Automated conversion of Millennium-120 VMAT plans to HDMLC geometry: Software development and treatment of first patients.

ABSTRACT:

Purpose

To provide plan backup resiliency for patients treated on a solitary high definition multileaf collimator (HDMLC) linac by developing a fully integrated Eclipse script, which converts patient plans initially optimized on Millennium-120 (M120) MLC to dosimetrically equivalent leaf motions for delivery on HDMLC. In the event of HDMLC machine downtime, affected patients can be transferred to Millennium-120 units, and their backup plan delivered without delay.

Methods

Write-enabled Eclipse scripting is leveraged to generate HDMLC treatment fields with control points parameterized to mimic apertures of an existing Millennium-120 VMAT plan. Non-parity between intermediate control point gantry angles of script generated arcs relative to VMAT is reconciled through an interpo

SUBMITTER: Yang R 

PROVIDER: S-EPMC9195034 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature