Joe trained in Cardiothoracic Radiology at the Royal Free and Royal Brompton Hospitals, returning to the Royal Free as a consultant in 2020. He has clinical interests in cardiac CT imaging, lung cancer screening, interstitial lung disease, ambulatory lung biopsy and artificial intelligence.

He holds several nonclinical roles, including: radiology service lead at Barnet and Chase Farm Hospitals, lead for standards and guidelines at the British Society of Cardiothoracic Imaging and is a clinical executive for the North Central London radiology networks primary care electronic ordering project. Joe was formerly editor of European Respiratory Journal Open Research.

GMC number


  • Combination of Bronchoalveolar Lavage and CT Differentiates Progressive and Non-Progressive Fibrotic Lung Diseases. Barnett JL, Maher TM, et al. Am J Respir Crit Care Med. 2023 Sep 6. doi: 10.1164/rccm.202305-0796OC. Online ahead of print. PMID: 37672028
  • 'Long-COVID': a cross-sectional study of persisting symptoms, biomarker and imaging abnormalities following hospitalisation for COVID-19. Mandal S, Barnett J, et al. Thorax. 2021 Apr;76(4):396-398. doi: 10.1136/thoraxjnl-2020-215818.
  • Variable utility of mosaic attenuation to distinguish fibrotic hypersensitivity pneumonitis from idiopathic pulmonary fibrosis. Barnett J, Molyneaux PL et al Eur Respir J. 2019 Jul 25;54(1):1900531. doi: 10.1183/13993003.00531-2019.

Interstitial lung disease, lung cancer.