Evidence map›Paper›PMID 35647573›Full record

ArticleOphthalmology science2022

Nonperfusion Area and Other Vascular Metrics by Wider Field Swept-Source OCT Angiography as Biomarkers of Diabetic Retinopathy Severity.

Itika Garg, Chibuike Uwakwe, Rongrong Le, Edward S Lu, Ying Cui, Karen M Wai, Raviv Katz, Ying Zhu, Jade Y Moon, Chloe Y Li and 9 more

Open access · goldAbstract read
In one paragraph

Article in Ophthalmology science, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
8.0field-weighted citation impact, top 1% 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

32 citing papers in PubMed, 44 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Prognostic value of expanded-field OCT angiography in visual acuity outcomes for non-proliferative diabetic retinopathy.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2026
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  12. Observational
  13. Reduced retinal microvascular density in women with coronary microvascular dysfunction: A pilot study.American heart journal plus : cardiology research and practice · 2025
    Article
  14. Clinical and imaging characteristics associated with foveal neovascularization in proliferative diabetic retinopathy.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2025
    Observational
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  16. Review
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  20. Widefield swept-source optical coherence tomography angiography metrics associated with neovascular glaucoma in patients with proliferative diabetic retinopathy.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2024
    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

19 authors at 4 institutions in 2 countries.

Itika GargRetina Service, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA.
Chibuike UwakweRetina Service, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA.
Rongrong LeHarvard Retinal Imaging Lab, Boston, MA, USA.
Edward S LuRetina Service, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA.
Ying CuiHarvard Retinal Imaging Lab, Boston, MA, USA.
Karen M WaiRetina Service, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA.
Raviv KatzRetina Service, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA.
Ying ZhuHarvard Retinal Imaging Lab, Boston, MA, USA.
Jade Y MoonRetina Service, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA.
Chloe Y LiHarvard Retinal Imaging Lab, Boston, MA, USA.
Inês LaínsRetina Service, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA.
Dean EliottRetina Service, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA.
Tobias ElzeSchepens Eye Research Institute of Massachusetts Eye and Ear, Boston, MA, USA.
Leo A KimRetina Service, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA.
David M WuRetina Service, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA.
Joan W MillerRetina Service, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA.
Deeba HusainRetina Service, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA.
Demetrios G VavvasRetina Service, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA.
John B MillerRetina Service, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA.
Massachusetts Eye and Ear Infirmary · USCentral South University · CNGuangdong Academy of Medical Sciences · CNWenzhou Medical University · CN

Funding

VISION RESEARCHP30EY003790 · NEI · SCHEPENS EYE RESEARCH INSTITUTE · PI Patricia Ann D'Amore · 1985 to 2026
$25.5M
Metabolomics a Novel Tool for Investigating the Pathogenesis of Age-related Macular DegenerationR01EY030088 · NEI · MASSACHUSETTS EYE AND EAR INFIRMARY · PI Deeba Husain · 2020 to 2026
$3.5M
Necroptosis, neuroprotection and axonal regeneration in retina ganglion cell injuryR01EY025362 · NEI · MASSACHUSETTS EYE AND EAR INFIRMARY · PI VAVVAS, DEMETRIOS · 2015 to 2018
$1.5M
Necroptosis and Neuroprotection in AMDR21EY023079 · NEI · MASSACHUSETTS EYE AND EAR INFIRMARY · PI VAVVAS, DEMETRIOS · 2013 to 2014
$404k
4th Harvard Biennial International Ocular Regeneration Symposium: From Bench to BedsideR13EY031922 · NEI · MASSACHUSETTS EYE AND EAR INFIRMARY · PI VAVVAS, DEMETRIOS · 2020 to 2020
$24k
NEI NIH HHS P30 EY003790NEI NIH HHS R01 EY025362NEI NIH HHS R01 EY030088NEI NIH HHS R13 EY031922NEI NIH HHS R21 EY023079
6 · The paper itself

Abstract

Purpose: To study the wider field swept-source optical coherence tomography angiography (WF SS-OCTA) metrics, especially non-perfusion area (NPA), in the diagnosing and staging of DR. Design: Cross-sectional observational study (November 2018-September 2020). Participants: 473 eyes of 286 patients (69 eyes of 49 control patients and 404 eyes of 237 diabetic patients). Methods: We imaged using 6mm×6mm and 12mm×12mm angiograms on WF SS-OCTA. Images were analyzed using the ARI Network and FIJI ImageJ. Mixed effects multiple regression models and receiver operator characteristic analysis was used for statistical analyses. Main Outcome Measures: Quantitative metrics such as vessel density (VD); vessel skeletonized density (VSD); foveal avascular zone (FAZ) area, circularity, and perimeter; and NPA in DR and their relative performance for its diagnosis and grading. Results: Among patients with diabetes (median age 59 years), 51 eyes had no DR, 185 eyes (88 mild, 97 moderate-severe) had non-proliferative DR (NPDR); and 168 eyes had proliferative DR (PDR). Trend analysis revealed a progressive decline in superficial capillary plexus (SCP) VD and VSD, and increased NPA with increasing DR severity. Additionally, there was a significant reduction in deep capillary plexus (DCP) VD and VSD in early DR (mild NPDR), but the progressive reduction in advanced DR stages was not significant. NPA was the best parameter to diagnose DR (AUC:0.96), whereas all parameters combined on both angiograms efficiently diagnosed (AUC:0.97) and differentiated between DR stages (AUC range:0.83-0.97). The presence of diabetic macular edema was associated with reduced SCP and DCP VD and VSD within mild NPDR eyes, whereas an increased VD and VSD in SCP among moderate-severe NPDR group. Conclusions: Our work highlights the importance of NPA, which can be more readily and easily measured with WF SS-OCTA compared to fluorescein angiography. It is additionally quick and non-invasive, and hence can be an important adjunct for DR diagnosis and management. In our study, a combination of all OCTA metrics on both 6mm×6mm and 12mm×12mm angiograms had the best diagnostic accuracy for DR and its severity. Further longitudinal studies are needed to assess NPA as a biomarker for progression or regression of DR severity.

Indexed as

capillary dropoutdiabetic retinopathydiabetic retinopathy classificationdiabetic retinopathy gradingdiabetic retinopathy severity scaleischemia indexnon-perfusion areaOptical coherence tomography angiographyquantitative vascular metricsvessel densityvessel skeletonized densitywidefield swept source optical coherence tomography angiography

Identifiers

PMID35647573
PMCPMC9137369
OpenAlexW4220837792

What OpenQuestion holds

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LicenceCC BY-NC-ND
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Registered trials

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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.