Evidence map›Paper›PMID 37795140›Full record

ArticleRadiology. Artificial intelligence2023

The Subgroup Imperative: Chest Radiograph Classifier Generalization Gaps in Patient, Setting, and Pathology Subgroups.

Monish Ahluwalia, Mohamed Abdalla, James Sanayei, Laleh Seyyed-Kalantari, Mohannad Hussain, Amna Ali, Benjamin Fine

Open access · greenAbstract read
In one paragraph

Article in Radiology. Artificial intelligence, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
5.3field-weighted citation impact, top 4% 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

17 citing papers in PubMed, 23 citations in OpenAlex.

  1. Review
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  8. Interpretability of AI race detection model in medical imaging with saliency methods.Computational and structural biotechnology journal · 2025
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  9. Review
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  16. AI pitfalls and what not to do: mitigating bias in AI.The British journal of radiology · 2023
    Review
  17. The AI Generalization Gap: One Size Does Not Fit All.Radiology. Artificial intelligence · 2023
    Article
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

7 authors at 2 institutions in 1 country.

Monish AhluwaliaFrom the Kingston Health Sciences Centre, Queen's University, Kingston, Ontario, Canada (M. Ahluwalia); Faculty of Medicine (M. Ahluwalia, J.S.), Institute of Health Policy, Management and Evaluation (M. Ahluwalia), Department of Computer Science (M. Abdalla, L.S.K.), and Department of Medical Imaging (B.F.), University of Toronto, Toronto, Ontario, Canada; Vector Institute for Artificial Intelligence, Toronto, Canada (M. Abdalla, B.F.); Institute for Better Health (M. Abdalla, A.A., B.F.) and Department of Diagnostic Imaging (A.A., B.F.), Trillium Health Partners, 100 Queensway West, Clinical Administrative Building, 6th Floor, Mississauga, ON, Canada L5B 1B8; Department of Medicine, Royal University Hospital, Saskatoon, Saskatchewan, Canada (J.S.); Department of Electrical Engineering and Computer Science, York University, Toronto, Ontario, Canada (L.S.K.); and Techie Maestro, Waterloo, Ontario, Canada (M.H.).ORCID 0000-0002-7122-7857
Mohamed AbdallaFrom the Kingston Health Sciences Centre, Queen's University, Kingston, Ontario, Canada (M. Ahluwalia); Faculty of Medicine (M. Ahluwalia, J.S.), Institute of Health Policy, Management and Evaluation (M. Ahluwalia), Department of Computer Science (M. Abdalla, L.S.K.), and Department of Medical Imaging (B.F.), University of Toronto, Toronto, Ontario, Canada; Vector Institute for Artificial Intelligence, Toronto, Canada (M. Abdalla, B.F.); Institute for Better Health (M. Abdalla, A.A., B.F.) and Department of Diagnostic Imaging (A.A., B.F.), Trillium Health Partners, 100 Queensway West, Clinical Administrative Building, 6th Floor, Mississauga, ON, Canada L5B 1B8; Department of Medicine, Royal University Hospital, Saskatoon, Saskatchewan, Canada (J.S.); Department of Electrical Engineering and Computer Science, York University, Toronto, Ontario, Canada (L.S.K.); and Techie Maestro, Waterloo, Ontario, Canada (M.H.).ORCID 0000-0002-2776-6036
James SanayeiFrom the Kingston Health Sciences Centre, Queen's University, Kingston, Ontario, Canada (M. Ahluwalia); Faculty of Medicine (M. Ahluwalia, J.S.), Institute of Health Policy, Management and Evaluation (M. Ahluwalia), Department of Computer Science (M. Abdalla, L.S.K.), and Department of Medical Imaging (B.F.), University of Toronto, Toronto, Ontario, Canada; Vector Institute for Artificial Intelligence, Toronto, Canada (M. Abdalla, B.F.); Institute for Better Health (M. Abdalla, A.A., B.F.) and Department of Diagnostic Imaging (A.A., B.F.), Trillium Health Partners, 100 Queensway West, Clinical Administrative Building, 6th Floor, Mississauga, ON, Canada L5B 1B8; Department of Medicine, Royal University Hospital, Saskatoon, Saskatchewan, Canada (J.S.); Department of Electrical Engineering and Computer Science, York University, Toronto, Ontario, Canada (L.S.K.); and Techie Maestro, Waterloo, Ontario, Canada (M.H.).ORCID 0000-0002-5855-2137
Laleh Seyyed-KalantariFrom the Kingston Health Sciences Centre, Queen's University, Kingston, Ontario, Canada (M. Ahluwalia); Faculty of Medicine (M. Ahluwalia, J.S.), Institute of Health Policy, Management and Evaluation (M. Ahluwalia), Department of Computer Science (M. Abdalla, L.S.K.), and Department of Medical Imaging (B.F.), University of Toronto, Toronto, Ontario, Canada; Vector Institute for Artificial Intelligence, Toronto, Canada (M. Abdalla, B.F.); Institute for Better Health (M. Abdalla, A.A., B.F.) and Department of Diagnostic Imaging (A.A., B.F.), Trillium Health Partners, 100 Queensway West, Clinical Administrative Building, 6th Floor, Mississauga, ON, Canada L5B 1B8; Department of Medicine, Royal University Hospital, Saskatoon, Saskatchewan, Canada (J.S.); Department of Electrical Engineering and Computer Science, York University, Toronto, Ontario, Canada (L.S.K.); and Techie Maestro, Waterloo, Ontario, Canada (M.H.).ORCID 0000-0002-1059-7125
