Evidence map›Paper›PMID 35852607›Full record

ArticleEuropean spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society2022

An externally validated deep learning model for the accurate segmentation of the lumbar paravertebral muscles.

Frank Niemeyer, Annika Zanker, René Jonas, Youping Tao, Fabio Galbusera, Hans-Joachim Wilke

Abstract read
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In one paragraph

Article in European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 2 pooled it
1.4field-weighted citation impact, top 21% 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

18 citing papers in PubMed, 2 syntheses or guidelines pooled it, 23 citations in OpenAlex.

  1. Pooled it
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  7. Automated analysis of paraspinal muscles: segmentation and multi-parameter quantification in lumbar CT using convolutional neural network.European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2026
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  16. Cross-sectional area and fat infiltration of the lumbar spine muscles in patients with back disorders: a deep learning-based big data analysis.European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2024
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  18. DecompressionFrontiers in neurology · 2023
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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

6 authors at 2 institutions in 2 countries.

Frank NiemeyerCenter for Trauma Research Ulm, Institute of Orthopaedic Research and Biomechanics, Ulm University, Ulm, Germany.
Annika ZankerCenter for Trauma Research Ulm, Institute of Orthopaedic Research and Biomechanics, Ulm University, Ulm, Germany.
René JonasCenter for Trauma Research Ulm, Institute of Orthopaedic Research and Biomechanics, Ulm University, Ulm, Germany.
Youping TaoCenter for Trauma Research Ulm, Institute of Orthopaedic Research and Biomechanics, Ulm University, Ulm, Germany.
Fabio GalbuseraSpine Center, Schulthess Clinic, Lengghalde 2, 8008, Zurich, Switzerland. fabio.galbusera@kws.ch.ORCID http://orcid.org/0000-0003-1826-9190
Hans-Joachim WilkeCenter for Trauma Research Ulm, Institute of Orthopaedic Research and Biomechanics, Ulm University, Ulm, Germany.
Universität Ulm · DESchulthess-Klinik · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeImaging studies about the relevance of muscles in spinal disorders, and sarcopenia in general, require the segmentation of the muscles in the images which is very labour-intensive if performed manually and poses a practical limit to the number of investigated subjects. This study aimed at developing a deep learning-based tool able to fully automatically perform an accurate segmentation of the lumbar muscles in axial MRI scans, and at validating the new tool on an external dataset.

methodsA set of 60 axial MRI images of the lumbar spine was retrospectively collected from a clinical database. Psoas major, quadratus lumborum, erector spinae, and multifidus were manually segmented in all available slices. The dataset was used to train and validate a deep neural network able to segment muscles automatically. Subsequently, the network was externally validated on images purposely acquired from 22 healthy volunteers.

resultsThe median Jaccard index for the individual muscles calculated for the 22 subjects of the external validation set ranged between 0.862 and 0.935, demonstrating a generally excellent performance of the network, although occasional failures were noted. Cross-sectional area and fat fraction of the muscles were in agreement with published data.

conclusionsThe externally validated deep neural network was able to perform the segmentation of the paravertebral muscles in an accurate and fully automated manner, although it is not without limitations. The model is therefore a suitable research tool to perform large-scale studies in the field of spinal disorders and sarcopenia, overcoming the limitations of non-automated methods.

Indexed as

Deep LearningSarcopeniaHumansLumbosacral RegionMagnetic Resonance ImagingMusclesParaspinal MusclesRetrospective StudiesDeep learningFat fractionLumbar spineParavertebral musclesSarcopeniaSegmentation

Identifiers

PMID35852607
OpenAlexW4285793550

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.