ACR-ARS Practice Parameter for the Performance of Stereotactic Body Radiation Therapy

This practice parameter was revised collaboratively by the American College of Radiology (ACR) and American Radium Society (ARS). Stereotactic body radiation therapy (SBRT) precisely delivers higher dose(s) of radiation in 5 of fewer fractions, compared with conventional radiation. Given the complexity and technical nature of this treatment technique, practice parameters are needed to provide guidance to physicians and physicists.

This practice parameter was developed according to the process described under the heading The Process for Developing ACR Practice Parameters and Technical Standards on the ACR website ( https://www.acr.org/Clinical-Resources/Practice-Parameters-and-Technical-Standards ) by the Committee on Practice Parameters-Radiation Oncology of the ACR Commission on Radiation Oncology in collaboration with the ARS.

Workflow, qualifications/responsibilities of personnel, quality control, and treatment delivery/verification are reviewed. Notable elements of SBRT include image guidance, immobilization, and motion management, with the treatment planning goal of minimizing the volume of normal tissue exposed to medium and high dose levels and maximizing dose safely to the target. Specialized training is encouraged, as some technologies are not used in standard treatments.

This practice parameter provides direction on key components recommended for SBRT and may be used as a guide to physicians and physicists wanting to provide this treatment to their patients.