Radiotherapy Treatment Planning System

**Semantic type:** Conceptual Entity

**Definition:** A computerized radiation therapy system that incorporates imaging of tumors into specialized plans to optimally focus beams of radiation for delivery to the intended target while avoiding critical structures that are more sensitive to radiation and thus reducing collateral damage from the therapy. Treatment planning systems are able to adjust radiotherapy targeting to compensate for the reduction in tumor size over the course of multiple treatments.

**Synonyms:** - Treatment Planning System