Wearable monitoring of water content variation in peripheral edema

So Hyun Chung; Marco Renna; Maria-Angela Franceschini; Stefan A. Carp

doi:10.1117/12.3001723

13 March 2024 Wearable monitoring of water content variation in peripheral edema

So Hyun Chung, Marco Renna, Maria-Angela Franceschini, Stefan A. Carp

Proceedings Volume PC12838, Biophotonics in Exercise Science, Sports Medicine, Health Monitoring Technologies, and Wearables V; PC1283802 (2024) https://doi.org/10.1117/12.3001723
Event: SPIE BiOS, 2024, San Francisco, California, United States

Abstract

Peripheral edema, also known as leg swelling, is observed frequently because of various causes such as sitting or standing for a long time, inflammation, injury or diseases in venous circulation system, lymphatic system, kidney and heart. It is also a side effect of chemotherapy or hormonal therapy. But to our knowledge, there is no wearable optical monitor that can quantify changes in the tissue water content related to edema. We have conducted simulations on the minimal number of light source-detector pairs and the wavelengths of the sources that can measure changes in the water fraction in superficial tissues within a compact form factor wearable optical sensor using continuous wave near-infrared spectroscopy (CW NIRS). The wavelength range we have investigated is from 800 to 1100 nm. We will present the results of simulations under various device configurations.

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So Hyun Chung, Marco Renna, Maria-Angela Franceschini, and Stefan A. Carp "Wearable monitoring of water content variation in peripheral edema", Proc. SPIE PC12838, Biophotonics in Exercise Science, Sports Medicine, Health Monitoring Technologies, and Wearables V, PC1283802 (13 March 2024); https://doi.org/10.1117/12.3001723

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KEYWORDS

Water content

Near infrared spectroscopy

Continuous wave operation

Lymphatic system

Prototyping

Simulations

Tissues

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