SBRT Commissioning and Validation
High-Precision Treatment Delivery for Complex Clinical Conditions
Stereotactic body radiotherapy (SBRT) requires accurate dose delivery under conditions that can challenge both treatment planning and clinical implementation. Small fields, steep dose gradients, motion management, heterogeneous anatomy, and image guidance workflows all contribute to the complexity of SBRT commissioning and validation.
Axis Radiotherapy Physics provides specialized support for the implementation, evaluation, and refinement of SBRT programs, with an emphasis on robust dosimetry, workflow reliability, and independent verification.
Areas of Support
SBRT Commissioning
Comprehensive support for commissioning and clinical implementation of SBRT workflows, including:
Beam model evaluation and validation
Small-field dosimetry review
End-to-end workflow testing
Image guidance and localization assessment
Treatment delivery verification
The goal is not simply to achieve baseline commissioning agreement, but to characterize performance under clinically realistic treatment conditions.
Motion Management and Workflow Evaluation
Motion introduces additional uncertainty into treatment delivery and dose reconstruction. Evaluation may include:
Respiratory motion management workflows
Gating and breath-hold process review
Interplay and motion-related delivery considerations
Simulation-to-treatment workflow consistency
Independent Validation and QA
Independent assessment can help identify limitations or assumptions not fully evaluated during standard commissioning processes.
Support may include:
Secondary dose calculation review
End-to-end QA design and interpretation
Independent plan and delivery evaluation
Investigation of unexpected dosimetric discrepancies
Small-Field and Heterogeneity Considerations
SBRT treatments frequently involve:
Small treatment fields
High dose gradients
Heterogeneous anatomy
Tight conformity requirements
These conditions can introduce sensitivity to detector selection, measurement technique, and dose calculation methodology.
Axis Radiotherapy Physics emphasizes careful evaluation of these factors during commissioning and validation workflows.
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 SBRT Program
Whether implementing a new SBRT workflow or refining an existing program, Axis Radiotherapy Physics can provide focused support for commissioning, validation, and independent dosimetric evaluation.
