Laser biostimulation therapy planning supported by imaging

Adam R. Mester

doi:10.1117/12.2309566

12 April 2018 Laser biostimulation therapy planning supported by imaging

Adam R. Mester

Proceedings Volume 10582, Laser Florence 2017: Advances in Laser Medicine; 1058203 (2018) https://doi.org/10.1117/12.2309566
Event: Laser Florence 2017, 2017, Florence, Italy

Abstract

Ultrasonography and MR imaging can help to identify the area and depth of different lesions, like injury, overuse, inflammation, degenerative diseases. The appropriate power density, sufficient dose and direction of the laser treatment can be optimally estimated. If required minimum 5 mW photon density and required optimal energy dose: 2-4 Joule/cm² wouldn’t arrive into the depth of the target volume - additional techniques can help: slight compression of soft tissues can decrease the tissue thickness or multiple laser diodes can be used. In case of multiple diode clusters light scattering results deeper penetration. Another method to increase the penetration depth is a second pulsation (in kHz range) of laser light. (So called continuous wave laser itself has inherent THz pulsation by temporal coherence). Third solution of higher light intensity in the target volume is the multi-gate technique: from different angles the same joint can be reached based on imaging findings. Recent developments is ultrasonography: elastosonography and tissue harmonic imaging with contrast material offer optimal therapy planning. While MRI is too expensive modality for laser planning images can be optimally used if a diagnostic MRI already was done. Usual DICOM images offer “postprocessing” measurements in mm range.

Citation Download Citation

Adam R. Mester "Laser biostimulation therapy planning supported by imaging", Proc. SPIE 10582, Laser Florence 2017: Advances in Laser Medicine, 1058203 (12 April 2018); https://doi.org/10.1117/12.2309566

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KEYWORDS

Laser therapeutics

Tissues

Magnetic resonance imaging

Absorption

Biological research

Inflammation

Arthritis

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