Sun Chao, Ni Jun, Liu Jianhe, Li Huafeng, Tao Dapeng
School of Information, Yunnan University, Kunming 650500, P. R. China.
Department of Urology, The Second Affiliated Hospital of Kunming Medical University, Kunming 650500, P. R. China.
Sheng Wu Yi Xue Gong Cheng Xue Za Zhi. 2024 Dec 25;41(6):1213-1220. doi: 10.7507/1001-5515.202310043.
Currently, the types of kidney stones before surgery are mainly identified by human beings, which directly leads to the problems of low classification accuracy and inconsistent diagnostic results due to the reliance on human knowledge. To address this issue, this paper proposes a framework for identifying types of kidney stones based on the combination of radiomics and deep learning, aiming to achieve automated preoperative classification of kidney stones with high accuracy. Firstly, radiomics methods are employed to extract radiomics features released from the shallow layers of a three-dimensional (3D) convolutional neural network, which are then fused with the deep features of the convolutional neural network. Subsequently, the fused features are subjected to regularization, least absolute shrinkage and selection operator (LASSO) processing. Finally, a light gradient boosting machine (LightGBM) is utilized for the identification of infectious and non-infectious kidney stones. The experimental results indicate that the proposed framework achieves an accuracy rate of 84.5% for preoperative identification of kidney stone types. This framework can effectively distinguish between infectious and non-infectious kidney stones, providing valuable assistance in the formulation of preoperative treatment plans and the rehabilitation of patients after surgery.
目前,肾结石术前类型主要依靠人工识别,这直接导致了由于依赖人类知识而出现分类准确率低和诊断结果不一致的问题。为解决这一问题,本文提出了一种基于放射组学和深度学习相结合的肾结石类型识别框架,旨在实现高精度的肾结石术前自动分类。首先,采用放射组学方法从三维(3D)卷积神经网络浅层提取放射组学特征,然后将其与卷积神经网络的深层特征融合。随后,对融合后的特征进行正则化、最小绝对收缩和选择算子(LASSO)处理。最后,利用轻量级梯度提升机(LightGBM)对感染性和非感染性肾结石进行识别。实验结果表明,所提出的框架在肾结石类型术前识别方面的准确率达到了84.5%。该框架能够有效区分感染性和非感染性肾结石,为术前治疗方案的制定和患者术后康复提供有价值的帮助。