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Fig. 3. | Critical Care

Fig. 3.

From: COVID-19: What Iodine Maps From Perfusion CT can reveal—A Prospective Cohort Study

Fig. 3.

37-year-old male patient, RT-PCR-confirmed COVID-19, 10 days since symptom onset. Admission PaO2/FiO2 ratio was 240 and d-dimer level was 480 ng/mL. Admitted to the intensive care unit, managed with invasive mechanical ventilation. a, c Axial and coronal lung-window chest CT angiography images show multiple foci of ground-glass opacities, with a predominantly subpleural distribution, with areas of apparently healthy lung parenchyma. Vascular dilatation can be seen in relation to areas of ground-glass opacities. b, d 5 mm reconstruction images of subtraction iodine maps in corresponding axial and coronal planes, show areas of severe hypoperfusion in the corresponding apparently healthy lung parenchyma (*), with increased perfusion in areas of ground-glass opacities (white arrows). This patient evolved in a similar fashion to the L (type 1) phenotype described by Gattinoni et al.

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