Evidence map›Paper›PMID 41607020›Full record

ArticleJournal of medical primatology2026

Comparison of Laser Doppler Flowmetry With Contrast-Enhanced Ultrasound to Approximate Placental Microvascular Blood Flow in the African Green Monkey (Chlorocebus aethiops sabaeus).

Yarines Gonzalez-Rodriguez, Rachel W Walmer, Shannon Krainiak, Kelli Carter, Kylie Kavanagh, Kennita Johnson, Sarah N Cilvik

Abstract readComparative Study
In one paragraph

Article in Journal of medical primatology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
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

2 citing papers in PubMed.

  1. Article
  2. 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

7 authors.

Yarines Gonzalez-RodriguezAnimal Resources Program, Wake Forest University School of Medicine, Winston-Salem, North Carolina, USA.
Rachel W WalmerLampe Joint Department of Biomedical Engineering, University of North Carolina-North Carolina State University (UNC-NC State), Raleigh, North Carolina, USA.
Shannon KrainiakDepartment of Pathology, Wake Forest University School of Medicine, Winston-Salem, North Carolina, USA.
Kelli CarterDepartment of Pediatrics, Wake Forest University School of Medicine, Winston-Salem, North Carolina, USA.
Kylie KavanaghDepartment of Pathology, Wake Forest University School of Medicine, Winston-Salem, North Carolina, USA.
Kennita JohnsonLampe Joint Department of Biomedical Engineering, University of North Carolina-North Carolina State University (UNC-NC State), Raleigh, North Carolina, USA.
Sarah N CilvikDepartment of Pediatrics, Wake Forest University School of Medicine, Winston-Salem, North Carolina, USA.ORCID https://orcid.org/0000-0003-4673-1186

Funding

Vervet Research Colony as a Biomedical ResourceP40OD010965 · OD · WAKE FOREST UNIVERSITY HEALTH SCIENCES · PI Matthew Jorgensen · 2012 to 2026
$14.6M
Developmental Origins of Cardiovascular Disease in Offspring from Non-Human Primate Pregnancies at Advanced Maternal AgeR01HL164434 · NHLBI · WAKE FOREST UNIVERSITY HEALTH SCIENCES · PI Sarah N Cilvik · 2023 to 2026
$3.0M
Developmental Origins of Cardiovascular Disease in Offspring from Non-human Primate Pregnancies at Advanced Maternal AgeR56HL164434 · NHLBI · WAKE FOREST UNIVERSITY HEALTH SCIENCES · PI CILVIK, SARAH N · 2022 to 2022
$708k
NHLBI NIH HHS R01 HL164434NHLBI NIH HHS R01HL164434NHLBI NIH HHS R56 HL164434NHLBI NIH HHS R56HL164434NIGMS NIH HHS IRACDA 2K12GM000678-24NIH Office of the Director P40OD010965U.S. Department of Defense W81XWH-21-1-0565
6 · The paper itself

Abstract

backgroundThe ability to study in vivo microvascular flow within the placenta is limited. We sought to compare two techniques for evaluation of placental perfusion in a translational nonhuman primate model.

methodsWe measured placental microvascular perfusion in six pregnant African green monkeys (Chlorocebus aethiops sabaeus) using both Laser Doppler Flowmetry (LDF) and contrast-enhanced ultrasound (CEUS) in 2-4 discrete placental locations per animal at early- (EG), mid- (MG), and/or late-gestation (LG). We assessed correlation between matched LDF and CEUS, with the hypothesis that we would observe concordance between these two measures of relative perfusion.

resultsUsing 35 total paired measurements (13 EG, n = 4; 12 MG, n = 4; 10 LG, n = 5), we found no correlation between LDF microvascular perfusion and CEUS microvascular flux rate (Pearson r = -0.2026, R

conclusionLDF and CEUS produce discordant results with respect to placental perfusion. LDF is ill-suited to a heterogeneous organ such as the placenta.

Indexed as

Laser-Doppler FlowmetryPlacentaPlacental CirculationAnimalsChlorocebus aethiopsContrast MediaFemalePregnancyUltrasonographyContrast Mediamicrovascular perfusionnonhuman primateOxyFloplacentaplacental perfusionvervet monkey

Identifiers

PMID41607020
PMCPMC12852978

What OpenQuestion holds

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LicenceCC BY
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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.