The 3D simulation model of the lung was established by using the reconstruction method. A computer aided pulmonary nodule detection model was constructed. The process iterates over the images to refine the lung nodule recognition model based on neural networks. It is integrated with 3D virtual modeling technology to improve the interactivity of the system, so as to achieve intelligent recognition of lung nodules. A 3D RCNN (Region-based Convolutional Neural Network) was utilized for feature extraction and nodule identification. The LUNA16 large sample database was used as the research dataset. FROC (Free-response Receiver Operating Characteristic) analysis was applied to evaluate the model, calculating sensitivity at various false positive rates to derive the average FROC. Compared with conventional diagnostic methods, the recognition rate was significantly improved. This technique facilitates the detection of pulmonary abnormalities at an initial phase, which holds immense value for the prompt diagnosis of lung malignancies.

利用重建方法建立了肺部的3D仿真模型，构建了计算机辅助肺结节检测模型，并基于神经网络对图像进行迭代处理以优化肺结节识别模型。该模型与3D虚拟建模技术结合，提高了系统的交互性，以实现肺结节的智能识别。利用LUNA16大样本数据库作为研究数据集，采用FROC分析评估模型性能，计算不同虚警率下的灵敏度来得出平均FROC。与传统诊断方法相比，该技术可显著提高识别率，有助于在早期阶段检测肺部异常，对及时诊断肺癌具有巨大价值。

计算机深度学习模型在肺结节诊断中的应用