Evidence map›Paper›PMID 28618301›Full record

ArticleUltrasonics2017

Noninvasive measurement of wave speed of porcine cornea in ex vivo porcine eyes for various intraocular pressures.

Boran Zhou, Arthur J Sit, Xiaoming Zhang

Abstract read
In one paragraph

Article in Ultrasonics, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 1 pooled it
7.1field-weighted citation impact, top 2% 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

26 citing papers in PubMed, 1 synthesis or guideline pooled it, 55 citations in OpenAlex.

  1. Pooled it
  2. Evaluation of the iFalconBMC veterinary research · 2026
    Article
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  5. Review
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  19. Ultrasonic Microelastography to Assess Biomechanical Properties of the Cornea.IEEE transactions on bio-medical engineering · 2019
    Article
  20. Article
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

3 authors at 2 institutions in 1 country.

Boran ZhouDepartment of Radiology, Mayo Clinic, USA.
Arthur J SitDepartment of Ophthalmology, Mayo Clinic, USA.
Xiaoming ZhangDepartment of Radiology, Mayo Clinic, USA; Department of Biomedical Engineering and Physiology, Mayo Clinic, USA. Electronic address: Zhang.xiaoming@mayo.edu.
Mayo Clinic in Arizona · USMayo Clinic in Florida · US

Funding

A Novel Method for Non-Invasive In Vivo Measurement of Ocular Biomechanical Properties and Clinical Significance in GlaucomaR21EY026095 · NEI · MAYO CLINIC ROCHESTER · PI SIT, ARTHUR J, ZHANG, XIAOMING · 2016 to 2017
$428k
NEI NIH HHS R21 EY026095
6 · The paper itself

Abstract

The objective of this study was to extend an ultrasound surface wave elastography (USWE) technique for noninvasive measurement of ocular tissue elastic properties. In particular, we aim to establish the relationship between the wave speed of cornea and the intraocular pressure (IOP). Normal ranges of IOP are between 12 and 22mmHg. Ex vivo porcine eye balls were used in this research. The porcine eye ball was supported by the gelatin phantom in a testing container. Some water was pour into the container for the ultrasound measurement. A local harmonic vibration was generated on the side of the eye ball. An ultrasound probe was used to measure the wave propagation in the cornea noninvasively. A 25 gauge butterfly needle was inserted into the vitreous humor of the eye ball under the ultrasound imaging guidance. The needle was connected to a syringe. The IOP was obtained by the water height difference between the water level in the syringe and the water level in the testing container. The IOP was adjusted between 5mmHg and 30mmHg with a 5mmHg interval. The wave speed was measured at each IOP for three frequencies of 100, 150 and 200Hz. Finite element method (FEM) was used to simulate the wave propagation in the corneal according to our experimental setup. A linear viscoelastic FEM model was used to compare the experimental data. Both the experiments and the FEM analyses showed that the wave speed of cornea increased with IOP.

Indexed as

Intraocular PressureAnimalsBiomechanical PhenomenaCorneaElasticityElasticity Imaging TechniquesEquipment DesignFinite Element AnalysisIn Vitro TechniquesPhantoms, ImagingSwineVibrationCorneaIntraocular pressureSurface wave elastographyUltrasoundWave speed

Identifiers

PMID28618301
PMCPMC5541902
OpenAlexW2621446403

What OpenQuestion holds

Textmetadata
LicenceTDM
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.