From Treatment Delivery to Knowledge Generation: A Decade of RTT-Led Evidence and Research Culture in Radiotherapy: A Narrative Review

Abstract
Introduction: Radiation therapy has evolved substantially in recent years, with Radiation Therapists and Therapeutic radiographers (RTTs) expanding beyond technical roles to become compassionate caregivers, innovators, and research leaders. Advances such as Image-Guided Radiotherapy (IGRT) and Adaptive Radiotherapy (ART), together with growing recognition of patient-centered care, have strengthened RTT involvement in education, psychosocial support, safety, and workflow improvement. Despite these advances, sustaining RTT-led evidence-based practice and research remains difficult, particularly in resource-limited settings. This review explores the scientific and human impact of RTT-led interventions in global radiotherapy practice.
Materials and methods: An integrative narrative review was conducted on 39 original RTT-led studies published between January 2015 and July 2025. Searches were performed in PubMed, Scopus, Web of Science, Embase, and Crossref using terms related to adaptive radiotherapy, image guidance, patient-centered care, efficiency, and professional development. Included studies focused on IGRT/ART, psychosocial care, patient safety, and research culture development.
Results: RTT-led initiatives demonstrated meaningful impact across multiple domains. Patient-focused interventions improved emotional well-being, treatment understanding, and overall experience, emphasizing the human side of RTT practice. Technically, RTTs showed high precision in image guidance, contouring, and adaptive planning, often matching or exceeding clinician-led outcomes. Safety programs also strengthened incident learning and quality assurance. Key barriers remained limited research time, mentorship opportunities, and academic support.
Conclusion: RTT-led research successfully integrates technical excellence with compassionate care, improving patient outcomes, efficiency, and safety. Strengthening research culture, mentorship, and academic pathways is essential for advancing radiotherapy practice, particularly in developing healthcare systems.