Use of CO2 Flexible Fiber Laser in Lyses of Middle Ear Adhesions

CSurgeries ◽  
2018 ◽  
Author(s):  
Charles Poff
Keyword(s):  
Fiber Laser ◽  
Middle Ear ◽  
Flexible Fiber

scholarly journals Flexible fiber-laser ultrasound sensor for multiscale photoacoustic imaging

2021 ◽  
Vol 4 (8) ◽  
pp. 200081-200081
Author(s):  
Bai-Ou Guan ◽  
◽  
Long Jin ◽  
Jun Ma ◽  
Yizhi Liang ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Photoacoustic Imaging ◽  
Laser Ultrasound ◽  
Flexible Fiber ◽  
Ultrasound Sensor

scholarly journals Improvement in resolution of fiber-laser photoacoustic tomography based on a virtual-point concept

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Xue Bai ◽  
Xu Li ◽  
Jun Ma ◽  
Bai-Ou Guan
Keyword(s):  
Fiber Laser ◽  
Image Resolution ◽  
Photoacoustic Tomography ◽  
Time Resolved ◽  
Tomography System ◽  
Flexible Fiber ◽  
Arc Shape ◽  
Virtual Point ◽  
Synthetic Aperture Focusing ◽  
Synthetic Aperture Focusing Technique

AbstractIn this study, a virtual-point concept was introduced into fiber-laser photoacoustic tomography to improve the elevational image resolution. The flexible fiber laser was bent into an arc shape to conform to the ultrasound wavefront, which formed an ultrasound focus at the center of the arc. The synthetic aperture focusing technique was utilized to reconstruct the images; as a result, the elevational resolution particularly within the out-of-focus region was considerably improved compared to the resolution of an image retrieved by multiplexing the PA time-resolved signals with sound velocity. The all-optical fiber-laser photoacoustic tomography system with a high spatial resolution has potential for various applications, including biomedical research and preclinical/clinical diagnosis.

The Effect of Stapedectomy on the Loudness of One’s Own Voice

1965 ◽  
Vol 8 (3) ◽  
pp. 223-234 ◽  
Author(s):  
William Melnick
Keyword(s):  
Middle Ear ◽  
Normal Subjects ◽  
Sound Energy ◽  
Loudness Function ◽  
Before And After ◽  
Increased Sensitivity

Five subjects with normal middle ear mechanisms, and otosclerotic patients, before and after stapedectomy, matched the loudness of their voices to the loudness of a 125-cps-sawtooth noise. The results showed loudness matching functions with gradual slopes, less than 1.00, for the normal subjects and the patients prior to stapedectomy. Post-surgically, the loudness function for the patients increased in steepness to considerably more than 1.00. These results are explained, most logically, in terms of increased sensitivity of the altered middle ear to sound energy generated by the listener’s own voice.

Are mucin genes yet to be cloned expressed by human middle ear mucosa?

1998 ◽  
Vol 23 (3) ◽  
pp. 265-265 ◽  
Author(s):  
Hutton ◽  
Birchall ◽  
French ◽  
Kubba ◽  
Severn ◽  
...  
Keyword(s):  
Middle Ear ◽  
Middle Ear Mucosa ◽  
Mucin Genes ◽  
Human Middle Ear

The effect of anaesthetic agents on tympanometry and middle ear effusions

1998 ◽  
Vol 23 (3) ◽  
pp. 265-265
Author(s):  
Fish ◽  
Banerjee ◽  
Jennings ◽  
Narula
Keyword(s):  
Middle Ear ◽  
Anaesthetic Agents
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