AUTHOR=Wang Dongfang , Guo Lirui , Zhong Juan , Yu Huodan , Tang Yadi , Peng Li , Cai Qiuni , Qi Yangzhi , Zhang Dong , Lin Puxuan
TITLE=A novel deep-learning based weighted feature fusion architecture for precise classification of pressure injury
JOURNAL=Frontiers in Physiology
VOLUME=Volume 15 - 2024
YEAR=2024
URL=https://www.frontiersin.org/journals/physiology/articles/10.3389/fphys.2024.1304829
DOI=10.3389/fphys.2024.1304829
ISSN=1664-042X
ABSTRACT=Introduction: Precise classification has an important role in treatment of pressure injury (PI), while current machine-learning or deeplearning based methods of PI classification remain low accuracy.
Methods: In this study, we developed a deeplearning based weighted feature fusion architecture for fine-grained classification, which combines a top-down and bottom-up pathway to fuse high-level semantic information and low-level detail representation. We validated it in our established database that consist of 1,519 images from multi-center clinical cohorts. ResNeXt was set as the backbone network.
Results: We increased the accuracy of stage 3 PI from 60.3% to 76.2% by adding weighted feature pyramid network (wFPN). The accuracy for stage 1, 2, 4 PI were 0.870, 0.788, and 0.845 respectively. We found the overall accuracy, precision, recall, and F1-score of our network were 0.815, 0.808, 0.816, and 0.811 respectively. The area under the receiver operating characteristic curve was 0.940.
Conclusions: Compared with current reported study, our network significantly increased the overall accuracy from 75% to 81.5% and showed great performance in predicting each stage. Upon further validation, our study will pave the path to the clinical application of our network in PI management.