期刊
CANCERS
卷 15, 期 5, 页码 -出版社
MDPI
DOI: 10.3390/cancers15051535
关键词
prostate cancer; Gleason score; ISUP score; digital pathology; deep learning; label distribution learning
类别
This study aimed to develop and evaluate an automatic prediction system for grading histopathological images of prostate cancer using a deep learning model and label distribution learning (LDL). Results showed that LDL improved the diagnostic performance of the automatic prediction system for cancer grading.
Simple Summary We aimed to develop and evaluate an automatic prediction system for grading histopathological images of prostate cancer using a deep learning model and label distribution learning. Our results show that the label distribution learning improved the diagnostic performance of the automatic prediction system for the cancer grading. We aimed to develop and evaluate an automatic prediction system for grading histopathological images of prostate cancer. A total of 10,616 whole slide images (WSIs) of prostate tissue were used in this study. The WSIs from one institution (5160 WSIs) were used as the development set, while those from the other institution (5456 WSIs) were used as the unseen test set. Label distribution learning (LDL) was used to address a difference in label characteristics between the development and test sets. A combination of EfficientNet (a deep learning model) and LDL was utilized to develop an automatic prediction system. Quadratic weighted kappa (QWK) and accuracy in the test set were used as the evaluation metrics. The QWK and accuracy were compared between systems with and without LDL to evaluate the usefulness of LDL in system development. The QWK and accuracy were 0.364 and 0.407 in the systems with LDL and 0.240 and 0.247 in those without LDL, respectively. Thus, LDL improved the diagnostic performance of the automatic prediction system for the grading of histopathological images for cancer. By handling the difference in label characteristics using LDL, the diagnostic performance of the automatic prediction system could be improved for prostate cancer grading.
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