Calibration and test of a hyperspectral imaging prototype for intra-operative surgical assistance

Dorra Nouri; Yves Lucas; Sylvie Treuillet

doi:10.1117/12.2006620

29 March 2013 Calibration and test of a hyperspectral imaging prototype for intra-operative surgical assistance

Dorra Nouri, Yves Lucas, Sylvie Treuillet

Proceedings Volume 8676, Medical Imaging 2013: Digital Pathology; 86760P (2013) https://doi.org/10.1117/12.2006620
Event: SPIE Medical Imaging, 2013, Lake Buena Vista (Orlando Area), Florida, United States

Abstract

A significant recent breakthrough in medical imaging is the development of a new non-invasive modality based on multispectral and hyperspectral imaging that can be easily integrated in the operating room. This technology consists of collecting series of images at wavelength intervals of only few nanometers and in which single pixels have spectral information content relevant to the scene under observation. Before becoming of practical interest for the clinician, such system should meet important requirements. Firstly, it should enable real reflectance measurements and high quality images to dispose of valuable physical data after spatial and spectral calibration. Secondly, quick band pass scanning and a smart interface are needed for intra-operative mode. Finally, experimentation is required to develop expert knowledge for hyperspectral image interpretation and result display on RGB screens, to assist the surgeon with tissue detection and diagnostic capabilities during an intervention. This paper is focused mainly on the two first specifications of this methodology applied to a liquid crystal tunable filter (LCTF) based visible and near infrared spectral imaging system. The system consists of an illumination unit and a spectral imager that includes a monochrome camera, two LCTFs and a fixed focal lens. It also involves a computer with the data acquisition software. The system can capture hyperspectral images in the spectral range of 400 – 1100 nm. Results of preclinical experiments indicated that anatomical tissues can be distinguished especially in near infrared bands. This promises a great capability of hyperspectral imaging to bring efficient assistance for surgeons.

Citation Download Citation

Dorra Nouri, Yves Lucas, and Sylvie Treuillet "Calibration and test of a hyperspectral imaging prototype for intra-operative surgical assistance", Proc. SPIE 8676, Medical Imaging 2013: Digital Pathology, 86760P (29 March 2013); https://doi.org/10.1117/12.2006620

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available