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Updated: Dec 25, 2025

Author Spotlight: Point-of-Care Ultrasound for Gastric Content Assessment and Risk Stratification in Perioperative Care
Published on: September 22, 2023
Chronic gastritis classification using gastric X-ray images with a semi-supervised learning method based on
Zongyao Li1, Ren Togo2, Takahiro Ogawa2
1Graduate School of Information Science and Technology, Hokkaido University, N-14, W-9, Kita-ku, Sapporo, 060-0814, Japan. li@lmd.ist.hokudai.ac.jp.
This study introduces a semi-supervised learning method for chronic gastritis classification using gastric X-ray images. The approach effectively uses unannotated data to improve diagnostic accuracy when labeled data is limited.
Area of Science:
- Medical Imaging Analysis
- Artificial Intelligence in Medicine
- Computational Pathology
Background:
- High-quality annotations for medical images are expensive and limited, hindering deep learning applications.
- Insufficient annotated data is a significant challenge in medical image analysis for disease classification.
Purpose of the Study:
- To develop a semi-supervised learning method for chronic gastritis classification using gastric X-ray images.
- To leverage unannotated data to improve classification performance with limited annotated data.
Main Methods:
- A semi-supervised learning approach based on tri-training was employed.
- A novel learning technique, Between-Class (BC) learning, was integrated to enhance performance.
- The method was applied to chronic gastritis classification using gastric X-ray images.
Main Results:
- The proposed semi-supervised method effectively utilizes unannotated data.
- Integration of BC learning significantly boosted the performance of the semi-supervised method.
- High diagnostic accuracy for chronic gastritis was achieved.
Conclusions:
- Semi-supervised learning, particularly with BC learning, is a viable strategy to overcome data scarcity in medical image analysis.
- The developed method offers a promising approach for accurate chronic gastritis diagnosis using gastric X-ray images.
- This technique can improve the efficiency and effectiveness of deep learning models in medical diagnostics.
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