Sacroiliac (SI) Joints

Central Ray for AP Axial SI Joints

Central is angled 30 degrees cephalad to enter MSP at a level 2 inches above symphysis pubis

Patient Position for AP Axial SI Joints

Supine

Respiration for AP Axial Sacroiliac Joints

suspend

Anatomy for AP Axial Sacroiliac Joints

Both SI joints

How many degrees is the tube angled for an AP Sacroiliac Joints projection

30 degrees cephalad

What are the 2 projections to visualize the SI joints

Ap Axial and Ap Oblique

Patient Position for AP Obliques of SI Joints

Supine and elevate the side of interest 25 to 30 degrees

Patient Respiration for AP Obliques SI joints

Suspend

Central Ray for AP Obliques of SI joints

enters perpendicular to enter 1 inch medial to the elevated ASIS

For an AP oblique of the SI joints what side is being examining

the side farthest and elevated on the sponge from the IR

For an RPO projection of the SI joint , what side is being examining?

Left

For an LPO projection of the SI joint , what side is being examining?

Right

What anatomy is shown on the AP oblique projections of the SI joints?

Sacroiliac joint farthest away from the IR, free of superimposition of the ilium and sacrum