Skip to main content
. 2026 Apr 30;38(2):148–176. doi: 10.21147/j.issn.1000-9604.2026.02.03

Table 1. Recent AI applications in lung nodule detection and screening.

Model proposed by studies Finding Reference Year
AI, artificial intelligence; SVM, support vector machine; LASSO, least absolute shrinkage and selection operator; CT, computed tomography; ML, machine learning; LDA, linear discriminant analysis; ANN, artificial neural network; PET, positron emission tomography; CADx, computer-aided diagnosis; CNN, convolutional neural network; LUNA16, Lung Nodule Analysis 2016; DL, deep learning; Res-Net, residual neural network; CMixNet, comprehensive mixed network; DI2IM, deep image-to-image network; RCNN, region-based convolutional neural network; GLCM, Gray Level Co-occurrence Matrices; LCP, lung cancer prediction; NLST, National Lung Screening Test; 18F-FDG, 18F-2’-deoxy-2-fluoro-D-glucose; CXR-LC, lung cancer incidence risk model; EHR, electronic health record; RADS, reporting and data system; LDCT, low-dose CT; AdaBoost, Adaptive Boosting; SNMV, Self-Normalized Multi-View; CAD, computer-aided diagnosis/detection; B-RGS, bates distribution coati optimization; MET, mesenchymal epithelial transformation; 3D-UTE, three-dimensional ultrashort echo time; MRI, magnetic resonance imaging; NSCLC, non-small cell lung cancer; LGBM, light gradient boosting machine; XGBoost, extreme gradient boosting; LR, logistic regression; AUC, area under the receiver operating characteristic curve; 95% CI, 95% confidence interval; CMS, Centers for Medicare & Medicalaid Services; LIDC-IDRI, Lung Image Database Consortium and Image Database Resource Initiative; FP, false positives; MGH, Massachusetts General Hospital; CGMH, Chang Gung Memorial Hospital; LCRAT, Lung Cancer Risk Assessment Tool.
SVM-LASSO model utilizes two CT radiomic features. Predicted malignancy of pulmonary nodules with 84.6% accuracy, outperforming that of Lung-RADS. (39) 2018
Combination of ML techniques SVM and sensor array technique LDA Produced AUCs of 0.91 (95% CI: 0.79−1.00) with LDA and 0.90 (95% CI: 0.80−0.99) with SVM, reflecting strong diagnostic accuracy. (40) 2018
Feed-forward autoencoder-based deep neural network classifier Classified pulmonary nodules with 91.2% accuracy, demonstrating it is a prospective tool for lung cancer detection with prospective validation. (41) 2018
Multi-parameterized ANN based on personal health information In validation set for predicting lung cancer risk, sensitivity was 75.3% (68.9%−81.6%), specificity was 80.6% (80.3%−80.8%), and AUC was 0.86 (0.84−0.89). (42) 2018
Deep neural networks applied to ultralow dose PET scans In automated detection of lung cancer, sensitivity was 91.5% and specificity is 94.2%. (43) 2018
Collaborative CADx system unifying eye-tracking systems and CADx Achieved a classification accuracy of 97% and a 91% average Dice Similarity Coefficient for distinguishing between nodules and non-nodules. (44) 2019
Amalgamated-CNN analyzed with LUNA16 and Ali Tianchi data Sensitivity was 81.7% and 85.1%, with average false positives per scan of 0.125 and 0.25, respectively. (45) 2019
Fusion algorithm combining features learned by 3D deep CNN and handcrafted features Achieved the highest accuracy, AUC, specificity, and sensitivity within all competitive classification models. (46) 2019
DL model utilizing CMixNet architectures in conjunction with clinical factors Achieved 94% sensitivity and 91% specificity, which is better than existing methods. (47) 2019
In-house-deployed AI algorithms complexes consist of DI2IN, region growing, and faster RCNN. Facilitated reliable 3D segmentation and detection of T1/T2 lung tumors on FDG-PET/CTs (48) 2019
GLCM technique GLCM features are accurate in predicting lung tumors, albeit at a slower rate than histogram features. (49) 2019
LCP-CNN Achieved an AUC of 89.6% and yielded only one false negative with 234 nodules in 229 patients (19.3%) when using the predefined thresholds. (50) 2019
