Evidence map›Paper›PMID 32509440›Full record

ArticleTranslational vision science & technology2020

Ocular Pulse Elastography: Imaging Corneal Biomechanical Responses to Simulated Ocular Pulse Using Ultrasound.

Keyton Clayson, Elias Pavlatos, Xueliang Pan, Thomas Sandwisch, Yanhui Ma, Jun Liu

Open access · goldAbstract read
In one paragraph

Article in Translational vision science & technology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
2.3field-weighted citation impact, top 9% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

16 citing papers in PubMed, 23 citations in OpenAlex.

  1. Article
  2. Biomechanical Correlations Between the Cornea and the Optic Nerve Head.Investigative ophthalmology & visual science · 2024
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 1 institution in 1 country.

Keyton ClaysonDepartment of Biomedical Engineering, The Ohio State University, Columbus, OH, USA.
Elias PavlatosDepartment of Biomedical Engineering, The Ohio State University, Columbus, OH, USA.
Xueliang PanDepartment of Biomedical Informatics, The Ohio State University, Columbus, OH, USA.
Thomas SandwischDepartment of Biomedical Engineering, The Ohio State University, Columbus, OH, USA.
Yanhui MaDepartment of Biomedical Engineering, The Ohio State University, Columbus, OH, USA.
Jun LiuDepartment of Biomedical Engineering, The Ohio State University, Columbus, OH, USA.
The Ohio State University · US

Funding

Ocular Pulse ElastographyR01EY025358 · NEI · OHIO STATE UNIVERSITY · PI LIU, JUN · 2016 to 2020
$2.0M
NEI NIH HHS R01 EY025358
6 · The paper itself

Abstract

Purpose: In vivo evaluation of corneal biomechanics holds the potential for improving diagnosis and management of ocular diseases. We aimed to develop an ocular pulse elastography (OPE) technique to quantify corneal strains generated by naturally occurring pulsations of the intraocular pressure (IOP) using high-frequency ultrasound. Methods: Simulated ocular pulses were induced in whole porcine and human donor globes to investigate the effects of physiologic variations in baseline IOP, ocular pulse amplitude, and frequency on corneal strains. Ocular pulse-induced strains were measured in additional globes before and after UVA-riboflavin-induced corneal crosslinking. The central cornea in each eye was imaged with a 50-MHz ultrasound imaging system and correlation-based speckle tracking of radiofrequency data was used to calculate tissue displacements and strains. Results: Ocular pulse-induced corneal strains followed the cyclic changes of IOP. Both baseline IOP and ocular pulse amplitude had a significant influence on strain magnitude. Variations in pulse frequency within the normal human heart rate range did not introduce detectable changes in corneal strains. A significant decrease of corneal strain, as quantified by the OPE technique, was observed after corneal crosslinking. The extent of corneal stiffening (i.e., strain reduction) seemed to correlate with the initial strain magnitude. Conclusions: This ex vivo study demonstrated the feasibility of the OPE method to quantify corneal strains generated by IOP pulsation and detect changes associated with corneal crosslinking treatment. Translational Relevance: Integrating in vivo measurement of IOP and ocular pulse amplitude, the OPE method may lead to a new clinical tool for safe and quick biomechanical evaluations of the cornea.

Indexed as

Elasticity Imaging TechniquesAnimalsCorneaHeart RateHumansSwineTonometry, OcularUltrasonographycorneal biomechanical propertiescorneal crosslinkinghigh frequency ultrasound elastographyintraocular pressureocular pulse

Identifiers

PMID32509440
PMCPMC7255625
OpenAlexW3003756889

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.