In its efforts to improve the quality of cancer care, the American College of Radiology (ACR) Patterns of Care Study (PCS) has conducted detailed retrospective surveys of the national radiation oncology practice since 1973. The Patterns of Care Study (PCS) in radiation oncology, supported by a grant from the National Cancer Institute has been conducting surveys of the structure, process, and outcomes of care for patients treated with radiation therapy for more than 30 years.

This unique quality improvement initiative has had a major positive impact on contemporaneous practice and has kept pace with dramatic alterations in the radiation oncology structural base and clinical processes. Results have assertively influenced continuing quality improvement in radiation oncology through a variety of recursive processes that are inherent to the profession. These contributions have been integral to progressive development of the highest standard of radiation oncology care in the world. The “environment of watchful concern“ created by PCS has recently been lauded by national panels and authorities.

As we accelerate our efforts to maintain the high quality of US radiation oncology practice we have determined that Quality Research in Radiation Oncology (QRRO) is the appropriate new descriptive nomenclature for PCS. The support and participation of the entire community of radiation oncology is the crucial factor that has made this project successful. In addition, assistance from our colleagues in other specialties helps us fulfill our mission by providing more complete data, especially on outcomes.