Final answer:
The rapid evolution of treatment planning and delivery systems in oncology aims to increase tumor effects, reduce normal tissue damage, and improve patient safety, but not to decrease patient care.
Step-by-step explanation:
Treatment planning and delivery systems in the field of oncology are rapidly evolving to accomplish several objectives, but they do not aim to decrease patient care. The evolutionary goals of these systems include increasing tumor effects, reducing normal tissue damage, and improving patient safety. These advancements are largely driven by the deployment of nanotechnologies and controlled drug delivery systems, which strive to discriminate between cancer cells and normal healthy cells to minimize side effects while maximizing therapeutic efficacy. Sophisticated nanosystems have been developed to provide delivery of one or more therapeutic molecules in a controlled, selective, and smart way to target cancer cells and tissues directly, which has introduced a new era in cancer therapy.