• Clausdorff FiedlerHansHSección de Medicina de Urgencia, Pontificia Universidad Católica de Chile, Santiago, Chile. Electronic address: hjclausd@uc.cl., Ross Prager, Delaney Smith, Derek Wu, Chintan Dave, Jared Tschirhart, Ben Wu, Blake Van Berlo, Richard Malthaner, and Robert Arntfield.
• Sección de Medicina de Urgencia, Pontificia Universidad Católica de Chile, Santiago, Chile. Electronic address: hjclausd@uc.cl.
• Chest. 2024 Aug 1; 166 (2): 362370362-370.

BackgroundRapid evaluation for pneumothorax is a common clinical priority. Although lung ultrasound (LUS) often is used to assess for pneumothorax, its diagnostic accuracy varies based on patient and provider factors. To enhance the performance of LUS for pulmonary pathologic features, artificial intelligence (AI)-assisted imaging has been adopted; however, the diagnostic accuracy of AI-assisted LUS (AI-LUS) deployed in real time to diagnose pneumothorax remains unknown.Research QuestionIn patients with suspected pneumothorax, what is the real-time diagnostic accuracy of AI-LUS to recognize the absence of lung sliding?Study Design And MethodsWe performed a prospective AI-assisted diagnostic accuracy study of AI-LUS to recognize the absence of lung sliding in a convenience sample of patients with suspected pneumothorax. After calibrating the model parameters and imaging settings for bedside deployment, we prospectively evaluated its diagnostic accuracy for lung sliding compared with a reference standard of expert consensus.ResultsTwo hundred forty-one lung sliding evaluations were derived from 62 patients. AI-LUS showed a sensitivity of 0.921 (95% CI, 0.792-0.973), specificity of 0.802 (95% CI, 0.735-0.856), area under the receiver operating characteristic curve of 0.885 (95% CI, 0.828-0.956), and accuracy of 0.824 (95% CI, 0.766-0.870) for the diagnosis of absent lung sliding.InterpretationIn this study, real-time AI-LUS showed high sensitivity and moderate specificity to identify the absence of lung sliding. Further research to improve model performance and optimize the integration of AI-LUS into existing diagnostic pathways is warranted.Copyright © 2024 American College of Chest Physicians. Published by Elsevier Inc. All rights reserved.

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