Zobrazeno 1 - 10
of 183
pro vyhledávání: '"J, Pitre"'
Autor:
Mitchell A. Kirby, PhD, Ivan Pelivanov, PhD, Gabriel Regnault, PhD, John J. Pitre, PhD, Ryan T. Wallace, PhD, Matthew O’Donnell, PhD, Ruikang K. Wang, PhD, Tueng T. Shen, PhD, MD
Publikováno v:
Ophthalmology Science, Vol 3, Iss 2, Pp 100257- (2023)
Purpose: To evaluate changes in the anisotropic elastic properties of ex vivo human cornea treated with ultraviolet cross-linking (CXL) using noncontact acoustic micro-tapping optical coherence elastography (AμT-OCE). Design: Acoustic micro-tapping
Externí odkaz:
https://doaj.org/article/dc1a35e278014152b6af75ac634532c0
Autor:
Mitchell A. Kirby, Peijun Tang, Hong-Cin Liou, Maju Kuriakose, John J. Pitre, Tam N. Pham, Russell E. Ettinger, Ruikang K. Wang, Matthew O’Donnell, Ivan Pelivanov
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-17 (2022)
Abstract Skin broadly protects the human body from undesired factors such as ultraviolet radiation and abrasion and helps conserve body temperature and hydration. Skin’s elasticity and its level of anisotropy are key to its aesthetics and function.
Externí odkaz:
https://doaj.org/article/e3354f6bd2ea4da7b6b1fb4c92ed5e65
Autor:
Geng-Shi Jeng, Meng-Lin Li, MinWoo Kim, Soon Joon Yoon, John J. Pitre, David S. Li, Ivan Pelivanov, Matthew O’Donnell
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-12 (2021)
Spectroscopic photoacoustic imaging has been limited by wavelength-dependent fluence variations and tissue motion. Here, the authors achieve real-time fluence and motion correction in vivo by using a wavelength-tunable laser, sequential scan of a nar
Externí odkaz:
https://doaj.org/article/8269cdc25c00487f809f0633b510b90d
Autor:
John J. Pitre, Mitchell A. Kirby, David S. Li, Tueng T. Shen, Ruikang K. Wang, Matthew O’Donnell, Ivan Pelivanov
Publikováno v:
Scientific Reports, Vol 10, Iss 1, Pp 1-14 (2020)
Abstract The cornea provides the largest refractive power for the human visual system. Its stiffness, along with intraocular pressure (IOP), are linked to several pathologies, including keratoconus and glaucoma. Although mechanical tests can quantify
Externí odkaz:
https://doaj.org/article/1a40301052aa4ca193d2e433e87d4622
Autor:
Mitchell A. Kirby, PhD, John J. Pitre, Jr., PhD, Hong-Cin Liou, PhD, David S. Li, PhD, Ruikang K. Wang, PhD, Ivan Pelivanov, PhD, Matthew O’Donnell, PhD, Tueng T. Shen, MD, PhD
Publikováno v:
Ophthalmology Science, Vol 1, Iss 4, Pp 100058- (2021)
Purpose: To compare noncontact acoustic microtapping (AμT) OCT elastography (OCE) with destructive mechanical tests to confirm corneal elastic anisotropy. Design: Ex vivo laboratory study with noncontact AμT-OCE followed by mechanical rheometry and
Externí odkaz:
https://doaj.org/article/305b9771e6b1431788b6cef171f39127
Publikováno v:
Photoacoustics, Vol 20, Iss , Pp 100202- (2020)
Sono-photoacoustic (SPA) activation lowers the threshold of phase-change contrast agents by timing a laser shot to coincide with the arrival of an acoustic wave at a region of interest. The combination of photothermal heating from optical absorption
Externí odkaz:
https://doaj.org/article/ab338c1e76244ce089671da2b9a32428
Autor:
James M. Riopelle, Valeriy V. Kozmenko, Melville Q. Wyche, Marion L. Yapuncich, Eddie J. Pitre
Publikováno v:
Ochsner Journal.
Autor:
Matthew O'Donnell, Ivan Pelivanov, Tueng T. Shen, Ruikang K. Wang, John J. Pitre, David S. Li, Mitchell A. Kirby
Publikováno v:
Scientific Reports, Vol 10, Iss 1, Pp 1-14 (2020)
Scientific Reports
Scientific Reports
The cornea provides the largest refractive power for the human visual system. Its stiffness, along with intraocular pressure (IOP), are linked to several pathologies, including keratoconus and glaucoma. Although mechanical tests can quantify corneal
Autor:
Ryan Canfield, Aleksandra Ziaja-Sujdak, John J. Pitre, Matthew O’Donnell, Lukasz Ambrozinski, Ivan Pelivanov
Publikováno v:
Journal of Applied Physics. 132:235103
Material elastic moduli are used to assess stiffness, elastic response, strength, and residual life. Ultrasound (US) measurements of propagation wave speeds (for longitudinal and shear waves) are now primary tools for non-destructive evaluation (NDE)
Autor:
Hong-Cin Liou, Tueng T. Shen, Ivan Pelivanov, Mitchell A. Kirby, David S. Li, Ruikang K. Wang, John J. Pitre, Matthew O'Donnell
Publikováno v:
Ophthalmology Science, Vol 1, Iss 4, Pp 100058-(2021)
Purpose To compare noncontact acoustic microtapping (AμT) OCT elastography (OCE) with destructive mechanical tests to confirm corneal elastic anisotropy. Design Ex vivo laboratory study with noncontact AμT-OCE followed by mechanical rheometry and e