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- FIGURE 33.4-19. Simulation radiographs of a cased planned for
- treatment with four-field conventional technique. (a) Anteroposterior
- localization film of the prostate PTV and the planned rectangular
- treatment field. Contrast material (Hypaque) has been placed in the
- urinary bladder, the rectum, and the balloons of the Foley catheters
- placed in the bladder and rectum. The set-up point (SP) is marked on
- the patient's skin. The center point for the treatment field is
- designated (R). (b) Lateral localization of the prostate PTV and the
- prostatic field. (c) and (d) Pelvic fields designed in this patient to
- electively treat the pelvic lymph nodes. (Bagshaw MA. A technique for
- external beam radiotherapy for carcinoma of the prostate. In: Levitt
- SH, Tapley NV, eds. Technological bias of radiotherapy: practical
- clinical applications. Philadelphia: Lea & Febiger, 1984:244)
-