Dosimetry and Toxicity Comparison of Three-Dimensional Conformal Radiation Therapy and Intensity-Modulated Radiation Therapy in Locally Advanced Lung Cancer Across a Large Statewide Quality Collaborative.

Purpose/objective(s): Use of intensity-modulated radiation therapy (IMRT) versus three-dimensional conformal external beam radiation therapy (3D-CRT) for definitive chemoradiation therapy (CRT) in locally advanced non-small cell lung cancer (LA-NSCLC) has been associated with decreased late pneumonitis, decreased high dose to the heart (itself associated with improved overall survival), and improved patient quality of life. In a statewide radiation oncology quality consortium, we sought to evaluate the impact of IMRT versus 3D-CRT treatment technique on dosimetry and toxicity.

Materials/methods: From 2012 to 2022, 1746 LA-NSCLC patients meeting inclusion criteria underwent definitive RT (90% CRT) with either 3D-CRT (n=313) or IMRT (n=1433) and were enrolled in the [quality consortium] prospective, multicenter statewide initiative.

Reirradiation Special Medical Physics Consultations: Lessons Learned from Nearly 3000 Courses of Treatment.

Introduction: Reirradiation (reRT) has become increasingly prevalent due to an aging population and advancements in cancer detection and treatment. However, the field is still lacking standardized dosimetric evaluation methods and reRT workflows, which leads to difficulty in correlating clinical outcomes with delivered dose. This study reports on the implementation and evolution of a standardized reRT workflow in the Department of Radiation Oncology at [redacted], describing insights gained from nearly 3000 external beam reirradiation courses delivered since 2017.

Community-Engaged Development of a Nutrition Curriculum: The Go Healthy Indigenous-Supported Agriculture Study.

Objective: To understand how Osage Nation community members define healthy eating and develop a corresponding nutrition curriculum through community engagement.

Design: This project comprised a concurrent embedded mixed methods group concept mapping (GCM) study followed by focus group discussions (FGD) to provide feedback on a nutrition curriculum.

Setting: Osage Nation, Oklahoma.

Arterial dissection in scuba divers: a potential adverse manifestation of the physiological effects of immersion.

Introduction: Aortic dissections and dissections of cervical, cerebral, and coronary arteries have been previously reported in scuba divers. These incidents may be the consequence of a variety of physiological effects. We review the reported cases of arterial dissection in scuba divers and discuss potential contributing factors related to immersion and diving.