Evidence map›Paper›PMID 38777592›Full record

ArticleBMJ open2024

Development and validation of a reliable method for automated measurements of psoas muscle volume in CT scans using deep learning-based segmentation: a cross-sectional study.

Woorim Choi, Chul-Ho Kim, Hyein Yoo, Hee Rim Yun, Da-Wit Kim, Ji Wan Kim

Abstract readValidation Study
In one paragraph

Article in BMJ open, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing 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

9 citing papers in PubMed.

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  7. Sarcopenia-A Valuable Imaging Biomarker for Disease Progression in Patients With Primary Sclerosing Cholangitis (PSC)?Liver international : official journal of the International Association for the Study of the Liver · 2025
    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

6 authors.

Woorim ChoiBiomedical Research Center, Asan Medical Center, Songpa-gu, Seoul, Republic of Korea.
Chul-Ho KimDepartment of Orthopedic Surgery, Asan Medical Center, University of Ulsan College of Medicine, Songpa-gu, Seoul, Republic of Korea.
Hyein YooBiomedical Research Center, Asan Medical Center, Songpa-gu, Seoul, Republic of Korea.
Hee Rim YunCoreline Soft Co., Ltd, Mapo-gu, Seoul, Republic of Korea.
Da-Wit KimCoreline Soft Co., Ltd, Mapo-gu, Seoul, Republic of Korea.
Ji Wan KimDepartment of Orthopedic Surgery, Asan Medical Center, University of Ulsan College of Medicine, Songpa-gu, Seoul, Republic of Korea bakpaker@hanmail.net.ORCID 0000-0002-3524-8706

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesWe aimed to develop an automated method for measuring the volume of the psoas muscle using CT to aid sarcopenia research efficiently.

methodsWe used a data set comprising the CT scans of 520 participants who underwent health check-ups at a health promotion centre. We developed a psoas muscle segmentation model using deep learning in a three-step process based on the nnU-Net method. The automated segmentation method was evaluated for accuracy, reliability, and time required for the measurement.

resultsThe Dice similarity coefficient was used to compare the manual segmentation with automated segmentation; an average Dice score of 0.927 ± 0.019 was obtained, with no critical outliers. Our automated segmentation system had an average measurement time of 2 min 20 s ± 20 s, which was 48 times shorter than that of the manual measurement method (111 min 6 s ± 25 min 25 s).

conclusionWe have successfully developed an automated segmentation method to measure the psoas muscle volume that ensures consistent and unbiased estimates across a wide range of CT images.

Indexed as

Deep LearningPsoas MusclesSarcopeniaTomography, X-Ray ComputedAdultAgedCross-Sectional StudiesFemaleHumansMaleMiddle AgedOrgan SizeReproducibility of ResultsArtificial IntelligenceComputed tomographyDiagnostic Imaging

Identifiers

PMID38777592
PMCPMC11116865

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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.