters and Micro-Optics

History
Original Manuscript: April 24, 2014
Revised Manuscript: June 22, 2014
Manuscript Accepted: July 5, 2014
Published: July 10, 2014

Citation
Yi Qin, Hong Hua, and Mike Nguyen, "Characterization and in-vivo evaluation of a multi-resolution foveated laparoscope for minimally invasive surgery," Biomed. Opt. Express 5, 2548-2562 (2014)
http://www.opticsinfobase.org/boe/abstract.cfm?URI=boe-5-8-2548


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