Evaluating inter-campus plan consistency using a knowledge based planning model.

ABSTRACT:

Background and purpose

We investigate whether knowledge based planning (KBP) can identify systematic variations in intensity modulated radiotherapy (IMRT) plans between multiple campuses of a single institution.

Material and methods

A KBP model was constructed from 58 prior main campus (MC) esophagus IMRT radiotherapy plans and then applied to 172 previous patient plans across MC and 4 regional sites (RS). The KBP model predicts DVH bands for each organ at risk which were compared to the previously planned DVHs for that patient.

Results

RS1's plans were the least similar to the model with less heart and stomach sparing, and more variation in liver dose, compared to MC. RS2 produced plans most similar to those expected from the model. RS3 plans displayed more variabili

SUBMITTER: Berry SL 

PROVIDER: S-EPMC5003669 | biostudies-literature | 2016 Aug

REPOSITORIES: biostudies-literature