Takeuchi H, et al. - This research was designed to compare iodine concentration in pulmonary ground-glass opacity on iodine density images of contrast-enhanced chest dual-energy computed tomography (DECT) between patients with cardiogenic pulmonary edema (CPE) and acute interstitial lung disease (AILD). In distinguishing CPE and AILD, measurement of iodine concentration in the pulmonary ground-glass opacity of contrast-enhanced chest DECT had the potential.