Evidence map›Paper›PMID 31585965›Full record

ArticleThe British journal of ophthalmology2020

Comparison of a commercial spectral-domain OCT and swept-source OCT based on an angiography scan for measuring circumpapillary retinal nerve fibre layer thickness.

Bingyao Tan, Jacqueline Chua, Thiyagrajan Harish, Amanda Lau, Alfred Tau Liang Gan, Yar Li Tan, Damon W K Wong, Rachel Shujuan Chong, Marcus Ang, Rahat Husain and 1 more

Open access · hybridAbstract readComparative Study
In one paragraph

Article in The British journal of ophthalmology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
1.1field-weighted citation impact, top 24% 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

10 citing papers in PubMed, 17 citations in OpenAlex.

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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

11 authors at 3 institutions in 4 countries.

Bingyao TanSingapore Eye Research Institute, Singapore National Eye Centre, Singapore.
Jacqueline ChuaSingapore Eye Research Institute, Singapore National Eye Centre, Singapore.ORCID 0000-0002-6474-5293
Thiyagrajan HarishSingapore Eye Research Institute, Singapore National Eye Centre, Singapore.
Amanda LauSingapore Eye Research Institute, Singapore National Eye Centre, Singapore.
Alfred Tau Liang GanSingapore Eye Research Institute, Singapore National Eye Centre, Singapore.
Yar Li TanSingapore Eye Research Institute, Singapore National Eye Centre, Singapore.
Damon W K WongSERI-NTU Advanced Ocular Engineering (STANCE) program, Singapore.
Rachel Shujuan ChongSingapore Eye Research Institute, Singapore National Eye Centre, Singapore.
Marcus AngSingapore Eye Research Institute, Singapore National Eye Centre, Singapore.
Rahat HusainSingapore Eye Research Institute, Singapore National Eye Centre, Singapore.
Leopold SchmettererSingapore Eye Research Institute, Singapore National Eye Centre, Singapore leopold.schmetterer@seri.com.sg.ORCID 0000-0002-7189-1707
Singapore National Eye Center · SGNanyang Technological University · SGNational University of Singapore · SG

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND/

aimsTo assess the agreement in measuring retinal nerve fibre layer (RNFL) thickness between spectral-domain (SD; Cirrus HD, Carl Zeiss Meditec, USA) optical coherence tomography (OCT) and swept-source (SS; Plex Elite 9000, Carl Zeiss Meditec) OCT using an OCT angiography (OCTA) scanning protocol.

methods57 participants (12 glaucomatous, 8 ocular hypertensive and 74 normal eyes) were scanned with two OCT instruments by a single experienced operator on the same day. Circumpapillary RNFL thicknesses were automatically segmented for SD-OCT and manually segmented for SS-OCTA scans. Agreement of global RNFL thickness, as well as average thickness in four quadrants was assessed using intraclass correlation coefficients (ICCs).

resultsThere was excellent agreement in the inferior and superior quadrants and the global (all ICC >0.90), followed by good agreement in the temporal (ICC=0.79) and nasal (ICC=0.73) quadrants. The ICC values were similar in the subgroups except within the ocular hypertension group, where the nasal quadrant was less agreeable (ICC=0.31). SS-OCTA-derived RNFL thickness was on average 3 µm thicker than SD-OCT, particularly in the nasal (69.7±11.5 µm vs 66.3±9.3 µm; p<0.001) and temporal (75.6±13.7 µm vs 67.9±12.3 µm; p<0.001) quadrants.

conclusionsRNFL measurements taken with SS-OCTA have good-to-excellent agreement with SD-OCT, which suggests that the RNFL thickness can be sufficiently extracted from wide-field OCTA scans.

Indexed as

AgedAged, 80 and overCross-Sectional StudiesFemaleFluorescein AngiographyGlaucoma, Open-AngleHumansMaleMiddle AgedNerve FibersOcular HypertensionOptic DiskRetinal Ganglion CellsTomography, Optical CoherenceVisual Fieldsimagingretina

Identifiers

PMID31585965
PMCPMC7361033
OpenAlexW2978266242

What OpenQuestion holds

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LicenceCC BY-NC
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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.