Evidence map›Paper›PMID 37791277›Full record

ArticleBiomedical optics express2023

Assessing depth sensitivity in laser interferometry speckle visibility spectroscopy (iSVS) through source-to-detector distance variation and cerebral blood flow monitoring in humans and rabbits.

Simon Mahler, Yu Xi Huang, Mingshu Liang, Alan Avalos, Julian M Tyszka, Jerome Mertz, Changhuei Yang

Open access · goldAbstract read
In one paragraph

Article in Biomedical optics express, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
4.6field-weighted citation impact, top 4% 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

13 citing papers in PubMed, 26 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

7 authors at 1 institution in 1 country.

Simon MahlerDepartment of Electrical Engineering, California Institute of Technology, Pasadena, California 91125, USA.ORCID https://orcid.org/0000-0002-9761-445X
Yu Xi HuangDepartment of Electrical Engineering, California Institute of Technology, Pasadena, California 91125, USA.ORCID https://orcid.org/0009-0000-0165-2084
Mingshu LiangDepartment of Electrical Engineering, California Institute of Technology, Pasadena, California 91125, USA.ORCID https://orcid.org/0000-0001-7748-7652
Alan AvalosOffice of Laboratory Animal Resources (OLAR), California Institute of Technology, Pasadena, California 91125, USA.
Julian M TyszkaDivision of Humanities and Social Sciences, California Institute of Technology, Pasadena, California 91125, USA.
Jerome MertzDepartment of Biomedical Engineering, Boston University, Boston, Massachusetts 02215, USA.ORCID https://orcid.org/0000-0002-6343-9155
Changhuei YangDepartment of Electrical Engineering, California Institute of Technology, Pasadena, California 91125, USA.
California Institute of Technology · US

Funding

Interferometric Speckle Visibility Spectroscopy for Brain Activity Associated Cerebral Blood Flow MonitoringR21EY033086 · NEI · CALIFORNIA INSTITUTE OF TECHNOLOGY · PI YANG, CHANGHUEI · 2021 to 2022
$455k
NEI NIH HHS R21 EY033086
6 · The paper itself

Abstract

Recently, speckle visibility spectroscopy (SVS) was non-invasively applied on the head to monitor cerebral blood flow. The technique, using a multi-pixel detecting device (e.g., camera), allows the detection of a larger number of speckles, increasing the proportion of light that is detected. Due to this increase, it is possible to collect light that has propagated deeper through the brain. As a direct consequence, cerebral blood flow can be monitored. However, isolating the cerebral blood flow from the other layers, such as the scalp or skull components, remains challenging. In this paper, we report our investigations on the depth-sensitivity of laser interferometry speckle visibility spectroscopy (iSVS). Specifically, we varied the depth of penetration of the laser light into the head by tuning the source-to-detector distance, and identified the transition point at which cerebral blood flow in humans and rabbits starts to be detected.

Identifiers

PMID37791277
PMCPMC10545208
OpenAlexW4386027256

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.