There is patient motion, streak artifact, severe osteopenia, or other limiting factors.

There are compression fractures, transverse process fractures, or malalignment.

There are pars interarticularis defects.

There are degenerated discs or facet osteoarthritis.

A fracture is present.

The sacroiliac joints are widened and asymmetric.

There is vertical subluxation of the sacroiliac joints.

There are CT findings of sacroiliac inflammation or degeneration.

There are cortical disruptions or displaced fractures.

Avulsion fractures are present.

Acetabular fractures are present.

The pubic symphysis is widened or vertically incongruent.

There are CT findings of pubic symphysis inflammation or degeneration.

Hip alignment is abnormal.

There is hip osteoarthritis or inflammation.

There are hip joint effusions.

There are intra-articular bodies within the hip joints.

Femoral head fractures are present.

Femoral head osteonecrosis is present.

There are fractures of the femoral neck, intertrochanteric region, or subtrochanteric region.

There are avulsion fractures of the greater or lesser trochanters.

The osseous mineralization is diffusely abnormal.

An additional osseous lesion is present.

There is acute or chronic pathology of the vessels.

There is acute injury to the muscles or the superficial adipose layer.

The visualized intrapelvic organs are abnormal.