Table 1 Publications of studies that met the inclusion criteria, task(s) performed by each model, external validation dataset details and algorithm details for each study

From: Systematic scoping review of external validation studies of AI pathology models for lung cancer diagnosis

Publication Author and Date

Publication Title

Model Task

External Validation Dataset Details

Algorithm Details

Number of samples

Public dataset, or restricted dataset and name of public dataset(s) if used

Number of centres that restricted datasets were taken from and country

Algorithm name

Code availability

Bilaloglu et al. 2019a17

Efficient pan-cancer whole-slide image classification and outlier detection using convolutional neural networks

•Subtyping

•Classification of malignant versus non-malignant tissue

340

Restricted

One academic medical centre in the US

PathCNN

https://github.com/sedab/PathCNN

Borras Ferris et al. 202432

A full pipeline to analyse lung histopathology images

•Subtyping

•Classification of malignant versus non-malignant tissue

1036

Public

TCGA

  

Unavailable

Cao et al. 202318

E2EFP-MIL: End-to-end and high-generalizability weakly supervised deep convolutional network for lung cancer classification from whole slide image

•Subtyping

1583

Restricted

Three hospitals in China

E2EFP-MIL

https://github.com/raycaohmu/E2EFP-MIL

Chen et al. 202219

A whole-slide image (WSI)-based immunohistochemical feature prediction system improves the subtyping of lung cancer

•Subtyping

•Classification of malignant versus non-malignant tissue

•Biomarker identification

299

Restricted

One academic medical centre in China

WIFPS

https://ngdc.cncb.ac.cn/biocode/tools/BT007223

Coudray et al. 201820

Classification and mutation prediction from non–small cell lung cancer histopathology images using deep learning

•Subtyping

•Classification of malignant versus non-malignant tissue

340

Restricted

One academic medical centre in the US

 

https://github.com/ncoudray/DeepPATH

Gertych et al. 201933

Convolutional neural networks can accurately distinguish four histologic growth pattens of lung adenocarcinoma in digital slides

•Classification of malignant versus non-malignant tissue

•Classification of tumour growth pattern

27

Public

TCGA

  

https://github.com/zhaoxuanma/Deeplearning-digital-pathology

Hari et al. 2021a21

Examining batch effect in histopathology as a distributionally robust optimisation problem

•Subtyping

•Classification of malignant versus non-malignant tissue

Unclear

Public

TCGA

Four academic medical centres, one cancer centre and one hospital in the US

ERM model

Unavailable

Kanavati et al. 202034

Weakly-supervised learning for lung carcinoma classification using deep learning

•Classification of malignant versus non-malignant tissue

1670

Public: 1170

Restricted: 500

Mixed

TCGA, TCIA

One hospital in Japan

 

Unavailable

Kanavati et al. 202122

A deep learning model for the classification of indeterminate lung carcinoma in biopsy whole slide images

•Subtyping

•Classification of malignant versus non-malignant tissue

1405

Public:

905

Restricted: 500

Mixed

TCGA

One hospital in Japan

 

Unavailable

Le Page et al. 202123

Using a convolutional neural network for classification of squamous and non-squamous non-small cell lung cancer based on diagnostic histopathology HES images

•Subtyping

65

Restricted

One academic medical centre in France

 

Available from author upon reasonable request

Lu et al. 202124

Data Efficient and Weakly Supervised Computational Pathology on Whole Slide Images

•Subtyping

241

Restricted

One hospital in the US

CLAM

https://github.com/mahmoodlab/CLAM

Mukashyaka et al. 202425

SAMPLER: unsupervised representations for rapid analysis of whole slide tissue images

•Subtyping

Unclear

Public

TCGA, CPTAC

 

SAMPLER

https://figshare.com/articles/software/SAMPLER_basic_code_example/23713404

Noorbakhsh et al. 202026

Deep learning-based cross-classifications reveal conserved spatial behaviours within tumour histological images

•Subtyping

•Classification of malignant versus non-malignant tissue

2115

Public

CPTAC

  

https://github.com/javadnoorb/HistCNN

Quiros et al. 202427

Mapping the landscape of histomorphological cancer phenotypes using self-supervised learning on unannotated pathology slides

•Subtyping

138

Restricted

One academic medical centre in the US

PRL

https://github.com/AdalbertoCq/Histomorphological-Phenotype-Learning

Sakamoto et al. 202235

A collaborative workflow between pathologists and deep learning for the evaluation of tumour cellularity in lung adenocarcinoma

•Classification of malignant versus non-malignant tissue

•Prediction of tumour cellularity

125

Restricted

Two hospitals in Japan

 

Available from author upon reasonable request

Sharma et al. 202431

Optimizing Knowledge Transfer in Sequential Models: Leveraging Residual Connections in Flow Transfer Learning for Lung Cancer Classification

•Classification of malignant versus non-malignant tissue

•Subtyping

566

Public

TCGA

  

Unavailable

Swiderska-Chadaj et al. 202036

A deep learning approach to assess the predominant tumour growth pattern in whole-slide images of lung adenocarcinoma

•Classification of malignant versus non-malignant tissue

•Classification of tumour growth pattern

20

Restricted

One academic medical centre in the Netherlands

DenseNet

Unavailable

Vorontsov et al. 202416

A foundation model for clinical-grade computational pathology and rare cancers detection

•Classification of malignant versus non-malignant tissue

•Biomarker identification

Unclear

Restricted

Unknown

Virchow

https://huggingface.co/paige-ai/Virchow

Wang et al. 201937

ConvPath: A software tool for lung adenocarcinoma digital pathological image analysis aided by a convolutional neural network

•Classification of cell types

130

Restricted

Unknown

ConvPath

https://qbrc.swmed.edu/projects/cnn/

Wang et al. 202328

Deep Learning of Cell Spatial Organizations Identifies Clinically Relevant Insights in Tissue Images

•Subtyping

496

Restricted

Unknown

Ceograph

https://github.com/sdw95927/Ceograph/

Yang et al. 202129

Deep learning-based six-type classifier for lung cancer and mimics from histopathological whole slide images: a retrospective study

•Subtyping

•Classification of malignant versus non-malignant tissue

634

Public:

422

Restricted: 212

Mixed

TCGA

One hospital in China

 

Available from author upon reasonable request

Yu et al. 202030

Classifying non-small cell lung cancer histopathology types and transcriptomic subtypes using convolutional neural networks

•Subtyping

•Classification of malignant versus non-malignant tissue

125

Public

ICGC

  

https://github.com/khyu/lung-CNN

  1. TCGA The Cancer Genome Atlas, TCIA The Cancer Imaging Archive, CPTAC Clinical Proteomic Tumor Analysis Consortium, ICGC International Cancer Genome Consortium.
  2. aPreprint article.