Nodule candidate detection algorithm based on deep learning

VernacularTitle:基于深度学习的候选结节检测算法
Author: Caidi ZHANG ¹ ; Yueyang LI ; Fangzheng CUI ; Haichi LUO ; Zhongxuan GU
Author Information

1. 江南大学附属医院呼吸内科,江苏无锡 214122
Keywords: nodule candidate detection; computer-aided detection; strengthen coordinate attention module; sphere based loss function
From: Chinese Journal of Medical Physics 2024;41(9):1177-1184
CountryChina
Language:Chinese
Abstract: A nodule candidate detection algorithm based on 3DSCANet utilizing deep learning techniques is proposed to improve nodule candidate detection performance.The algorithm employs a strengthen coordinate attention(SCA)module which improves upon the basic coordinate attention mechanism to enable it to extract three-dimensional(3D)features,and incorporates adaptive convolution to extract cross-channel features,thereby enhancing the feature extraction capability of the SCA mechanism.Additionally,a method to convert 3D rectangular anchor boxes into 3D spheres is proposed,along with the introduction of a sphere based intersection over union loss function(SIoUX)to fully leverage the morphological characteristics of lung nodules which are spherical in shape.During the experimental phase,the method is tested on the LUNA16 dataset using ten-fold cross-validation,and it achieves an average recall rate of 0.94.