Final answer:
AP/PA axial SI joint projections are used to visualize the sacroiliac joint. The atlantoaxial joint and temporomandibular joint have similar criteria for imaging.
Step-by-step explanation:
AP/PA axial SI joint projections are used to visualize the sacroiliac joint, which is formed between the sacrum and the ilium bones of the pelvis. The criteria for these projections include a 20-30 degree cephalic (AP) or caudal (PA) angulation, a 10-15 degree superior tilt, and centering the CR at the level of the ASIS. The goal is to obtain a clearly visualized SI joint without superimposition of other structures.
There are other joints in the body that have similar criteria for imaging. One example is the atlantoaxial joint, formed between the atlas (C1 vertebra) and axis (C2 vertebra) in the cervical spine. Both joints require positioning the CR at specific angles and tilts to visualize the joint space without superimposition of surrounding structures.
Another example is the temporomandibular joint, formed between the mandible (lower jaw) and the temporal bone of the skull. Specific criteria for imaging this joint involve positioning the CR at specific angles, tilts, and open and closed mouth projections to visualize the joint and its movement without superimposition of other structures.