Laser-tissue Interaction Principles

Laser-tissue interaction principles: tissue optical properties in the light therapeutic window

Energy for Health, Volume 12

G. Romano, A. Conti, A. Gnerucci, P. Imperiale, F. Fusi

Study Objective:

This article presents a review of the physical principles of light-tissue interaction and combines experimental data on tissue chromophore scattering and absorption.

Conclusion:

Scattering and absorption are directly tied to the wavelength of the laser. Scattering can be caused by cell nuclei, mitochondria, lysosomes, and the Golgi apparatus; generally as the wavelength increases, the scattering decreases (see chart). Absorption happens when the laser hits blood, water, melanin, muscle, and/or mucous membrane. The higher the level of melanin in the skin (darker skin types) the more the laser will be absorbed at the skin. Laser that is coherent will have the least amount of scattering and the most absorption within the body. (MLS is coherent and utilizes 808nm and 905nm wavelength).

NIR Laser Photobiomodulation Induces Neuroprotection in an Vitro Model of Cerebral Hypoxia/Ischemia

The aim of the present research was to identify a treatment protocol capable of inducing neuroprotection
and to investigate the molecular mechanisms activated by a dual-wavelength near infrared (NIR) laser source in an organotypic hippocampal slice model of hypoxia/ischemia.

The Benefit of Using Low Power Laser in the Treatment of Various Illnesses – an overview

The aim of the article is to give an overview of the interesting field of Low Level Laser Therapy. Applications like the treatment of inflammatory processes, acute myocardial infarction, acute ischemic stroke and others are possible but still rarely used in clinical routine. This paper summarizes the most important applications and mechanisms underlying the effects of low level laser.

Rachel, Treatment of Multiple Pelvic Fractures

Rachel, had multiple pelvic fractures after being struck by a car. MLS Laser Therapy was used to assist in the healing process.

Laser-tissue Interaction Principles