Acoustical measurements during Erbium:YAG laser ablation of porcine calcified tissues

Randall R. Saaf; Brian Jet-Fei Wong M.D.; Thomas E. Milner; George M. Peavy D.V.M.; Bahman Anvari

doi:10.1117/12.312294

1 July 1998 Acoustical measurements during Erbium:YAG laser ablation of porcine calcified tissues

Randall R. Saaf, Brian Jet-Fei Wong M.D., Thomas E. Milner, George M. Peavy D.V.M., Bahman Anvari

Proceedings Volume 3245, Lasers in Surgery: Advanced Characterization, Therapeutics, and Systems VIII; (1998) https://doi.org/10.1117/12.312294
Event: BiOS '98 International Biomedical Optics Symposium, 1998, San Jose, CA, United States

Abstract

The Erbium:YAG laser ((lambda) equals 2.94 micrometer) has been suggested for use in dental, orthopedic, and middle ear surgery due to decreased thermal trauma, precise ablation characteristics, and potential fiber optic delivery. While there has been much focus on the thermal and photoacoustic events that occur during pulsed laser ablation of hard tissue, there are few studies that examine the acoustic energy generated by these devices during ablation from an audiologic standpoint. In this study, the porcine otic capsule, nasal bone, and teeth were irradiated with an Erbium:YAG laser. Frequencies of 5 and 10 Hz shot repetition rate were used with .5 to 4 W average power. Additionally, a burst mode consisting of three pulses was used with .2 to 1.4 J total energy. During ablation, acoustic measurements were made using a sound level meter held 20 mm away from the target site. A constant spot size of 500 micrometer was maintained for each laser blast. With each set of laser parameters, the sound intensity (dB SPL) exceeded 70 dB. Peak intensity measurements of 95 dB were measured. The clinical significance of these findings is discussed and the acoustical aspects of middle ear function and noise trauma are reviewed.

Citation Download Citation

Randall R. Saaf, Brian Jet-Fei Wong M.D., Thomas E. Milner, George M. Peavy D.V.M., and Bahman Anvari "Acoustical measurements during Erbium:YAG laser ablation of porcine calcified tissues", Proc. SPIE 3245, Lasers in Surgery: Advanced Characterization, Therapeutics, and Systems VIII, (1 July 1998); https://doi.org/10.1117/12.312294

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
8 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Tissues

Laser ablation

Bone

Laser dentistry

Teeth

Ear

Acoustics

Show All Keywords

Keywords/Phrases

Search In:

Publication Years