| Autor: |
Thomas J Marini, Justin M Weis, Timothy M Baran, Jonah Kan, Steven Meng, Alex Yeo, Yu T Zhao, Robert Ambrosini, Sean Cleary, Deborah Rubens, Mitchell Chess, Benjamin Castaneda, Ann Dozier, Timothy O'Connor, Brian Garra, Katherine Kaproth-Joslin |
| Jazyk: |
angličtina |
| Rok vydání: |
2021 |
| Předmět: |
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| Zdroj: |
BMJ Open Respiratory Research, Vol 8, Iss 1 (2021) |
| Druh dokumentu: |
article |
| ISSN: |
2052-4439 |
| DOI: |
10.1136/bmjresp-2021-000919 |
| Popis: |
Background Respiratory illness is a leading cause of morbidity in adults and the number one cause of mortality in children, yet billions of people lack access to medical imaging to assist in its diagnosis. Although ultrasound is highly sensitive and specific for respiratory illness such as pneumonia, its deployment is limited by a lack of sonographers. As a solution, we tested a standardised lung ultrasound volume sweep imaging (VSI) protocol based solely on external body landmarks performed by individuals without prior ultrasound experience after brief training. Each step in the VSI protocol is saved as a video clip for later interpretation by a specialist.Methods Dyspneic hospitalised patients were scanned by ultrasound naive operators after 2 hours of training using the lung ultrasound VSI protocol. Separate blinded readers interpreted both lung ultrasound VSI examinations and standard of care chest radiographs to ascertain the diagnostic value of lung VSI considering chest X-ray as the reference standard. Comparison to clinical diagnosis as documented in the medical record and CT (when available) were also performed. Readers offered a final interpretation of normal, abnormal, or indeterminate/borderline for each VSI examination, chest X-ray, and CT.Results Operators scanned 102 subjects (0–89 years old) for analysis. Lung VSI showed a sensitivity of 93% and a specificity of 91% for an abnormal chest X-ray and a sensitivity of 100% and a specificity of 93% for a clinical diagnosis of pneumonia. When any cases with an indeterminate rating on chest X-ray or ultrasound were excluded (n=38), VSI lung ultrasound showed 92% agreement with chest X-ray (Cohen’s κ 0.83 (0.68 to 0.97, p |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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