Figure 1.

Computed tomographic scans obtained in a 32-yr-old patient with “patchy” acute respiratory distress syndrome caused by invasive aspergillosis. Contiguous 0.5-cm-thick computed tomographic sections were obtained from the apex to the diaphragm in positive end-expiratory pressure of 10 cmH₂O. As shown by the ARDS viewer, the entire lung is composed of nonaerated (green), poorly aerated (blue), and normally aerated (purple) lung regions. The gas content (GV_CT) is 506.86 ml, and the lung tissue volume (TV_CT) is 1652.71 ml.