... ultrasonic picture (B-scan) directly 2. 2 Ultrasonic Findings 23 Fig 2. 1 Acute colitis Segment of the descending colon Power Doppler shows multiple color pixels in the wall, indicating (in ammatory) ... (Fig 2. 2, 2. 28, 2. 49) Serous exudates can be seen easily as echo-free areas in the typical cavities involved, as pericardial (Fig 2. 3) or pleural effusion (see Fig 2. 23) as well as ascites (Fig 2. 4) ... demonstrated by ultrasound in the beginning, that is, the course of the infection The regression of the sonographic findings can be demonstrated, indicating the healing as well as the occurrence of complications,...