Privacy Leakage in Federated Learning in Radiology Reports: Comparative Evaluation of Tokenizer and Batch-Size Privacy Risks - Scorecard - MDSpire
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Evaluating Privacy Risks in Federated Learning for Radiology Reports: A Comparison of Tokenizer and Batch Size Vulnerabilities

  • By

  • Santhosh Parampottupadam

  • Andrés Martínez Mora

  • Dimitrios Bounias

  • Sinem Sav

  • Klaus Maier-Hein

  • Ralf Floca

  • September 11, 2026

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Clinical Scorecard: Evaluating Privacy Risks in Federated Learning for Radiology Reports: A Comparison of Tokenizer and Batch Size Vulnerabilities

At a Glance

Category

Detail

Condition

Federated Learning in Radiology

Key Mechanisms

Decentralized machine learning approach retaining sensitive data while allowing collaborative model development.

Target Population

Healthcare institutions utilizing radiology reports.

Care Setting

Medical research and AI applications in radiology.

Key Highlights

  • Federated learning (FL) enhances model robustness while protecting patient data.

  • Inherent vulnerabilities in FL can threaten patient confidentiality.

  • Gradient-inversion attacks can potentially reconstruct sensitive data.

  • Domain-specific tokenizers improve performance in medical NLP tasks.

  • Regulatory frameworks like HIPAA and GDPR impose strict data protection requirements.

Guideline-Based Recommendations

Diagnosis

  • Evaluate the effectiveness of federated learning models in clinical settings, ensuring compliance with applicable regulations.

Management

  • Implement privacy-preserving techniques in federated learning systems to mitigate risks associated with data breaches.

Monitoring & Follow-up

  • Regularly assess vulnerabilities in federated learning frameworks and update protocols to align with evolving compliance standards.

Risks

  • Be aware of potential gradient-inversion attacks and their implications for patient data security, ensuring that mitigation strategies are in place.

Patient & Prescribing Data

Patients whose data may be included in federated learning models should be informed about data usage and privacy measures in accordance with regulatory requirements.

Focus on privacy-preserving methods to enhance data security in AI applications, ensuring compliance with HIPAA and GDPR.

Clinical Best Practices

  • Adopt federated learning to facilitate collaborative research while maintaining data privacy and adhering to regulatory standards.

  • Utilize domain-specific models for improved accuracy in radiology report generation, ensuring compliance with ethical guidelines.

Related Resources & Content

  • Castillo et al. 2021

  • Thirunavukarasu et al. 2023

  • McMahan et al. 2017

  • Brauneck et al. 2023

  • Gu et al. 2022

Original Source(s)

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