Bill Salter, PhD

The article by Song, Kavanagh,Benedict, and Schefter is an insightfuland interesting summaryof this new technologic approachto the treatment of extracranial tumors.The work summarizes thesalient aspects of the emerging stereotacticbody radiation therapy (SBRT)paradigm, and characterizes the rationale,methodologies, and perceivedpotential for this promising new approachto treatment. The authorspresent interesting perspectives on thechallenges facing early adopters ofthe approach and, as early adopters,we find that our own experience supportsmany of the conclusions drawnby the authors.