Evidence map›Paper›PMID 32677567›Full record

ArticleGlobal spine journal2020

Automated Measurement of Lumbar Lordosis on Radiographs Using Machine Learning and Computer Vision.

Brian H Cho, Deepak Kaji, Zoe B Cheung, Ivan B Ye, Ray Tang, Amy Ahn, Oscar Carrillo, John T Schwartz, Aly A Valliani, Eric K Oermann and 5 more

Abstract read
In one paragraph

Article in Global spine journal, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed, 4 pooled it
–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

37 citing papers in PubMed, 4 syntheses or guidelines pooled it.

  1. Pooled it
  2. Spinopelvic measurements of sagittal balance with deep learning: systematic review and critical evaluation.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
    Pooled it
  3. Artificial Intelligence and Computer Aided Diagnosis in Chronic Low Back Pain: A Systematic Review.International journal of environmental research and public health · 2022
    Pooled it
  4. Artificial Intelligence and Computer Vision in Low Back Pain: A Systematic Review.International journal of environmental research and public health · 2021
    Pooled it
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  10. Development and validation of a deep learning-powered system for multi-version global alignment and proportion score to predict mechanical complications after adult degenerative scoliosis surgery.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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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

15 authors.

Brian H ChoIcahn School of Medicine at Mount Sinai, New York, NY, USA.
Deepak KajiIcahn School of Medicine at Mount Sinai, New York, NY, USA.
Zoe B CheungIcahn School of Medicine at Mount Sinai, New York, NY, USA.
Ivan B YeIcahn School of Medicine at Mount Sinai, New York, NY, USA.
Ray TangIcahn School of Medicine at Mount Sinai, New York, NY, USA.
Amy AhnIcahn School of Medicine at Mount Sinai, New York, NY, USA.
Oscar CarrilloIcahn School of Medicine at Mount Sinai, New York, NY, USA.
John T SchwartzIcahn School of Medicine at Mount Sinai, New York, NY, USA.ORCID https://orcid.org/0000-0003-3682-5605
Aly A VallianiIcahn School of Medicine at Mount Sinai, New York, NY, USA.
Eric K OermannIcahn School of Medicine at Mount Sinai, New York, NY, USA.
Varun ArvindIcahn School of Medicine at Mount Sinai, New York, NY, USA.
Daniel RantiIcahn School of Medicine at Mount Sinai, New York, NY, USA.
Li SunIcahn School of Medicine at Mount Sinai, New York, NY, USA.
Jun S KimIcahn School of Medicine at Mount Sinai, New York, NY, USA.
Samuel K ChoIcahn School of Medicine at Mount Sinai, New York, NY, USA.ORCID https://orcid.org/0000-0001-7511-2486

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

STUDY

designCross sectional database study.

objectiveTo develop a fully automated artificial intelligence and computer vision pipeline for assisted evaluation of lumbar lordosis.

methodsLateral lumbar radiographs were used to develop a segmentation neural network (n = 629). After synthetic augmentation, 70% of these radiographs were used for network training, while the remaining 30% were used for hyperparameter optimization. A computer vision algorithm was deployed on the segmented radiographs to calculate lumbar lordosis angles. A test set of radiographs was used to evaluate the validity of the entire pipeline (n = 151).

resultsThe U-Net segmentation achieved a test dataset dice score of 0.821, an area under the receiver operating curve of 0.914, and an accuracy of 0.862. The computer vision algorithm identified the L1 and S1 vertebrae on 84.1% of the test set with an average speed of 0.14 seconds/radiograph. From the 151 test set radiographs, 50 were randomly chosen for surgeon measurement. When compared with those measurements, our algorithm achieved a mean absolute error of 8.055° and a median absolute error of 6.965° (not statistically significant,

conclusionThis study is the first to use artificial intelligence and computer vision in a combined pipeline to rapidly measure a sagittal spinopelvic parameter without prior manual surgeon input. The pipeline measures angles with no statistically significant differences from manual measurements by surgeons. This pipeline offers clinical utility in an assistive capacity, and future work should focus on improving segmentation network performance.

Indexed as

angle measurementartificial intelligencecomputer-assistedlordosislumbarmachine learningneural networksradiographic image interpretationradiographysagittal balancespinopelvic parameters

Identifiers

PMID32677567
PMCPMC7359685

What OpenQuestion holds

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LicenceCC BY-NC-ND
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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.