Literature DB >> 24877005

Spatial characterization of corneal biomechanical properties with optical coherence elastography after UV cross-linking.

Michael D Twa1, Jiasong Li2, Srilatha Vantipalli3, Manmohan Singh2, Salavat Aglyamov4, Stanislav Emelianov4, Kirill V Larin5.   

Abstract

Corneal collagen cross-linking (CXL) is a clinical treatment for keratoconus that structurally reinforces degenerating ocular tissue, thereby limiting disease progression. Clinical outcomes would benefit from noninvasive methods to assess tissue material properties in affected individuals. Regional variations in tissue properties were quantified before and after CXL in rabbit eyes using optical coherence elastography (OCE) imaging. Low-amplitude (<1µm) elastic waves were generated using micro air-pulse stimulation and the resulting wave amplitude and speed were measured using phase-stabilized swept-source OCE. OCE imaging following CXL treatment demonstrates increased corneal stiffness through faster elastic wave propagation speeds and lower wave amplitudes.

Entities:  

Keywords:  (110.4500) Optical coherence tomography; (170.0170) Medical optics and biotechnology; (170.4580) Optical diagnostics for medicine; (170.6935) Tissue characterization

Year:  2014        PMID： 24877005      PMCID： PMC4026912          DOI： 10.1364/BOE.5.001419

Source DB:  PubMed          Journal:  Biomed Opt Express        ISSN： 2156-7085            Impact factor:   3.732


  28 in total

1.  Diffusion-weighted MRI versus transient elastography in quantification of liver fibrosis in patients with chronic cholestatic liver diseases.

Authors:  Jelena Djokić Kovač; Marko Daković; Dejana Stanisavljević; Tamara Alempijević; Rada Ješić; Petar Seferović; Ružica Maksimović
Journal:  Eur J Radiol       Date:  2011-11-17       Impact factor: 3.528

2.  Assessment of corneal dynamics with high-speed swept source optical coherence tomography combined with an air puff system.

Authors:  David Alonso-Caneiro; Karol Karnowski; Bartlomiej J Kaluzny; Andrzej Kowalczyk; Maciej Wojtkowski
Journal:  Opt Express       Date:  2011-07-18       Impact factor: 3.894

3.  AN OVERVIEW OF ELASTOGRAPHY - AN EMERGING BRANCH OF MEDICAL IMAGING.

Authors:  Armen Sarvazyan; Timothy J Hall; Matthew W Urban; Mostafa Fatemi; Salavat R Aglyamov; Brian S Garra
Journal:  Curr Med Imaging Rev       Date:  2011-11

4.  Dynamic optical coherence tomography measurements of elastic wave propagation in tissue-mimicking phantoms and mouse cornea in vivo.

Authors:  Jiasong Li; Shang Wang; Ravi Kiran Manapuram; Manmohan Singh; Floredes M Menodiado; Salavat Aglyamov; Stanislav Emelianov; Michael D Twa; Kirill V Larin
Journal:  J Biomed Opt       Date:  2013-12       Impact factor: 3.170

5.  In vivo dynamic optical coherence elastography using a ring actuator.

Authors:  Brendan F Kennedy; Timothy R Hillman; Robert A McLaughlin; Bryden C Quirk; David D Sampson
Journal:  Opt Express       Date:  2009-11-23       Impact factor: 3.894

6.  An ultrasonic technique for the measurement of the elastic moduli of human cornea.

Authors:  H Wang; P L Prendiville; P J McDonnell; W V Chang
Journal:  J Biomech       Date:  1996-12       Impact factor: 2.712

7.  Short-term corneal response to cross-linking in rabbit eyes assessed by in vivo confocal laser scanning microscopy and histology.

Authors:  Marine Hovakimyan; Rudolf Guthoff; Steffi Knappe; Andrey Zhivov; Andreas Wree; Alexander Krüger; Alexander Heisterkamp; Oliver Stachs
Journal:  Cornea       Date:  2011-02       Impact factor: 2.651

8.  In vivo biomechanical changes after corneal collagen cross-linking for keratoconus and corneal ectasia: 1-year analysis of a randomized, controlled, clinical trial.

