A radiograph of an AP axial sacrum reveals that it is foreshortened, and the sacral foramina are not clearly seen. The patient was in an AP supine position, and the technologist angled the CR 10° cephalad.  What specific positioning error is present on this radiograph?

Which image represents positioning for the AP axial sacroiliac joints?

Which image represents patient positioning for AP sacrum?                                 Image M                              Image O                                Image P  

Which image represents patient positioning for AP sacrum?

Which of the following positions will demonstrate the lumbosacral (L5-S1) zygapophyseal articulations?

How many degrees and in which direction should the CR be directed for an AP axial projection of the coccyx?

Which Image has the CR enter 1.5 inches inferior to the iliac crest and 2 inches posterior to the ASIS?                           Image K                                                       Image N     

Which image is an LPO visualizing the right sacroiliac joint?                                  Image B                                 Image C                             Image D                               Image E

Pathology Matching: Fracture through pedicles and anterior arch of C2 with forward displacement upon C3 Abnormal or exaggerated convex curvature of the Thoracic spine Avulsion fracture of spinous process of C7 A form of rheumatoid arthritis Impact fracture from axial loading of anterior and posterior arch of C1 Mild form of scoliosis and kyphosis developing during adolescence Congenital defect in which the posterior elements of the vertebrae fail to unite Most common at the level of L4-5 and may result in sciatica Forward displacement of one vertebra onto another A vertebra that takes on a characteristic of the adjacent region of the spine, e.g. cervical or lumbar ribs

The AP-axial-vertebral arch projection may be performed to better demonstrate the: