What is conventional external beam radiotherapy (EBRT)?

Updated: Aug 17, 2020
  • Author: Isamettin Andrew Aral, MD, MS; Chief Editor: Edward David Kim, MD, FACS  more...
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Conventional EBRT is typically delivered by means of a 4-field technique. The 4 fields (anteroposterior [AP], posteroanterior [PA], left lateral, and right lateral) are designed to include the prostate, the seminal vesicles, and the regional lymphatic vessels.

The morbidity of radiation treatment is intimately linked to the volume of normal tissue treated. Conventional radiotherapy includes irradiation of large volumes of tissue, including the skin, small bowel, bladder, large bowel, pelvic bones, and additional areas of soft tissue.

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