Anteroposterior/Posteroanterior Sequential Radiotherapy

**Semantic type:** Therapeutic or Preventive Procedure

**Definition:** A type of radiation procedure in which radiation is applied first in an anteroposterior anatomical plane and then in a posteroanterior anatomical plane.

**Synonyms:** - AP-PA Sequential - AP-PA Sequential - AP/PA SEQUENTIAL - APPA Sequential - APPA Sequential - AnteriorPosterior-PosteriorAnterior Sequential - AnteriorPosterior-PosteriorAnterior Sequential - Anteroposterior-Posteroanterior Sequential - Anteroposterior-Posteroanterior Sequential