(b) Position: Thoracic and lumbar vertebrae are demonstrated in as
true AP and lateral projections as possible. Some rotation of pelvis and/or thorax may
be apparent because scoliosis generally is accompanied by a twisting or rotation of
(c) Collimation and CR: Vertebral column should be in center of
(d) Shielding: Shield gonadal region without obscuring area of interest.
Use breast shields for young females. Shadow shields placed on collimator may be
used. See figure 4-9.
Figure 4-9. AP projection.