Evidence map›Paper›PMID 26082942›Full record

ArticleeNeuro

Measurement of Retinal Blood Flow Using Fluorescently Labeled Red Blood Cells.

Tess E Kornfield, Eric A Newman

Open access · goldAbstract read
In one paragraph

Article in eNeuro. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
2.7field-weighted citation impact, top 11% 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

24 citing papers in PubMed, 42 citations in OpenAlex.

  1. Article
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  10. Review
  11. A Permanent Window for Investigating Cancer Metastasis to the Lung.Journal of visualized experiments : JoVE · 2021
    Article
  12. Labeling of Erythrocytes by Porphyrin-Phospholipid.Advanced nanobiomed research · 2021
    Article
  13. Article
  14. Nano letters · 2020
    Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. NoninvasiveBiomedical optics express · 2018
    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

2 authors at 1 institution in 1 country.

Tess E KornfieldDepartment of Neuroscience, University of Minnesota, Minneapolis, Minnesota 55455.
Eric A NewmanDepartment of Neuroscience, University of Minnesota, Minneapolis, Minnesota 55455.
University of Minnesota · US

Funding

Visual TestingP30EY011374 · NEI · UNIVERSITY OF MINNESOTA TWIN CITIES · PI NEWMAN, ERIC A · 1996 to 2019
$8.8M
PHYSIOLOGY OF RETINAL MULLER CELLS AND ASTROCYTESR01EY004077 · NEI · UNIVERSITY OF MINNESOTA TWIN CITIES · PI NEWMAN, ERIC A · 1985 to 2013
$5.7M
PREDOCTORAL TRAINING OF NEUROSCIENTISTST32GM008471 · NIGMS · UNIVERSITY OF MINNESOTA TWIN CITIES · PI EBNER, TIMOTHY J · 1993 to 2017
$4.9M
VISUAL NEUROSCIENCE TRAINING PROGRAMT32EY007133 · NEI · UNIVERSITY OF MINNESOTA TWIN CITIES · PI MCLOON, STEVEN C · 1991 to 2010
$2.0M
NEI NIH HHS P30 EY011374NEI NIH HHS R01 EY004077NEI NIH HHS T32 EY007133NIGMS NIH HHS T32 GM008471
6 · The paper itself

Abstract

Blood flow is a useful indicator of the metabolic state of the retina. However, accurate measurement of retinal blood flow is difficult to achieve in practice. Most existing optical techniques used for measuring blood flow require complex assumptions and calculations. We describe here a simple and direct method for calculating absolute blood flow in vessels of all sizes in the rat retina. The method relies on ultrafast confocal line scans to track the passage of fluorescently labeled red blood cells (fRBCs). The accuracy of the blood flow measurements was verified by (1) comparing blood flow calculated independently using either flux or velocity combined with diameter measurements, (2) measuring total retinal blood flow in arterioles and venules, (3) measuring blood flow at vessel branch points, and (4) measuring changes in blood flow in response to hyperoxic and hypercapnic challenge. Confocal line scans oriented parallel and diagonal to vessels were used to compute fRBC velocity and to examine velocity profiles across the width of vessels. We demonstrate that these methods provide accurate measures of absolute blood flow and velocity in retinal vessels of all sizes.

Indexed as

blood flowmethodsratred blood cell velocityretina

Identifiers

PMID26082942
PMCPMC4465795
OpenAlexW2145993331

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.