Evidence map›Paper›PMID 37580382›Full record

ArticleCommunications biology2023

Measuring human cerebral blood flow and brain function with fiber-based speckle contrast optical spectroscopy system.

Byungchan Kim, Sharvari Zilpelwar, Edbert J Sie, Francesco Marsili, Bernhard Zimmermann, David A Boas, Xiaojun Cheng

Open access · goldAbstract read
In one paragraph

Article in Communications biology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed
13.3field-weighted citation impact, top 1% 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

39 citing papers in PubMed, 58 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
  16. Article
  17. Article
  18. Article
  19. 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

7 authors at 2 institutions in 1 country.

Byungchan Kim *Neurophotonics Center, Department of Biomedical Engineering, Boston University, Boston, MA, USA.ORCID http://orcid.org/0000-0001-5144-7644
Sharvari Zilpelwar *Neurophotonics Center, Department of Biomedical Engineering, Boston University, Boston, MA, USA.
Edbert J SieReality Labs Research, Meta Platforms Inc, Menlo Park, CA, USA.
Francesco MarsiliReality Labs Research, Meta Platforms Inc, Menlo Park, CA, USA.
Bernhard ZimmermannNeurophotonics Center, Department of Biomedical Engineering, Boston University, Boston, MA, USA.
David A BoasNeurophotonics Center, Department of Biomedical Engineering, Boston University, Boston, MA, USA.ORCID http://orcid.org/0000-0002-6709-7711
Xiaojun ChengNeurophotonics Center, Department of Biomedical Engineering, Boston University, Boston, MA, USA. xcheng17@bu.edu.ORCID http://orcid.org/0000-0002-3568-0603
Boston University · USMeta (United States) · US

Funding

A transformative method for functional brain imaging with Speckle Contrast Optical SpectroscopyUG3EB034710 · NIBIB · BOSTON UNIVERSITY (CHARLES RIVER CAMPUS) · PI BOAS, DAVID A, CHENG, XIAOJUN · 2023 to 2025
$1.1M
NIBIB NIH HHS UG3 EB034710
6 · The paper itself

Abstract

Cerebral blood flow (CBF) is crucial for brain health. Speckle contrast optical spectroscopy (SCOS) is a technique that has been recently developed to measure CBF, but the use of SCOS to measure human brain function at large source-detector separations with comparable or greater sensitivity to cerebral rather than extracerebral blood flow has not been demonstrated. We describe a fiber-based SCOS system capable of measuring human brain activation induced CBF changes at 33 mm source detector separations using CMOS detectors. The system implements a pulsing strategy to improve the photon flux and uses a data processing pipeline to improve measurement accuracy. We show that SCOS outperforms the current leading optical modality for measuring CBF, i.e. diffuse correlation spectroscopy (DCS), achieving more than 10x SNR improvement at a similar financial cost. Fiber-based SCOS provides an alternative approach to functional neuroimaging for cognitive neuroscience and health science applications.

Indexed as

BrainBrain IschemiaCerebrovascular CirculationHemodynamicsHumansSpectrum Analysis

Identifiers

PMID37580382
PMCPMC10425329
OpenAlexW4385806270

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.