Journal
MECHANISMS OF PHOTOBIOMODULATION THERAPY XIV
Volume 10861, Issue -, Pages -Publisher
SPIE-INT SOC OPTICAL ENGINEERING
DOI: 10.1117/12.2506435
Keywords
photobiomodulation therapy; low-level light therapy; 980nm; dosimetry; spinal cord injury; transcutaneous
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The clinical prospect of treating spinal cord injury by photobiomodulation therapy (PBMT) is unclear as the spinal dosimetry of transcutaneous laser application is unknown, yet essential for clinical recommendations. Light irradiances at 9 sites over an 8cm length along the thoracic to lumbar segment of the spinal canal were measured in 6 cadaver dogs using a flexible intra-spinal probe, under a surface irradiance of 3.14W/cm(2). The skin transmits 4-12% of 980nm PBMT light. On-contact technique is similar to 5 times more efficient than off-contact technique. Transcutaneous transmission of photobiomodulatory irradiance to the spinal canal will benefit from contact-probe technique and skin-clearing approaches.
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