Evidence map›Paper›PMID 39347007›Full record

ArticleBiomedical optics express2024

Stochastic Gauss-Newton method for estimating absorption and scattering in optical tomography with the Monte Carlo method for light transport.

Jonna Kangasniemi, Meghdoot Mozumder, Aki Pulkkinen, Tanja Tarvainen

Abstract read
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Article in Biomedical optics express, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing 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

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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

3 citing papers in PubMed.

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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

4 authors.

Jonna KangasniemiUniversity of Eastern Finland, Department of Technical Physics, P.O. Box 1627, 70211 Kuopio, Finland.ORCID https://orcid.org/0000-0003-0170-204X
Meghdoot MozumderUniversity of Eastern Finland, Department of Technical Physics, P.O. Box 1627, 70211 Kuopio, Finland.ORCID https://orcid.org/0000-0002-0656-4291
Aki PulkkinenUniversity of Eastern Finland, Department of Technical Physics, P.O. Box 1627, 70211 Kuopio, Finland.ORCID https://orcid.org/0000-0003-2997-5728
Tanja TarvainenUniversity of Eastern Finland, Department of Technical Physics, P.O. Box 1627, 70211 Kuopio, Finland.ORCID https://orcid.org/0000-0002-7919-4033

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Image reconstruction in optical tomography in the so-called transport regime, where the diffusion approximation is not valid, requires modeling of light transport using the radiative transfer equation. In this work, we approach this problem by utilizing the Monte Carlo method for light transport. In this work, we propose a methodology for absolute imaging of absorption and scattering in this regime utilizing a Monte Carlo method for light transport. The image reconstruction problem is formulated as a minimization problem that is solved using a stochastic Gauss-Newton method. In the construction of the Jacobian matrix for scattering, a perturbation approximation for Monte Carlo is utilized. The approach is evaluated with numerical simulations using an adaptive approach where the number of photon packets is adjusted during the iterations, and with different fixed numbers of photon packets. The simulations show that the Monte Carlo method for light transport can be utilized in the absolute imaging problem of optical tomography and that the absorption and scattering parameters can be estimated simultaneously with good accuracy.

Identifiers

PMID39347007
PMCPMC11427215

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