Evidence map›Paper›PMID 37164976›Full record

ArticleScientific data2023

M4Raw: A multi-contrast, multi-repetition, multi-channel MRI k-space dataset for low-field MRI research.

Mengye Lyu, Lifeng Mei, Shoujin Huang, Sixing Liu, Yi Li, Kexin Yang, Yilong Liu, Yu Dong, Linzheng Dong, Ed X Wu

Abstract readDataset
In one paragraph

Article in Scientific data, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing 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

26 citing papers in PubMed.

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  12. WCCAN: Windowed Cross-contrast Attention Network for Multi-contrast Brain MR Image Super-resolution.Magnetic resonance in medical sciences : MRMS : an official journal of Japan Society of Magnetic Resonance in Medicine · 2026
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  16. UltimateSynth: MRI Physics for Pan-Contrast AI.bioRxiv : the preprint server for biology · 2025
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  17. Review
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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

10 authors.

Mengye LyuCollege of Health Science and Environmental Engineering, Shenzhen Technology University, Shenzhen, China. lvmengye@gmail.com.ORCID 0000-0001-5548-8136
Lifeng MeiCollege of Health Science and Environmental Engineering, Shenzhen Technology University, Shenzhen, China.
Shoujin HuangCollege of Health Science and Environmental Engineering, Shenzhen Technology University, Shenzhen, China.
Sixing LiuCollege of Health Science and Environmental Engineering, Shenzhen Technology University, Shenzhen, China.ORCID 0000-0002-6076-5449
Yi LiCollege of Health Science and Environmental Engineering, Shenzhen Technology University, Shenzhen, China.
Kexin YangCollege of Health Science and Environmental Engineering, Shenzhen Technology University, Shenzhen, China.
Yilong LiuGuangdong-Hongkong-Macau Institute of CNS Regeneration, Key Laboratory of CNS Regeneration (Ministry of Education), Jinan University, Guangzhou, China.ORCID 0000-0001-9295-7982
Yu DongDepartment of Neurosurgery, Shenzhen Samii Medical Center, Shenzhen, China.
Linzheng DongDepartment of Neurosurgery, Shenzhen Samii Medical Center, Shenzhen, China.
Ed X WuLaboratory of Biomedical Imaging and Signal Processing, The University of Hong Kong, Hong Kong, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Recently, low-field magnetic resonance imaging (MRI) has gained renewed interest to promote MRI accessibility and affordability worldwide. The presented M4Raw dataset aims to facilitate methodology development and reproducible research in this field. The dataset comprises multi-channel brain k-space data collected from 183 healthy volunteers using a 0.3 Tesla whole-body MRI system, and includes T1-weighted, T2-weighted, and fluid attenuated inversion recovery (FLAIR) images with in-plane resolution of ~1.2 mm and through-plane resolution of 5 mm. Importantly, each contrast contains multiple repetitions, which can be used individually or to form multi-repetition averaged images. After excluding motion-corrupted data, the partitioned training and validation subsets contain 1024 and 240 volumes, respectively. To demonstrate the potential utility of this dataset, we trained deep learning models for image denoising and parallel imaging tasks and compared their performance with traditional reconstruction methods. This M4Raw dataset will be valuable for the development of advanced data-driven methods specifically for low-field MRI. It can also serve as a benchmark dataset for general MRI reconstruction algorithms.

Indexed as

BrainMagnetic Resonance ImagingAlgorithmsHumansImage Processing, Computer-AssistedWhole Body Imaging

Identifiers

PMID37164976
PMCPMC10172399

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.