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Journal of Biomedical Optics

Femtosecond laser ablation of the stapes
Author(s): Ryan G. McCaughey; Hui Sun; Vanessa S. Rothholtz; Tibor Juhasz; Brian Jet-Fei Wong
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Paper Abstract

A femtosecond laser, normally used for LASIK eye surgery, is used to perforate cadaveric human stapes. The thermal side effects of bone ablation are measured with a thermocouple in an inner ear model and are found to be within acceptable limits for inner ear surgery. Stress and acoustic events, recorded with piezoelectric film and a microphone, respectively, are found to be negligible. Optical microscopy, scanning electron microscopy, and optical coherence tomography are used to confirm the precision of the ablation craters and lack of damage to the surrounding tissue. Ablation is compared to that from an Er:YAG laser, the current laser of choice for stapedotomy, and is found to be superior. Ultra-short-pulsed lasers offer a precise and efficient ablation of the stapes, with minimal thermal and negligible mechanical and acoustic damage. They are, therefore, ideal for stapedotomy operations.

Paper Details

Date Published: 1 March 2009
PDF: 6 pages
J. Biomed. Opt. 14(2) 024040 doi: 10.1117/1.3120490
Published in: Journal of Biomedical Optics Volume 14, Issue 2
Show Author Affiliations
Ryan G. McCaughey, Univ. of California, Irvine (United States)
Hui Sun, Univ. of California, Irvine (United States)
Vanessa S. Rothholtz, Irvine Medical Ctr. (United States)
Tibor Juhasz, Advanced Medical Optics, Inc. (United States)
Brian Jet-Fei Wong, Univ. of California, Irvine (United States)

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