Evidence map›Paper›PMID 31143506›Full record

ArticleBiomedical optics express2019

Ergonomic handheld OCT angiography probe optimized for pediatric and supine imaging.

Christian Viehland, Xi Chen, Du Tran-Viet, Moseph Jackson-Atogi, Pablo Ortiz, Gar Waterman, Lejla Vajzovic, Cynthia A Toth, Joseph A Izatt

2 registry-linked trialsOpen access · goldAbstract read
In one paragraph

Article in Biomedical optics express, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 56 papers.

0numbers the graph read from it
0cells of the map it votes in
56citing papers in PubMed
7.9field-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.

NCT02887157 completednot on this map

Analyzing Retinal Microanatomy in Retinopathy of Prematurity to Improve Care (BabySTEPS)

TypeobservationalSponsorDuke UniversityRan2016 to 2021Enrolled191ConditionsRetinopathy of Prematurity, Neurodevelopmental Disorders, Macular EdemaArmsSwept Source OCT, Magnetic Resonance Imaging, Scavenged blood collection
NCT04995341 narecruitingnot on this mapstarted 2021, after this paper: background citation

Analyzing Retinal Microanatomy in Retinopathy of Prematurity to Improve Care 2 and School Age Follow on Study (BabySTEPS2)

TypeinterventionalSponsorDuke UniversityRan2021 to 2027Enrolled236ConditionsRetinopathy of PrematurityArmsInvestigational ultracompact OCT and OCTA system, retinal photographs
3 · Its place in the literature

Who cites it

56 citing papers in PubMed, 85 citations in OpenAlex.

  1. Observational
  2. Article
  3. Article
  4. Management of incontinentia pigmenti retinopathy.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2026
    Review
  5. Article
  6. Article
  7. Article
  8. Mobile Robotic Optical Coherence Tomography System for Ophthalmic Imaging in Clinical Environments.... International Symposium on Medical Robotics. International Symposium on Medical Robotics · 2025
    Article
  9. Review
  10. Article
  11. Advances in OCT Angiography.Translational vision science & technology · 2025
    Review
  12. New Directions for Ophthalmic OCT - Handhelds, Surgery, and Robotics.Translational vision science & technology · 2025
    Review
  13. Article
  14. Article
  15. Review
  16. Repeatability and reproducibility of quantitative OCT angiography measurements from table-top and portable Flex Spectralis devices.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2024
    Article
  17. Article
  18. Article
  19. Article
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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 1 institution in 1 country.

Christian ViehlandDepartment of Biomedical Engineering, Duke University, Durham, NC 27708, USA.
Xi ChenDepartment of Ophthalmology, Duke University, Durham, NC, 27708, USA.
Du Tran-VietDepartment of Ophthalmology, Duke University, Durham, NC, 27708, USA.
Moseph Jackson-AtogiDepartment of Ophthalmology, Duke University, Durham, NC, 27708, USA.
Pablo OrtizDepartment of Biomedical Engineering, Duke University, Durham, NC 27708, USA.
Gar WatermanDepartment of Biomedical Engineering, Duke University, Durham, NC 27708, USA.
Lejla VajzovicDepartment of Ophthalmology, Duke University, Durham, NC, 27708, USA.
Cynthia A TothDepartment of Biomedical Engineering, Duke University, Durham, NC 27708, USA.
Joseph A IzattDepartment of Biomedical Engineering, Duke University, Durham, NC 27708, USA.
Duke University · US

Funding

Analyzing Retinal Microanatomy in Retinopathy of Prematurity to Improve CareR01EY025009 · NEI · DUKE UNIVERSITY · PI Xi Chen, CYNTHIA ANN TOTH · 2016 to 2026
$6.6M
Retinal Neurovascular Patterning in Preterm InfantsK23EY028227 · NEI · DUKE UNIVERSITY · PI CHEN, XI · 2017 to 2021
$929k
Bedside Optical Retinal Assessment of Hypoxic Ischemic Encephalopathy in InfantsR21EY029384 · NEI · DUKE UNIVERSITY · PI TOTH, CYNTHIA ANN · 2018 to 2019
$454k
NEI NIH HHS K23 EY028227NEI NIH HHS R01 EY025009NEI NIH HHS R21 EY029384
6 · The paper itself

Abstract

OCT angiography is a functional extension of OCT that allows for non-invasive imaging of retinal microvasculature. However, most current OCT angiography systems are tabletop systems that are typically used for imaging compliant, seated subjects. These systems cannot be readily applied for imaging important patient populations such as bedridden patients, patients undergoing surgery in the operating room, young children in the clinic, and infants in the intensive care nursery. In this manuscript, we describe the design and development of a non-contact, handheld probe optimized for OCT angiography that features a novel diverging light on the scanner optical design that provides improved optical performance over traditional OCT scanner designs. Unlike most handheld OCT probes, which are designed to be held by the side of the case or by a handle, the new probe was optimized for ergonomics of supine imaging where imagers prefer to hold the probe by the lens tube. The probe's design also includes an adjustable brace that gives the operator a point of contact closer to the center of mass of the probe, reducing the moment of inertia around the operator's fingers, facilitating stabilization, and reducing operator fatigue. The probe supports high-speed imaging using a 200 kHz swept source OCT engine, has a motorized stage that provides + 10 to -10 D refractive error correction and weighs 700g. We present initial handheld OCT angiography images from healthy adult volunteers, young children during exams under anesthesia, and non-sedated infants in the intensive care nursery. To the best of our knowledge, this represents the first reported use of handheld OCT angiography in non-sedated infants, and the first handheld OCT angiography images which show the clear delineation of key features of the retinal capillary complex including the foveal avascular zone, peripapillary vasculature, the superficial vascular complex, and the deep vascular complex.

Identifiers

PMID31143506
PMCPMC6524583
OpenAlexW2940503293

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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.