Cited by 34Radiomics and Machine Learning in Medical ImagingOsteoarthritis Treatment and MechanismsMedical Image Segmentation Techniques

Prediction model for knee osteoarthritis using magnetic resonance–based radiomic features from the infrapatellar fat pad: data from the osteoarthritis initiative

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Yu, Keyan, Ying, Jia, Zhao, Tianyun, Lei, Lan, Zhong, Lijie, Hu, Jiaping, Zhou, Juin W., Huang, Chuan +1 more·2023·Quantitative Imaging in Medicine and Surgery

Abstract

Background: The infrapatellar fat pad (IPFP) plays an important role in the incidence of knee osteoarthritis (OA). Magnetic resonance (MR) signal heterogeneity of the IPFP is related to pathologic changes. In this study, we aimed to investigate whether the IPFP radiomic features have predictive value for incident radiographic knee OA (iROA) 1 year prior to iROA diagnosis. Methods: Data used in this work were obtained from the osteoarthritis initiative (OAI). In this study, iROA was defined as a knee with a baseline Kellgren-Lawrence grade (KLG) of 0 or 1 that further progressed to KLG ≥2 during the follow-up visit. Intermediate-weighted turbo spin-echo knee MR images at the time of iROA diagnosis and 1 year prior were obtained. Five clinical characteristics-age, sex, body mass index, knee injury history, and knee surgery history-were obtained. A total of 604 knees were selected and matched (302 cases and 302 controls). A U-Net segmentation model was independently trained to automatically segment the IPFP. The prediction models were established in the training set (60%). Three main models were generated using (I) clinical characteristics; (II) radiomic features; (III) combined (clinical plus radiomic) features. Model performance was evaluated in an independent testing set (remaining 40%) using the area under the curve (AUC). Two secondary models were also generated using Hoffa-synovitis scores and clinical characteristics. Results: The comparison between the automated and manual segmentations of the IPFP achieved a Dice coefficient of 0.900 (95% CI: 0.891-0.908), which was comparable to that of experienced radiologists. The radiomic features model and the combined model yielded superior AUCs of 0.700 (95% CI: 0.630-0.763) and 0.702 (95% CI: 0.635-0.763), respectively. The DeLong test found no statistically significant difference between the receiver operating curves of the radiomic and combined models (P=0.831); however, both models outperformed the clinical model (P=0.014 and 0.004, respectively). Conclusions: Our results demonstrated that radiomic features of the IPFP are predictive of iROA 1 year prior to the diagnosis, suggesting that IPFP radiomic features can serve as an early quantitative prediction biomarker of iROA.

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  • Molecular imaging techniques such as PET, SPECT, optical imaging, and contrast-enhanced MRI are revolutionizing degenerative joint disease assessment by visualizing specific biological processes at molecular and cellular levels, surpassing traditional anatomical imaging.

    “Molecular imaging techniques, such as positron emission tomography (PET), single-photon emission computed tomography (SPECT), optical imaging, and contrast-enhanced MRI, are revolutionizing degenerative joint disease assessment by visualizing specific biological processes at molecular and cellular levels, surpassing traditional anatomical imaging [163,164,165].”

    From Biomarker-Guided Imaging and AI-Augmented Diagnosis of Degenerative Joint Disease (2025) · cites this paper as [164]

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  1. [32]P KD, Ba J. Adam: A method for stochastic optimization. arXiv preprint arXiv 2014:1421.6980.

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Authors
Yu, K., Ying, J., Zhao, T., Lei, L., Zhong, L., Hu, J., Zhou, J. W., Huang, C., & Zhang, X.
Affiliations
  • Third Affiliated Hospital of Southern Medical University (CN)
  • Stony Brook University (US)
  • Northside Hospital (US)
  • Stony Brook Medicine (US)
Corresponding author
  • Huang, Chuan
  • Zhang, Xiaodong
Venue
Quantitative Imaging in Medicine and Surgery
Published
2023-01
Volume
13
Issue
1
Pages
352-369
ISSN
  • 2223-4292 (ISSN-L)
  • 2223-4306
OpenAlex
W4313456974
Cited by
34
References
61
Citations by year
2026: 8 · 2025: 15 · 2024: 7 · 2023: 3 · 2022: 1
FWCI
3.70
Type
journal article
Language
en
Open access
Licence
cc-by-nc-nd
Locations
  • Quantitative Imaging in Medicine and Surgery (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
Funders
Southern Medical University
Topics
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Radiomics and Machine Learning in Medical Imaging
  • Health Sciences › Medicine › Rheumatology › Osteoarthritis Treatment and Mechanisms
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Medical Image Segmentation Techniques
Keywords
knee osteoarthritis, infrapatellar fat pad, radiomics, magnetic resonance imaging, prediction model, U-Net segmentation, Kellgren-Lawrence grade, Osteoarthritis Initiative, clinical risk factors, body mass index, knee injury history

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