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Bioengineering
Special Issues
Artificial Intelligence-Based Medical Imaging Processing
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Artificial Intelligence-Based Medical Imaging Processing

A special issue of Bioengineering (ISSN 2306-5354). This special issue belongs to the section "Biosignal Processing".

Deadline for manuscript submissions: 31 July 2025 | Viewed by 1149

Special Issue Editors

Dr. Xin Meng

E-Mail Website
Guest Editor
Department of Radiology, University of Pittsburgh, Pittsburgh, PA 15213, USA
Interests: artificial intelligence; medical imaging; computed tomography; computer aided detection; radiomics
Dr. Yuxiang Zhou

E-Mail Website
Guest Editor
Department of Radiology, Mayo Clinic at Arizona, Phoenix, AZ 85054, USA
Interests: image; MRI; PET; artificial intelligence; safety; medicine
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

We are pleased to announce a Special Issue of the Journal of Bioengineering on "Artificial Intelligence-Based Medical Imaging Processing". This issue aims to highlight groundbreaking advancements, address emerging challenges, and explore the transformative potential of AI in medical imaging, a field that is revolutionizing diagnostics, improving clinical efficiency, and enabling more personalized care. As AI technologies continue to evolve, they hold the potential to reshape the future of healthcare delivery by offering faster, more accurate, and data-driven insights.

AI technologies, such as deep learning, machine learning, and radiomics, are fundamentally changing the way complex imaging data is analyzed. These innovations are paving the way for enhanced disease detection, better risk assessment, and more effective treatment planning. However, significant challenges remain in fully realizing their potential. Key issues include improving the interpretability of AI models, ensuring resilience against biases, addressing data scarcity and diversity, and integrating these technologies seamlessly into clinical workflows. Overcoming these hurdles is critical to ensuring that AI technologies are both effective and equitable in real-world healthcare settings.

This Special Issue welcomes research contributions that focus on AI-driven disease detection and prediction across diverse imaging modalities. We are particularly interested in studies that explore the development of novel AI technologies and quantitative methods for precision medicine. Additionally, we encourage research that addresses the ethical and practical challenges of AI adoption, including enhancing model transparency, reducing disparities in healthcare outcomes, and building trust among clinicians and patients in AI systems.

We invite submissions from researchers, clinicians, and industry professionals that contribute original research, comprehensive reviews, or insightful case studies. By advancing the science of AI in medical imaging, we hope to foster innovation and collaboration across disciplines to tackle the challenges and harness the full potential of AI in healthcare.

Dr. Xin Meng
Dr. Yuxiang Zhou
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Bioengineering is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • artificial intelligence
  • medical imaging
  • disease detection and prediction
  • quantitative analysis
  • clinical integration
  • bias resilience
  • model transparency
  • precision medicine

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Published Papers (1 paper)

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Research

15 pages, 8698 KiB  
Article
Geometric Self-Supervised Learning: A Novel AI Approach Towards Quantitative and Explainable Diabetic Retinopathy Detection
by Lucas Pu, Oliver Beale and Xin Meng
Bioengineering 2025, 12(2), 157; https://doi.org/10.3390/bioengineering12020157 - 6 Feb 2025
Viewed by 872
Abstract
Background: Diabetic retinopathy (DR) is the leading cause of blindness among working-age adults. Early detection is crucial to reducing DR-related vision loss risk but is fraught with challenges. Manual detection is labor-intensive and often misses tiny DR lesions, necessitating automated detection. Objective: We [...] Read more.
Background: Diabetic retinopathy (DR) is the leading cause of blindness among working-age adults. Early detection is crucial to reducing DR-related vision loss risk but is fraught with challenges. Manual detection is labor-intensive and often misses tiny DR lesions, necessitating automated detection. Objective: We aimed to develop and validate an annotation-free deep learning strategy for the automatic detection of exudates and bleeding spots on color fundus photography (CFP) images and ultrawide field (UWF) retinal images. Materials and Methods: Three cohorts were created: two CFP cohorts (Kaggle-CFP and E-Ophtha) and one UWF cohort. Kaggle-CFP was used for algorithm development, while E-Ophtha, with manually annotated DR-related lesions, served as the independent test set. For additional independent testing, 50 DR-positive cases from both the Kaggle-CFP and UWF cohorts were manually outlined for bleeding and exudate spots. The remaining cases were used for algorithm training. A multiscale contrast-based shape descriptor transformed DR-verified retinal images into contrast fields. High-contrast regions were identified, and local image patches from abnormal and normal areas were extracted to train a U-Net model. Model performance was evaluated using sensitivity and false positive rates based on manual annotations in the independent test sets. Results: Our trained model on the independent CFP cohort achieved high sensitivities for detecting and segmenting DR lesions: microaneurysms (91.5%, 9.04 false positives per image), hemorrhages (92.6%, 2.26 false positives per image), hard exudates (92.3%, 7.72 false positives per image), and soft exudates (90.7%, 0.18 false positives per image). For UWF images, the model’s performance varied by lesion size. Bleeding detection sensitivity increased with lesion size, from 41.9% (6.48 false positives per image) for the smallest spots to 93.4% (5.80 false positives per image) for the largest. Exudate detection showed high sensitivity across all sizes, ranging from 86.9% (24.94 false positives per image) to 96.2% (6.40 false positives per image), though false positive rates were higher for smaller lesions. Conclusions: Our experiments demonstrate the feasibility of training a deep learning neural network for detecting and segmenting DR-related lesions without relying on their manual annotations. Full article
(This article belongs to the Special Issue Artificial Intelligence-Based Medical Imaging Processing)
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