Design and optimization of single- or multiple-arc plans is enabled. VMAT is planned through an optimization procedure (inverse planning).
Objectives and constraints for the desired dose are defined, and the system creates a plan that matches these criteria as closely as possible within the limitations of the treatment machine. The optimized plan is directly deliverable, without the need for post-processing that might degrade quality.
VMAT planning follow the same workflow as SMLC optimization. In addition it is possible to use delivery time and motion constraints.
The direct optimization of machine parameters means the optimized plan is directly deliverable with no quality-degrading post processing required. Varian, Elekta and Siemens machines are supported, including non-upgraded Varian machines and the Siemens mArc.
As the computation time is measured in seconds rather than minutes, you can efficiently produce several competing treatment plans to assess different trade-off situations instead of opening a second case or going on a break during computations. Download the study below and see how decreasing calculation times for VMAT planning significantly increased the fulfillment of clinical goals.