Evidence map›Paper›PMID 32367285›Full record

ArticleGraefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie2020

Repeatability and reproducibility of vessel density measurements on optical coherence tomography angiography in diabetic retinopathy.

Emily S Levine, Malvika Arya, Juhi Chaudhari, Eugenia Custo Greig, A Yasin Alibhai, Caroline R Baumal, Andre J Witkin, Jay S Duker, Nadia K Waheed

Abstract read
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In one paragraph

Article in Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
2.5field-weighted citation impact, top 10% 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

14 citing papers in PubMed, 1 synthesis or guideline pooled it, 25 citations in OpenAlex.

  1. Retinal microvascular alterations in sickle cell disease: a systematic review and meta-analysis of OCTA findings based on genotype and stages of retinopathy.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2026
    Pooled it
  2. Article
  3. Observational
  4. Review
  5. Article
  6. Optical coherence tomography angiography in diabetic retinopathy.Progress in retinal and eye research · 2023
    Review
  7. Review
  8. Article
  9. Article
  10. Article
  11. Review
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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

9 authors at 2 institutions in 1 country.

Emily S LevineNew England Eye Center, Tufts Medical Center, Boston, MA, USA.
Malvika AryaNew England Eye Center, Tufts Medical Center, Boston, MA, USA.
Juhi ChaudhariNew England Eye Center, Tufts Medical Center, Boston, MA, USA.
Eugenia Custo GreigNew England Eye Center, Tufts Medical Center, Boston, MA, USA.
A Yasin AlibhaiNew England Eye Center, Tufts Medical Center, Boston, MA, USA.
Caroline R BaumalNew England Eye Center, Tufts Medical Center, Boston, MA, USA.
Andre J WitkinNew England Eye Center, Tufts Medical Center, Boston, MA, USA.
Jay S DukerNew England Eye Center, Tufts Medical Center, Boston, MA, USA.
Nadia K WaheedNew England Eye Center, Tufts Medical Center, Boston, MA, USA. nwaheed@tuftsmedicalcenter.org.ORCID http://orcid.org/0000-0002-8229-7519
Tufts Medical Center · USTufts University · US

Funding

Massachusetts Lions Eye Research Fund n/aResearch to Prevent Blindness n/a
6 · The paper itself

Abstract

purposeUnderstanding the precision of measurements on and across optical coherence tomography angiography (OCTA) devices is critical for tracking meaningful change in disease. The purpose of this study is to investigate the repeatability and reproducibility of vessel area density and vessel skeleton density measurements from various commercial OCTA devices in diabetic eyes.

methodsPatients were imaged three consecutive times each on three different OCTA devices. En face OCTA images of the superficial capillary plexus, deep capillary plexus, and full retinal layer were exported for analysis. Vessel area density and vessel skeleton density were calculated. The coefficient of repeatability (CoR) was calculated to assess the repeatability of these measurements, and linear mixed models were utilized to assess the reproducibility of these measurements.

resultsForty-four eyes from 27 diabetic patients were imaged. Normalized CoR values ranged between 3.44 and 6.65% when calculated for vessel area density and between 1.35 and 23.39% when calculated for vessel skeleton density. When stratified by disease severity, the swept-source OCTA device consistently produced the smallest CoR values for vessel area density in the full retinal layer. Vessel area density measurements were repeatable across the two spectral-domain devices in the full retinal layer when all severities were combined, as well as in diabetic patients without retinopathy, mild nonproliferative diabetic retinopathy (NPDR), and moderate NPDR.

conclusionVessel area density measured in the full retinal layer may be a more precise measure than vessel skeleton density to follow diabetic retinopathy patients both on the same device and across devices.

Indexed as

AdultAgedCross-Sectional StudiesDiabetic RetinopathyFemaleFluorescein AngiographyFollow-Up StudiesFundus OculiHumansMaleMiddle AgedProspective StudiesReproducibility of ResultsRetinal VesselsTomography, Optical CoherenceDiabetic retinopathyImagingOCTAOptical coherence tomography angiographyRetina

Identifiers

PMID32367285
OpenAlexW3023367080

What OpenQuestion holds

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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.