The following table or figure may be downloaded to PowerPoint for personal use in teaching and presentations. This feature is available to all subscribers to the journal.

You MUST read and follow the guidelines at Request to Reproduce AJR Content if you are distributing or using AJR content beyond academic use (limited distribution, non-revenue producing, or educational purposes).

(Downloading may take up to 30 seconds.
If the slide opens in your browser, select File -> Save As to save it.)
Click on image to view larger version.

Fig. 2C. —49-year-old man evaluated for questionable aortic root dilatation seen on transthoracic echocardiography. Ao = aorta. AAo= ascending aorta, DAo = descending aorta, PA = pulmonary artery, LV = left ventricle. Sagittal multiplanar reconstruction (C) with mediastinal window settings (level, 400 H; width, 40 H) and (D) with optimized window settings (level, 400 H; width, 280 H) show that contrast-enhanced PDA forms subtle "positive jet" (arrow) flowing through PDA (asterisk) from enhanced aorta to less-opacified pulmonary artery. Appropriate use of window settings is necessary to identify this subtle finding.