Evidence map›Paper›PMID 32923078›Full record

ArticleBiomedical optics express2020

Hematocrit significantly confounds diffuse correlation spectroscopy measurements of blood flow.

Eashani Sathialingam, Evelyn Kendall Williams, Seung Yup Lee, Courtney E McCracken, Wilbur A Lam, Erin M Buckley

Open access · goldAbstract read
In one paragraph

Article in Biomedical optics express, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
0.9field-weighted citation impact, top 22% 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, 15 citations in OpenAlex.

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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

6 authors at 2 institutions in 1 country.

Eashani SathialingamWallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, 1760 Haygood Dr, NE, Atlanta, GA 30322, USA.ORCID https://orcid.org/0000-0001-6190-049X
Evelyn Kendall WilliamsWallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, 1760 Haygood Dr, NE, Atlanta, GA 30322, USA.
Seung Yup LeeWallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, 1760 Haygood Dr, NE, Atlanta, GA 30322, USA.ORCID https://orcid.org/0000-0002-0530-8464
Courtney E McCrackenDepartment of Pediatrics, School of Medicine, Emory University, 2015 Uppergate Dr., Atlanta, GA 30322, USA.
Wilbur A LamWallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, 1760 Haygood Dr, NE, Atlanta, GA 30322, USA.
Erin M BuckleyWallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, 1760 Haygood Dr, NE, Atlanta, GA 30322, USA.
Georgia Institute of Technology · USEmory University · US

Funding

Microvascular Cerebral Blood Flow Measured with Diffuse Correlation Spectroscopy in Children with Sickle Cell DiseaseR21HL138062 · NHLBI · EMORY UNIVERSITY · PI BUCKLEY, ERIN MCGUIRE · 2017 to 2018
$420k
NHLBI NIH HHS R21 HL138062
6 · The paper itself

Abstract

Diffuse correlation spectroscopy (DCS) is an optical modality used to measure an index of blood flow in biological tissue. This blood flow index depends on both the red blood cell flow rate and density (i.e., hematocrit), although the functional form of hematocrit dependence is not well delineated. Herein, we develop and validate a novel tissue-simulating phantom containing hundreds of microchannels to investigate the influence of hematocrit on blood flow index. For a fixed flow rate, we demonstrate a significant inverse relationship between hematocrit and blood flow index that must be accounted for to accurately estimate blood flow under anemic conditions.

Identifiers

PMID32923078
PMCPMC7449719
OpenAlexW3043783411

What OpenQuestion holds

Textmetadata
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.