Multi-Target Stereotactic Radiosurgery
Multi-target radiosurgery is one of the most challenging scenarios to achieve accurate dosimetry due to small off axis volumes, lack of charged particle equilibrium, and steep dose gradients. Default beam modeling parameters recommended by the manufacturer are often not intended for this scenario. Achieving an SRS program with robust dosimetry for all scenarios can be a time consuming endeavor.
Physicists at Axis Radiotherapy provide specialized expertise in multi-target SRS with decades of clinical experience and 20+ peer reviewed publications on the subject. We leverage this expertise to help clinics quickly and easily move beyond “acceptable” performance toward robust, well-characterized treatment delivery for even the most challenging dosimetric scenarios.
SRS Commissioning Course
(coming soon!)
We offer an online course to help guide physicists in commissioning an SRS program, including both single target SRS and multi-target VMAT SRS. Many vendor recommended beam modeling parameters are intended to achieve accurate dosimetry for radiotherapy targets at isocenter, but may not necessarily be ideal for treating multiple small targets located off axis. In this course, we walk through the beam modeling process with extensive commissioning data (central and off axis output factors, & measurements for phantom & clinical SRS plans) to determine the optimal beam modeling parameters to achieve accurate dosimetry for multi-target SRS.
In addition to beam modeling, we walk you through development of SOPs and image guidance procedures, as well as performance of various independent dose calculation software and pre-treatment measurement hardware for multi-target SRS. This course leverages our expertise in radiosurgery to give you all the tools you need to develop a state of the art radiosurgery program with highly accurate dosimetry for all scenarios.
Commissioning & Validation
We offer commissioning services and guidance for multi-target SRS programs, including:
Beam data collection & validation for central and off axis small fields
Beam modeling to achieve accurate dosimetry for all multi-target clinical scenarios
End-to-end validation strategies
Strategies for accurate, robust, & efficient pre-treatment QA, independent dose calculation, & routine linear accelerator and TPS QA
Development of Standard Operating Procedures (SOPs) & Documentation
Flexible Service to Meet Your Needs
Our services are highly flexible to meet the needs of any clinic & project, ranging from remote guidance for physicists going through a commissioning process to offering full commissioning services. We also offer ongoing support such as remote treatment planning and temporary clinical coverage.
Discuss your SRS program:
Whether implementing a new SRS program, improving SRS dosimetry, refining an existing program, Axis Radiotherapy Physics can provide any level of support to meet your needs.
