Evidence map›Paper›PMID 31674440›Full record

ArticleJournal of the Optical Society of America. A, Optics, image science, and vision2019

Dual-slope method for enhanced depth sensitivity in diffuse optical spectroscopy.

Angelo Sassaroli, Giles Blaney, Sergio Fantini

Abstract read
In one paragraph

Article in Journal of the Optical Society of America. A, Optics, image science, and vision, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers.

0numbers the graph read from it
0cells of the map it votes in
40citing 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

40 citing papers in PubMed.

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  14. Phase-based structured interrogation frequency-domain near-infrared spectroscopy.Journal of the Optical Society of America. A, Optics, image science, and vision · 2024
    Article
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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

3 authors.

Angelo Sassaroli
Giles Blaney
Sergio Fantini

Funding

Coherent hemodynamics spectroscopy for cerebral autoregulation and blood flowR01NS095334 · NINDS · TUFTS UNIVERSITY MEDFORD · PI FANTINI, SERGIO · 2016 to 2020
$2.6M
NINDS NIH HHS R01 NS095334
6 · The paper itself

Abstract

Using diffusion theory, we show that a dual-slope method is more effective than single-slope methods or single-distance methods at enhancing sensitivity to deeper tissue. The dual-slope method requires a minimum of two sources and two detectors arranged in specially configured arrays. In particular, we present diffusion theory results for a symmetrical linear array of two sources (separated by 55 mm) that sandwich two detectors (separated by 15 mm), for which dual slopes achieve maximal sensitivity at a depth of about 5 mm for direct current (DC) intensity (as measured in continuous-wave spectroscopy) and 11 mm for phase (as measured in frequency-domain spectroscopy) under typical values of the tissue optical properties (absorption coefficient: ∼0.01

Identifiers

PMID31674440
PMCPMC7160974

What OpenQuestion holds

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Registered trials

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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.