Diffuse reflectance measurement tool for laparoscopic surgery

Mario E. Giardini; Annett B. Klemm; Andrea Di Falco; Thomas F. Krauss

doi:10.1117/12.854127

17 May 2010 Diffuse reflectance measurement tool for laparoscopic surgery

Mario E. Giardini, Annett B. Klemm, Andrea Di Falco, Thomas F. Krauss

Proceedings Volume 7715, Biophotonics: Photonic Solutions for Better Health Care II; 77150Z (2010) https://doi.org/10.1117/12.854127
Event: SPIE Photonics Europe, 2010, Brussels, Belgium

Abstract

Continuous-wave diffuse reflectance or Near Infrared Spectroscopy (NIRS) offers the possibility to perform a preliminary screening of tissue for ischemia or other tissue anomalies. A tool for intracavity NIRS measurements during laparoscopic surgery, developed within the framework of the FP7-IP ARAKNES (Array of Robots Augmenting the KiNematics of Endoluminal Surgery) project, is described. It consists of a probe, that is located on the tip of an appropriately shaped laparoscopic manipulator and then applied to the tissue. Such a probe employs an array of incoherent semiconductor light sources (LEDs) frequency-multiplexed on a single detector using a lock-in technique. The resulting overall tool structure is simple and compact, and allows efficient coupling of the emitted light towards the tissue. The tool has high responsivity and enables fast and accurate measurements. A dataset gathered from in-vivo tissue is presented. The performance both indicates direct applicability of the tool to significant surgical issues (ischemia detection), and clearly indicates the possibility of further miniaturizing the probe head towards catheterized approaches.

Citation Download Citation

Mario E. Giardini, Annett B. Klemm, Andrea Di Falco, and Thomas F. Krauss "Diffuse reflectance measurement tool for laparoscopic surgery", Proc. SPIE 7715, Biophotonics: Photonic Solutions for Better Health Care II, 77150Z (17 May 2010); https://doi.org/10.1117/12.854127

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