Authors:  Steven A Greenstein; Kristen L Fry; Peter S Hersh
Journal:  Cornea       Date:  2012-01       Impact factor: 2.651

9.  Stress-strain measurements of human and porcine corneas after riboflavin-ultraviolet-A-induced cross-linking.

Authors:  Gregor Wollensak; Eberhard Spoerl; Theo Seiler
Journal:  J Cataract Refract Surg       Date:  2003-09       Impact factor: 3.351

10.  Feasibility of optical coherence elastography measurements of shear wave propagation in homogeneous tissue equivalent phantoms.

Authors:  Marjan Razani; Adrian Mariampillai; Cuiru Sun; Timothy W H Luk; Victor X D Yang; Michael C Kolios
Journal:  Biomed Opt Express       Date:  2012-04-16       Impact factor: 3.732
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  25 in total

1.  Assessing the effects of riboflavin/UV-A crosslinking on porcine corneal mechanical anisotropy with optical coherence elastography.

Authors:  Manmohan Singh; Jiasong Li; Zhaolong Han; Raksha Raghunathan; Achuth Nair; Chen Wu; Chih-Hao Liu; Salavat Aglyamov; Michael D Twa; Kirill V Larin
Journal:  Biomed Opt Express       Date:  2016-12-19       Impact factor: 3.732

2.  Ultra-fast line-field low coherence holographic elastography using spatial phase shifting.

Authors:  Chih-Hao Liu; Alexander Schill; Raksha Raghunathan; Chen Wu; Manmohan Singh; Zhaolong Han; Achuth Nair; Kirill V Larin
Journal:  Biomed Opt Express       Date:  2017-01-23       Impact factor: 3.732

Review 3.  Optical coherence elastography - OCT at work in tissue biomechanics [Invited].

Authors:  Kirill V Larin; David D Sampson
Journal:  Biomed Opt Express       Date:  2017-01-27       Impact factor: 3.732

4.  Applanation optical coherence elastography: noncontact measurement of intraocular pressure, corneal biomechanical properties, and corneal geometry with a single instrument.

Authors:  Manmohan Singh; Zhaolong Han; Achuth Nair; Alexander Schill; Michael D Twa; Kirill V Larin
Journal:  J Biomed Opt       Date:  2017-02-01       Impact factor: 3.170

5.  Optical coherence elastography for evaluating customized riboflavin/UV-A corneal collagen crosslinking.

Authors:  Manmohan Singh; Jiasong Li; Srilatha Vantipalli; Zhaolong Han; Kirill V Larin; Michael D Twa
Journal:  J Biomed Opt       Date:  2017-09-01       Impact factor: 3.170

6.  The dynamic deformation of a layered viscoelastic medium under surface excitation.

Authors:  Salavat R Aglyamov; Shang Wang; Andrei B Karpiouk; Jiasong Li; Michael Twa; Stanislav Y Emelianov; Kirill V Larin
Journal:  Phys Med Biol       Date:  2015-05-14       Impact factor: 3.609

7.  Differentiating untreated and cross-linked porcine corneas of the same measured stiffness with optical coherence elastography.

Authors:  Jiasong Li; Zhaolong Han; Manmohan Singh; Michael D Twa; Kirill V Larin
Journal:  J Biomed Opt       Date:  2014-11       Impact factor: 3.170

8.  Common-path phase-sensitive optical coherence tomography provides enhanced phase stability and detection sensitivity for dynamic elastography.

Authors:  Gongpu Lan; Manmohan Singh; Kirill V Larin; Michael D Twa
Journal:  Biomed Opt Express       Date:  2017-10-26       Impact factor: 3.732

9.  Ultrahigh-Resolution Optical Coherence Elastography Images Cellular-Scale Stiffness of Mouse Aorta.

Authors:  Philip Wijesinghe; Niloufer J Johansen; Andrea Curatolo; David D Sampson; Ruth Ganss; Brendan F Kennedy
Journal:  Biophys J       Date:  2017-12-05       Impact factor: 4.033

10.  Investigating Elastic Anisotropy of the Porcine Cornea as a Function of Intraocular Pressure With Optical Coherence Elastography.

Authors:  Manmohan Singh; Jiasong Li; Zhaolong Han; Chen Wu; Salavat R Aglyamov; Michael D Twa; Kirill V Larin
Journal:  J Refract Surg       Date:  2016-08-01       Impact factor: 3.573
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