OC-0301 Real-time kV image guidance in the treatment of pancreatic SBRT: quantifying the purpose and impact
Year: 2019
Type: conference-abstract
Abstract: Purpose or ObjectiveTumour motion may cause substantial deterioration of planned dose distributions.However, the dosimetric impact of tumour motion can be mitigated by MLC tracking.Current QA for MLC tracking involves pretreatment delivery of the treatment plan to a moving dosimeter to determine its suitability for MLC tracking.This is a time-consuming process that may be replaced by dose delivery simulations for easier assessment of the suitability of MLC tracking for a given plan.In this study, we simulate delivered doses to a moving dosimeter with and without MLC tracking and validate the simulations by comparison with measurements. Material and MethodsMLC tracking experiments were performed on a TrueBeam linear accelerator using iTools Tracking (Varian, CA) guided by an optical marker block.Delivered doses were
Source: Radiotherapy and Oncology
Authors: B. Jones, Y. Vinogradskiy, W. Campbell, Y. Ding, T. Schefter, K. Goodman, M. Miften
Institutions: Aarhus University, Aarhus University Hospital
Language: English
Subfield: Radiation
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $2,000
OpenAlex ID: W2946412273