FIGURE 2

Volume-rendered images of chest computed tomography scans from two different patients with COVID-19, with colour-coded segmentation of the pulmonary vascular cross-sectional area. BV5%: percentage of blood volume in vessels with a cross-sectional area between 1.25 and 5 mm² relative to the total pulmonary blood volume. a) Patient with BV5% of 21%. b) Patient with BV5% of 55%. Colour coding denotes blood volume in vessels with a cross-sectional area between 1.25 and 5 mm² (BV5%), between 5 and 10 mm² (BV5–10%) and >10 mm² (BV10%).