DL-based AI algorithm for detecting lung cancer and pulmonary nodules on chest radiographs using data from NLST Outperformed NLST radiologists in detecting pulmonary nodules on digital radiographs. (51) 2020
A DL algorithm using pre-trained Res-Net to automatically identify small 18F-FDG-avid pulmonary nodules in PET scans Accurately identified small 18F-FDG-avid pulmonary nodules, supporting automated clinical PET/CT interpretation. (52) 2020
A fusion CNN (CXR-LC) using EHRs Predicted incident lung cancer with high discrimination than CMS eligibility (AUC: 0.755 vs. 0.634). (53) 2020
A radiomics model applied LASSO feature selection and score calculation, followed by multivariate logistic regression to construct a classification model and nomogram. Achieved AUCs of 0.836 and 0.809 in training cohort and validation cohorts, respectively to classify benign and malignant pulmonary nodules. (54) 2020
An AI-CNN prototype (Siemens Healthiness, AI-RAD Companion) to detect pulmonary nodules on LDCT The agreement between the AI findings and experts was excellent (lung nodules Cohen’s kappa=0.846), with 0.99 sensitivity and 0.708 specificity. (55) 2021
Fusion CNN integrating four advanced object detectors Malignancy risk prediction accuracy was slightly lower than the performance of the observers, but the model is useful for assisting less experienced radiologists. (56) 2021
Innovative model called AdaBoost-SNMV-CNN Achieved 0.93 sensitivity, 0.92 accuracy, and 0.92 specificity for lung nodules detection and outperformed the majority of the models based on LIDC-IDRI dataset. (57) 2022
Open-source DL tool (CXR-LC) based on X-ray images and common EHRs Identified individuals at elevated risk who are potential candidates for lung cancer screening CT. (58) 2022
A DL-based CAD system developed for a Chinese low-dose CT lung cancer screening program For lung nodule detection independent of size or type, sensitivity was 90.1% with 1.0 FP/scan, compared with 76.0% and 0.04 FP/scan for double reading (P=0.001). (59) 2022
An optimized early warning model for lung cancer risk (OWL) based on XGBoost algorithm Demonstrated robust accuracy and clinical utility for identifying individuals at high risk of lung cancer. (60) 2023
The Sybil model, trained on NLST LDCTs, requires only one scan and no annotations, enabling real-time use on radiology stations. AUCs were 0.92 (NLST), 0.86 (MGH), and 0.94 (CGMH) for 1-year lung cancer prediction. (61) 2023
Recalibrated LCP-CNN Predicted 1-year lung cancer risk with an AUC of 0.87, exceeding that of LCRAT+CT (0.79) or Lung-RADS (0.69). It showed the highest accuracy for 1-year risk prediction and the lowest likelihood of delayed diagnosis under biennial screening. (62) 2023
An advanced lung cancer risk prediction model using transfer learning (PResNet classifier) and a modified B-RGS algorithm Achieved 98.2% accuracy, 98.7% precision, and 97.5% recall rates, which is comparable to other state-of-the-art methods. (63) 2024
A CT-based deep learning model, METnet, employs grouped convolution blocks to predict MET dysregulation. Predicted MET dysregulation with 0.746 accuracy and an AUC of 0.793. The method could potentially aid precise diagnosis and therapy at the molecular scale with prospective validation. (64) 2024
A random forest model combing 18F FDG-PET and 3D-UTE MRI to assess lymph node status in NSCLC Achieved AUCs of 0.912 and 0.791 in the training and test sets, respectively, demonstrating different degrees of improvement over individual models. (65) 2024
An ML model based on a dynamic ensemble model for lung cancer detection, which combines four classification models: LGBM, XGBoost, LR, and SVM. Achieved 76.2% sensitivity, an AUC of 0.77, and 63.8% specificity in 9,940 samples, outperforming five pulmonologists with a sensitivity of 67.4% and a specificity of 70.3%. (66) 2024
A model for early detection of lung cancer in primary care using ML with deep ‘transformer’ models on EHR data Achieved an AUC of 0.924 with a positive predictive value of 3.6% and 96.6% sensitivity based on three years of data. (35) 2024