Abdomen Projections

Merrill's Atlas - CH 4

What SID should you generally use for an abdomen projection?

40 inches

What tissue structures are used to determine effective technique?

lower liver border, psoas muscles, kidneys, ribs, transverse processes of l-spine

What is an acute abdominal series (3-way abdomen) meant to observe?

abdominal contents, presence of free air, and air-fluid levels

What projection and position is used when an upright/supine AP abdomen isn’t possible?

left lateral decubitus

Where is the CR aimed in a supine AP abdomen?

MSP, aligned at the iliac crests

What projection, position, and anatomy is this?

AP KUB

Where is the CR aimed in an upright AP abdomen?

2 inches above the iliac crest, MSP; if bladder is included, center to iliac crest instead

Is the CR for an upright AP abdomen the same as a lateral/decubitus abdomen?

yes

What projection, position, and anatomy is this?

left lateral decubitus

What projection, position and anatomy is this?

lateral abdomen

What projection, position and anatomy is this?

dorsal decubitus with left side pressed against the IR, for abdomen

What projection, position and anatomy is this?

AP abdomen, upright position

What projection, position and anatomy is this?

AP abdomen, supine position