Evidence map›Paper›PMID 41981026›Full record

ArticleScientific reports2026

Moiré artifact reduction in grating interferometry using multiple harmonics and total variation regularization.

Hunter C Meyer, Joyoni Dey, Conner B Dooley, Murtuza S Taqi, Varun R Gala, Christopher D Morrison, Victoria L Fontenot, Kyungmin Ham, Leslie G Butler, Alexandra Noël

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PubMed Full text at PMC Publisher
In one paragraph

Article in Scientific reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. 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

10 authors.

Hunter C MeyerDepartment of Physics and Astronomy, Louisiana State University, Baton Rouge, LA, 70803, USA.
Joyoni DeyDepartment of Physics and Astronomy, Louisiana State University, Baton Rouge, LA, 70803, USA. deyj@lsu.edu.
Conner B DooleyDepartment of Physics, East Carolina University, Greenville, NC, 27858, USA.
Murtuza S TaqiDepartment of Physics and Astronomy, Louisiana State University, Baton Rouge, LA, 70803, USA.
Varun R GalaDepartment of Physics, University of California, Santa Barbara, CA, 93106, USA.
Christopher D MorrisonPennington Biomedical Research Center, Baton Rouge, LA, 70808, USA.
Victoria L FontenotDepartment of Physics and Astronomy, Louisiana State University, Baton Rouge, LA, 70803, USA.
Kyungmin HamCenter for Advanced Microstructures and Devices, Baton Rouge, LA, 70806, USA.
Leslie G ButlerDepartment of Chemistry, Louisiana State University, Baton Rouge, LA, 70803, USA.
Alexandra NoëlDepartment of Comparative Biomedical Sciences, Louisiana State University School of Veterinary Medicine, Baton Rouge, LA, 70803, USA.

Funding

NIH HHS NIBIB Trail-blazer Award 1-R21-EB029026-01A1NSF REU (LSU site) NSF Grant 271 No. 2150445
6 · The paper itself

Abstract

X-ray interferometry is an emerging imaging modality with a wide variety of potential clinical applications, including lung imaging. A grating interferometer uses a diffraction grating to produce a periodic interference pattern and measures how a patient or sample perturbs the pattern, producing three unique images that highlight X-ray absorption, refraction, and small angle scattering, known as the attenuation, differential-phase, and dark-field images, respectively. Inaccuracies in grating position and multi-harmonic fringes produce Moiré artifacts when assuming the fringe pattern is perfectly sinusoidal and the phase steps are evenly spaced. We have developed an image recovery algorithm that estimates the true phase stepping positions using multiple harmonics and total variation regularization, removing the Moiré artifacts present in the attenuation, differential-phase, and dark-field images. We demonstrate the algorithm's utility for the Talbot-Lau and Modulated Phase Grating Interferometers by imaging multiple samples, including PMMA microspheres and a euthanized mouse.

Identifiers

PMID41981026
PMCPMC13237242

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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.