What is the role of CT scanning in the evaluation of cardiogenic pulmonary edema (CPE)?

Updated: Jul 23, 2020
  • Author: Ali A Sovari, MD, FACP, FACC; Chief Editor: Gyanendra K Sharma, MD, FACC, FASE  more...
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Answer

Chest CT scanning may be a useful tool for differentiating CPE from acute respiratory distress syndrome (ARDS) in the emergency department setting, with an overall 88.5% accuracy of diagnosis. [1] Chest CT scan features with a high positive predictive value (PPV) and moderate negative predictive value (NPV) for CPE appear to include the presence of ground glass attenuation predominantly in the upper lobe or central region as well as central-airspace consolidation. CT scan characteristics with relatively high PPVs and NPVs for ARDS include left-dominant pleural effusion and small, ill-defined opacities. [1]


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