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. 2020 Mar 30;2(2):e200107. doi: 10.1148/ryct.2020200107

Figure 1c:

Coronal CT (a) volume/polygonal rendering, (b) anteroposterior projection image, (c) and anteroposterior chest radiograph (d) in a 55-year-old male patient with coronavirus disease 2019 pneumonia. (a) Coronal CT image shows multiple mixed ground-glass opacities in both lungs. The boundaries of the pulmonary opacities are shown in color (right upper lobe, green; left upper lobe, blue, both lower lobes, red). Pneumonia involved 19.8% of the lung parenchymal area and the quantitative CT opacity mass was 420.7 g. The mean CT attenuation of pneumonia was −309.8 HU ± 63.2. (b) A volume/polygonal rendering three-dimensional image shows multiple opacity masks (white) in the mask of the right and left lobes (black boundary). (c) An anteroposterior projection image shows multiple opacity masks in color that are overlaid on the right and left lobes in grayscale. The opacities involved 57.2% of the lung parenchymal area on the projected image. (d) An anteroposterior chest radiograph shows multiple peripheral consolidation opacities in both lungs; 55.8% of the opacity masks in the projected image could be seen on the chest radiograph.

Coronal CT (a) volume/polygonal rendering, (b) anteroposterior projection image, (c) and anteroposterior chest radiograph (d) in a 55-year-old male patient with coronavirus disease 2019 pneumonia. (a) Coronal CT image shows multiple mixed ground-glass opacities in both lungs. The boundaries of the pulmonary opacities are shown in color (right upper lobe, green; left upper lobe, blue, both lower lobes, red). Pneumonia involved 19.8% of the lung parenchymal area and the quantitative CT opacity mass was 420.7 g. The mean CT attenuation of pneumonia was −309.8 HU ± 63.2. (b) A volume/polygonal rendering three-dimensional image shows multiple opacity masks (white) in the mask of the right and left lobes (black boundary). (c) An anteroposterior projection image shows multiple opacity masks in color that are overlaid on the right and left lobes in grayscale. The opacities involved 57.2% of the lung parenchymal area on the projected image. (d) An anteroposterior chest radiograph shows multiple peripheral consolidation opacities in both lungs; 55.8% of the opacity masks in the projected image could be seen on the chest radiograph.