Mohannad HussainFrom the Kingston Health Sciences Centre, Queen's University, Kingston, Ontario, Canada (M. Ahluwalia); Faculty of Medicine (M. Ahluwalia, J.S.), Institute of Health Policy, Management and Evaluation (M. Ahluwalia), Department of Computer Science (M. Abdalla, L.S.K.), and Department of Medical Imaging (B.F.), University of Toronto, Toronto, Ontario, Canada; Vector Institute for Artificial Intelligence, Toronto, Canada (M. Abdalla, B.F.); Institute for Better Health (M. Abdalla, A.A., B.F.) and Department of Diagnostic Imaging (A.A., B.F.), Trillium Health Partners, 100 Queensway West, Clinical Administrative Building, 6th Floor, Mississauga, ON, Canada L5B 1B8; Department of Medicine, Royal University Hospital, Saskatoon, Saskatchewan, Canada (J.S.); Department of Electrical Engineering and Computer Science, York University, Toronto, Ontario, Canada (L.S.K.); and Techie Maestro, Waterloo, Ontario, Canada (M.H.).ORCID 0009-0007-9973-2998
Amna AliFrom the Kingston Health Sciences Centre, Queen's University, Kingston, Ontario, Canada (M. Ahluwalia); Faculty of Medicine (M. Ahluwalia, J.S.), Institute of Health Policy, Management and Evaluation (M. Ahluwalia), Department of Computer Science (M. Abdalla, L.S.K.), and Department of Medical Imaging (B.F.), University of Toronto, Toronto, Ontario, Canada; Vector Institute for Artificial Intelligence, Toronto, Canada (M. Abdalla, B.F.); Institute for Better Health (M. Abdalla, A.A., B.F.) and Department of Diagnostic Imaging (A.A., B.F.), Trillium Health Partners, 100 Queensway West, Clinical Administrative Building, 6th Floor, Mississauga, ON, Canada L5B 1B8; Department of Medicine, Royal University Hospital, Saskatoon, Saskatchewan, Canada (J.S.); Department of Electrical Engineering and Computer Science, York University, Toronto, Ontario, Canada (L.S.K.); and Techie Maestro, Waterloo, Ontario, Canada (M.H.).
Benjamin FineFrom the Kingston Health Sciences Centre, Queen's University, Kingston, Ontario, Canada (M. Ahluwalia); Faculty of Medicine (M. Ahluwalia, J.S.), Institute of Health Policy, Management and Evaluation (M. Ahluwalia), Department of Computer Science (M. Abdalla, L.S.K.), and Department of Medical Imaging (B.F.), University of Toronto, Toronto, Ontario, Canada; Vector Institute for Artificial Intelligence, Toronto, Canada (M. Abdalla, B.F.); Institute for Better Health (M. Abdalla, A.A., B.F.) and Department of Diagnostic Imaging (A.A., B.F.), Trillium Health Partners, 100 Queensway West, Clinical Administrative Building, 6th Floor, Mississauga, ON, Canada L5B 1B8; Department of Medicine, Royal University Hospital, Saskatoon, Saskatchewan, Canada (J.S.); Department of Electrical Engineering and Computer Science, York University, Toronto, Ontario, Canada (L.S.K.); and Techie Maestro, Waterloo, Ontario, Canada (M.H.).ORCID 0000-0002-1405-8495
University of Toronto · CAQueen's University · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Purpose: To externally test four chest radiograph classifiers on a large, diverse, real-world dataset with robust subgroup analysis. Materials and Methods: In this retrospective study, adult posteroanterior chest radiographs (January 2016-December 2020) and associated radiology reports from Trillium Health Partners in Ontario, Canada, were extracted and de-identified. An open-source natural language processing tool was locally validated and used to generate ground truth labels for the 197 540-image dataset based on the associated radiology report. Four classifiers generated predictions on each chest radiograph. Performance was evaluated using accuracy, positive predictive value, negative predictive value, sensitivity, specificity, F1 score, and Matthews correlation coefficient for the overall dataset and for patient, setting, and pathology subgroups. Results: Classifiers demonstrated 68%-77% accuracy, 64%-75% sensitivity, and 82%-94% specificity on the external testing dataset. Algorithms showed decreased sensitivity for solitary findings (43%-65%), patients younger than 40 years (27%-39%), and patients in the emergency department (38%-60%) and decreased specificity on normal chest radiographs with support devices (59%-85%). Differences in sex and ancestry represented movements along an algorithm's receiver operating characteristic curve. Conclusion: Performance of deep learning chest radiograph classifiers was subject to patient, setting, and pathology factors, demonstrating that subgroup analysis is necessary to inform implementation and monitor ongoing performance to ensure optimal quality, safety, and equity.

Indexed as

Conventional RadiographyConvolutional Neural Network (CNN)EthicsMachine Learning AlgorithmsSupervised LearningThorax

Identifiers

PMID37795140
PMCPMC10546359
OpenAlexW4384070440

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.