Find A PhysicianHome  |  Library  |  myDownstate  |  Newsroom  |  A-Z Guide  |  E-mail  |  Contact Us  |  Directions
curve gif

10. Chest (mediastinum) CT #2, axial plane

The plane of this image is through the T3 vertebra. Note the oblique sectioning of the left brachiocephalic vein as it crosses the mediastinum versus the circular cross section of the right brachiocephalic vein which has a longitudinal course (see Image #8).

The esophagus is well seen on both this image and the previous image, #9, because its lumen contains air; this appearance is variable.

CT of the thorax is performed with the arms elevated alongside the head (in order to reduce artifacts from the humeri); this causes rotation of the scapulae. Because of this the supraspinatus muscles appear medial to the scapular spines, and the infraspinatus muscles appear laterally.