Implementation of laser speckle contrast analysis as connection kit for mobile phone for assessment of skin blood flow

Dainis Jakovels; Inga Saknite; Janis Spigulis

doi:10.1117/12.2052614

8 May 2014 Implementation of laser speckle contrast analysis as connection kit for mobile phone for assessment of skin blood flow

Dainis Jakovels, Inga Saknite, Janis Spigulis

Author Affiliations +

Proceedings Volume 9129, Biophotonics: Photonic Solutions for Better Health Care IV; 91293I (2014) https://doi.org/10.1117/12.2052614
Event: SPIE Photonics Europe, 2014, Brussels, Belgium

Abstract

Laser speckle contrast analysis (LASCA) offers a non-contact, full-field, and real-time mapping of capillary blood flow and can be considered as an alternative method to Laser Doppler perfusion imaging. LASCA technique has been implemented in several commercial instruments. However, these systems are still too expensive and bulky to be widely available. Several optical techniques have found new implementations as connection kits for mobile phones thus offering low cost screening devices.

In this work we demonstrate simple implementation of LASCA imaging technique as connection kit for mobile phone for primary low-cost assessment of skin blood flow. Stabilized 650 nm and 532 nm laser diode modules were used for LASCA illumination. Dual wavelength illumination could provide additional information about skin hemoglobin and oxygenation level.

The proposed approach was tested for arterial occlusion and heat test. Besides, blood flow maps of injured and provoked skin were demonstrated.

Citation Download Citation

Dainis Jakovels, Inga Saknite, and Janis Spigulis "Implementation of laser speckle contrast analysis as connection kit for mobile phone for assessment of skin blood flow", Proc. SPIE 9129, Biophotonics: Photonic Solutions for Better Health Care IV, 91293I (8 May 2014); https://doi.org/10.1117/12.2052614

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