Collaborative European research in bronchiectasis 

The European Bronchiectasis Registry (EMBARC) is one of the largest real-world bronchiectasis datasets globallycontaining data from over 20,000 patients across more than 30 countries. This robust infrastructure supports international research and clinical trials, where AI-based imaging plays an important role in uncovering deeper disease phenotyping and mechanistic disease insights. 

Through collaborative initiatives with study sponsors, Thirona has been providing quantitative CT analysis and was invited to participate in the imaging arm of the EMBARC-BRIDGE sub-study, supported by Chiesi Pharmaceuticals.  

EMBARC-BRIDGE is a mechanistic initiative study in bronchiectasis, initiated to delineate underlying disease mechanisms and to identify molecular endotypes and phenotypes of bronchiectasis by merging imaging metrics with biological data. 

 

Project highlights

  • Over 600 thoracic CT scans analyzed using advanced AI-based methods, with further analyses currently in progress

  • Integration of quantitative imaging biomarkers into the EMBARC registry, enhancing clinical data with objective structural CT metrics

  • Mechanistic study on EMBARC-BRIDGE sub-population to analyze 800-100scanpending 

Contribution by Thirona

Thirona provides advanced quantitative CT analysis to deliver imaging-based insights and to help phenotype structural changes across both airways and lung parenchyma. Key measurements include: 

  • Bronchial Analysis: Airway count, bronchial tapering, bronchial wall thickening, and bronchus-to-artery (BA) ratios 
  • Mucus plugs assessment: Mucus plug count and volume 
  • Parenchymal quantification: Lung tissue density and low attenuation area 

 

Relevant Publications

November 2025

Lobar differences on chest CTs of bronchiectasis patients from the EMBARC registry

October 2024

Automatic analysis of bronchus-artery ratios and mucus plugs of 640 chest CTs of EMBARC bronchiectasis patients

May 2024

Fully Automatic Analysis of Bronchus-artery Dimensions and Ratios of 625 Chest CTS of Bronchiectasis Patients Participating in the EMBARC Registry

October 2023

The relationship between chest CT scoring, aetiology and severity of disease in Bronchiectasis: an EMBARC analysis

October 2023

The spectrum of structural lung changes in bronchiectasis: Analysis of 524 EMBARC CTs.

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