Imaging (R)evolution: Questioning Our Motivations Behind Rapid Adoption of New Technologies in Radiation Oncology

Image-guided treatment has revolutionized the field of radiation oncology. Improved tumor visualization through CT and MRI in the 1970s prompted innovative methods of targeting: intensity modulated radiation therapy and multileaf collimators to deliver complex dose distributions (1). In head and neck cancer, for instance, these innovations are associated with improved survival and quality of life with reduced toxicities (2-4). Advances in functional and metabolic imaging create targets based on tumor biology (1).

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