The International Association for the Study of Lung Cancer Early Lung Imaging Confederation Open-Source Deep Learning and Quantitative Measurement Initiative

Stephen Lam, Murry W. Wynes, Casey Connolly, Kazuto Ashizawa, Sukhinder Atkar-Khattra, Chandra P. Belani, Domenic DiNatale, Claudia I. Henschke, Bruno Hochhegger, Claudio Jacomelli, Małgorzata Jelitto, Artit Jirapatnakul, Karen L. Kelly, Karthik Krishnan, Takeshi Kobayashi, Jacqueline Logan, Juliane Mattos, John Mayo, Annette McWilliams, Tetsuya MitsudomiUgo Pastorino, Joanna Polańska, Witold Rzyman, Ricardo Sales dos Santos, Giorgio V. Scagliotti, Heather Wakelee, David F. Yankelevitz, John K. Field, James L. Mulshine, Ricardo Avila

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


Introduction: With global adoption of computed tomography (CT) lung cancer screening, there is increasing interest to use artificial intelligence (AI) deep learning methods to improve the clinical management process. To enable AI research using an open-source, cloud-based, globally distributed, screening CT imaging data set and computational environment that are compliant with the most stringent international privacy regulations that also protect the intellectual properties of researchers, the International Association for the Study of Lung Cancer sponsored development of the Early Lung Imaging Confederation (ELIC) resource in 2018. The objective of this report is to describe the updated capabilities of ELIC and illustrate how this resource can be used for clinically relevant AI research. Methods: In this second phase of the initiative, metadata and screening CT scans from two time points were collected from 100 screening participants in seven countries. An automated deep learning AI lung segmentation algorithm, automated quantitative emphysema metrics, and a quantitative lung nodule volume measurement algorithm were run on these scans. Results: A total of 1394 CTs were collected from 697 participants. The LAV950 quantitative emphysema metric was found to be potentially useful in distinguishing lung cancer from benign cases using a combined slice thickness more than or equal to 2.5 mm. Lung nodule volume change measurements had better sensitivity and specificity for classifying malignant from benign lung nodules when applied to solid lung nodules from high-quality CT scans. Conclusions: These initial experiments revealed that ELIC can support deep learning AI and quantitative imaging analyses on diverse and globally distributed cloud-based data sets.

Original languageEnglish
Pages (from-to)94-105
Number of pages12
JournalJournal of Thoracic Oncology
Issue number1
StatePublished - Jan 2024


  • Artificial intelligence
  • Deep learning
  • Emphysema
  • Lung cancer screening
  • Nodule detection
  • Nodule volume measurement


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