Use of dose-area product to assess plan quality in robotic radiosurgery.

ABSTRACT:

Purpose

In robotic stereotactic radiosurgery (SRS), optimal selection of collimators from a set of fixed cones must be determined manually by trial and error. A unique and uniformly scaled metric to characterize plan quality could help identify Pareto-efficient treatment plans.

Methods

The concept of dose-area product (DAP) was used to define a measure (DAP_ratio) of the targeting efficiency of a set of beams by relating the integral DAP of the beams to the mean dose achieved in the target volume. In a retrospective study of five clinical cases of brain metastases with representative target volumes (range: 0.5-5.68 ml) and 121 treatment plans with all possible collimator choices, the DAP_ratio was determined along with other plan metrics (conformity index

SUBMITTER: Eichner M 

PROVIDER: S-EPMC11384082 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature