TABLE 3.
Field | Border | Landmark |
---|---|---|
AP‐PA fields | Superior | L4–5 vertebral interspace |
Inferior | 2 cm below the obturator foramen or 3 cm inferior to distal disease, whichever is lower | |
Lateral | 1.5–2 cm lateral to the pelvic brim | |
Lateral fields | Superior | Same as AP‐PA field |
Inferior | Same as AP‐PA field | |
Anterior | Anterior to the pubic symphysis | |
Posterior | 0.5 cm posterior to the anterior border of the S2/3 vertebral junction. May include the entire sacrum to cover the disease extent |