Recommendations of the Spanish Society Of Medical Physics (SEFM) on Implementation and clinical use of Stereotactic Body Radiation Therapy (SBRT)

Abstract

Stereotactic Body Radiation Therapy (SBRT) is a radiation technique that has recently been implemented in some centers and its use has been generalized in many others. The Spanish Society of Medical Physics (Sociedad Española de Física Médica, SEFM) formed an SBRT working group with the aim to create a document to encompass general recommendations for this technique's implementation and its clinical use. This same document could serve to determine the recommendable basic equipment to perform SBRT and to establish work procedures that will serve as a guide in those centers willing to initiate this technique as well as normalize procedures in those centers that have already implemented it. The final objective would be the comparison of clinical results between centers or even to be able to perform multicentric studies.

In this work SBRT concepts are defined, recommendable minimum equipment is established, characteristics of absorbed dose measures in small field irradiation are detailed, planning system`s calculation algorithms related problems associated to dose distribution in heterogeneous matter are described, criteria for conducting clinical dosimetry are established, this treatment's procedures are described both for fixed and mobile lesions, recommendations in the reproduction of patient position between planning CT and treatment unit are established, equipment quality control tests for SBRT are established and finally, general recommendations for this type of treatment are given.