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A Retrospective Comparison Of Dose Distribution Within Density Override And Avoidance Structures In Volumetric Arc Therapy Prostate Plans With Hip Prosthetics: A Dosimetric Evaluation, Jared Richard Brinkman

Culminating Experience Projects

Introduction

Prostate cancer is one of the most common cancers among men, and its incidence is a significant health concern. The optimal radiation treatment for prostate cancer patients needs to be tailored to reduce toxicities to organs at risk within the treated area. This study aims to retrospectively evaluate the dose distribution to organs at risk (OARs) in patients with hip prosthetics for volumetric modulated arc therapy (VMAT) prostate cancer plans.

Methods

The study included ten prostate cancer patients with at least one prosthetic hip who received VMAT plans at a Midwest Radiation Oncology Center. Various data points, including target …

Spine Stereotactic Body Radiation Therapy (Sbrt): Using Biological Objectives In Treatment Planning A Comparative Plan Study, Joseph E. Pagano

Culminating Experience Projects

Introduction: The purpose of the study is intended to determine if gEUD optimization can be useful in the treatment planning for SBRT to the spine. The main goal was to study the dose effects when placing gEUD objectives on the targeted vertebral structure (Target gEUD) and spinal cord (Upper gEUD). Furthermore, to provide a better understanding of the utility of this tool.

Methods: Two planning techniques for SBRT spine treatments were compared retrospectively on 10 radiation therapy patients. The Varian Eclipse treatment planning system was utilized with the volumetric modulated arc therapy treatment technique. The planning techniques used different objectives …

Analysis Of Ptv Margins For Vmat Treatment Of Rectal Cancers Utilizing Prone Bellyboard Device., Ben Armbuster

Culminating Experience Projects

Utilization of a bellyboard device reduces small bowel dose for patients receiving radiation therapy for rectal cancer. The reduction of small bowel dose with the bellyboard is even more significant in intensity modulated radiation therapy rectal treatments, as opposed to conventional 3D treatments. However, there is evidence of increased setup variation with prone bellyboard positioning, especially in pitch and roll. The purpose of this study is to determine the margin needed between the clinical target volume and the planning target volume to adequately account for these setup variations when planning volumetric modulated arc therapy rectal cases utilizing the bellyboard device. …