Evidence map›Paper›PMID 31326311›Full record

ArticleAcademic radiology2019

Machine Learning for Automatic Paraspinous Muscle Area and Attenuation Measures on Low-Dose Chest CT Scans.

Ryan Barnard, Josh Tan, Brandon Roller, Caroline Chiles, Ashley A Weaver, Robert D Boutin, Stephen B Kritchevsky, Leon Lenchik

Open access · greenAbstract read
In one paragraph

Article in Academic radiology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed, 1 pooled it
4.6field-weighted citation impact, top 5% 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

31 citing papers in PubMed, 1 synthesis or guideline pooled it, 46 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Trial
  4. Automated Muscle Measurement on Chest CT Predicts All-Cause Mortality in Older Adults From the National Lung Screening Trial.The journals of gerontology. Series A, Biological sciences and medical sciences · 2021
    Trial
  5. Article
  6. Article
  7. Article
  8. Article
  9. Assessment of trabecular bone Hounsfield units in the lumbar spine for osteoporosis evaluation in individuals aged 65 and above: a review.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2025
    Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Review
  18. Sarcopenia: imaging assessment and clinical application.Abdominal radiology (New York) · 2022
    Review
  19. Article
  20. Review
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

8 authors at 2 institutions in 1 country.

Ryan BarnardDepartment of Biostatistical Sciences, Division of Public Health Sciences, Wake Forest School of Medicine, Winston-Salem, North Carolina.
Josh TanDepartment of Radiology, Wake Forest School of Medicine, Medical Center Blvd, Winston-Salem, NC 27157.
Brandon RollerDepartment of Radiology, Wake Forest School of Medicine, Medical Center Blvd, Winston-Salem, NC 27157.
Caroline ChilesDepartment of Radiology, Wake Forest School of Medicine, Medical Center Blvd, Winston-Salem, NC 27157.
Ashley A WeaverDepartment of Biomedical Engineering, Wake Forest School of Medicine, Winston-Salem, North Carolina.
Robert D BoutinDepartment of Radiology, University of California Davis School of Medicine, Sacramento, California.
Stephen B KritchevskyDepartment of Internal Medicine, Section on Gerontology and Geriatric Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina.
Leon LenchikDepartment of Radiology, Wake Forest School of Medicine, Medical Center Blvd, Winston-Salem, NC 27157. Electronic address: llenchik@wakehealth.edu.
Wake Forest University · USUniversity of California, Davis · US

Funding

Wake Forest Claude D. Pepper OAIC - RenewalP30AG021332 · NIA · WAKE FOREST UNIVERSITY HEALTH SCIENCES · PI Jamie Nicole Justice · 2002 to 2026
$36.4M
Wake Forest Clinical and Translational Science AwardUL1TR001420 · NCATS · WAKE FOREST UNIVERSITY HEALTH SCIENCES · PI ARD, JAMY D, FOLEY, KRISTIE L · 2015 to 2023
$32.3M
Effect of protein supplementation during weight loss on older adult bone healthK25AG058804 · NIA · WAKE FOREST UNIVERSITY HEALTH SCIENCES · PI WEAVER, ASHLEY · 2019 to 2023
$672k
NCATS NIH HHS UL1 TR001420NIA NIH HHS K25 AG058804NIA NIH HHS P30 AG021332
6 · The paper itself

Abstract

RATIONALE AND

objectivesTo develop and evaluate an automated machine learning (ML) algorithm for segmenting the paraspinous muscles on chest computed tomography (CT) scans to evaluate for presence of sarcopenia. MATERIALS AND

methodsA convolutional neural network based on the U-Net architecture was trained to perform muscle segmentation on a dataset of 1875 single slice CT images and was tested on 209 CT images of participants in the National Lung Screening Trial. Low-dose, noncontrast CT examinations were obtained at 33 clinical sites, using scanners from four manufacturers. The study participants had a mean age of 71.6 years (range, 70-74 years). Ground truth was obtained by manually segmenting the left paraspinous muscle at the level of the T12 vertebra. Muscle cross-sectional area (CSA) and muscle attenuation (MA) were recorded. Comparison between the ML algorithm and ground truth measures of muscle CSA and MA were obtained using Dice similarity coefficients and Pearson correlations.

resultsCompared to ground truth segmentation, the ML algorithm achieved median (standard deviation) Dice scores of 0.94 (0.04) in the test set. Mean (SD) muscle CSA was 14.3 (3.6) cm

conclusionThe ML algorithm for measurement of paraspinous muscles compared favorably to manual ground truth measurements in the NLST. The algorithm generalized well to a heterogeneous set of low-dose CT images and may be capable of automated quantification of muscle metrics to screen for sarcopenia on routine chest CT examinations.

Indexed as

AlgorithmsMachine LearningAgedFemaleHumansMaleMiddle AgedParaspinal MusclesRadiation DosageSarcopeniaTomography, X-Ray ComputedChest CTMachine learningMuscleMyosteatosisSarcopenia

Identifiers

PMID31326311
PMCPMC6878160
OpenAlexW2961180286

What OpenQuestion holds

Textmetadata
LicenceTDM
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.