An axial CT image of the brain in a trauma patient shows a hyperdense epidural hematoma (arrowheads) with a small rounded area of low attenu...

An axial CT image shows hyperdense structures within the segmental branch of the right middle lobe pulmonary artery (arrow), and in the peri...

According to the version #7 (2010) ACR Manual on Contrast Media, the following regimens are recommended for premedication of patients at ris...

An axial CT image shows a segment of decreased enhancement of the small bowel wall (arrows) as compared to the more normally enhancing loops...

An axial CT image shows a laceration of the spleen (arrowhead), hemoperitoneum and localized area of high attenuation (arrow) in the perispl...