A lateral chest projection demonstrates the posterior ribs separated by 2.5 inches (6.35 cm). The superior heart shadow does not extend into the anteriorly situated lung. How should the patient be repositioned to obtain an optimal image?
a. Rotate the left side of the chest 1.25 inches (3 cm) anteriorly.
b. Rotate the right side of the chest 1 inch (2.5 cm) anteriorly.
c. Rotate the right side of the chest 1 inch (2.5 cm) posteriorly.
d. This is an acceptable separation, so no movement is needed.
Question 2
An AP chest projection obtained with the central ray angled too caudally demonstrates:
a. less than 1 inch (2.5 cm) of the apices above the clavicles and horizontally shaped posterior ribs.
b. less than 1 inch (2.5 cm) of the apices above the clavicles and vertically shaped posterior ribs.
c. more than 1 inch (2.5 cm) of the apices above the clavicles and vertically shaped posterior ribs.
d. more than 1 inch (2.5 cm) of the apices above the clavicles and horizontally shaped posterior ribs.
Cardinal Fields of Gaze, Left Lateral Inferior Gaze
Imaginary Thoracic Lines, Left Lateral View
The eye. Lateral view of a sectioned eyeball in its socket.
How lateral inhibition produces contrast enhancement. (Based on Ratliff, 1972.)
Chest x-ray of lung cancer; cancer is seen on the left side.
Deep muscles of the posterior neck; splenius capitis and cervicis attachments.