Evidence map›Paper›PMID 31620545›Full record

ArticleNeurophotonics2019

High-density speckle contrast optical tomography of cerebral blood flow response to functional stimuli in the rodent brain.

Tanja Dragojević, Ernesto E Vidal Rosas, Joseph L Hollmann, Joseph P Culver, Carles Justicia, Turgut Durduran

Open access · goldAbstract read
In one paragraph

Article in Neurophotonics, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.5field-weighted citation impact, top 17% 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

15 citing papers in PubMed, 23 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. 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

6 authors at 4 institutions in 2 countries.

Tanja DragojevićInstitut de Ciències Fotòniques, The Barcelona Institute of Science and Technology, Barcelona, Spain.ORCID https://orcid.org/0000-0002-7643-0846
Ernesto E Vidal RosasInstitut de Ciències Fotòniques, The Barcelona Institute of Science and Technology, Barcelona, Spain.
Joseph L HollmannInstitut de Ciències Fotòniques, The Barcelona Institute of Science and Technology, Barcelona, Spain.
Joseph P CulverWashington University, School of Medicine, Department of Radiology, St. Louis, Missouri, United States.
Carles JusticiaInstitut d'Investigacions Biomèdiques de Barcelona, Consejo Superior de Investigaciones Científicas, Department of Brain Ischemia and Neurodegeneration, Barcelona, Spain.ORCID https://orcid.org/0000-0003-0969-6158
Turgut DurduranInstitut de Ciències Fotòniques, The Barcelona Institute of Science and Technology, Barcelona, Spain.ORCID https://orcid.org/0000-0001-5838-1027
Institute of Photonic Sciences · ESInstitute of Science and TechnologyConsejo Superior de Investigaciones Científicas · ESWashington University in St. Louis · US

Funding

High-Sensitivity DOT for Mapping Human Brain FunctionR01NS090874 · NINDS · WASHINGTON UNIVERSITY · PI CULVER, JOSEPH P · 2014 to 2025
$5.5M
MAPPING FUNCTIONAL CONNECTIVITY WITH FLUORESCENCE MOLECULAR TOMOGRAPHYR01NS099429 · NINDS · WASHINGTON UNIVERSITY · PI CULVER, JOSEPH P · 2017 to 2021
$2.9M
Wireless High-Density Diffuse Optical Tomography for Decoding Brain ActivityU01EB027005 · NIBIB · WASHINGTON UNIVERSITY · PI CULVER, JOSEPH P · 2018 to 2021
$2.7M
OPTICAL IMAGING AND FUNCTIONAL CONNECTIVITY MAPPING FOR MICER01NS078223 · NINDS · WASHINGTON UNIVERSITY · PI CULVER, JOSEPH P · 2012 to 2016
$2.7M
NIBIB NIH HHS U01 EB027005NINDS NIH HHS R01 NS078223NINDS NIH HHS R01 NS090874NINDS NIH HHS R01 NS099429
6 · The paper itself

Abstract

Noninvasive, three-dimensional, and longitudinal imaging of cerebral blood flow (CBF) in small animal models and ultimately in humans has implications for fundamental research and clinical applications. It enables the study of phenomena such as brain development and learning and the effects of pathologies, with a clear vision for translation to humans. Speckle contrast optical tomography (SCOT) is an emerging optical method that aims to achieve this goal by directly measuring three-dimensional blood flow maps in deep tissue with a relatively inexpensive and simple system. High-density SCOT is developed to follow CBF changes in response to somatosensory cortex stimulation. Measurements are carried out through the intact skull on the rat brain. SCOT is able to follow individual trials in each brain hemisphere, where signal averaging resulted in comparable, cortical images to those of functional magnetic resonance images in spatial extent, location, and depth. Sham stimuli are utilized to demonstrate that the observed response is indeed due to local changes in the brain induced by forepaw stimulation. In developing and demonstrating the method, algorithms and analysis methods are developed. The results pave the way for longitudinal, nondestructive imaging in preclinical rodent models that can readily be translated to the human brain.

Indexed as

blood or tissue constituent monitoringfunctional monitoring and imagingmedical and biological imagingspeckle imaging

Identifiers

PMID31620545
PMCPMC6782685
OpenAlexW2979988337

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.