2021 Undergraduate Research Showcase

Document Type

Student Presentation

Presentation Date


Faculty Sponsor

Natalie Mourant


The importance of the research completed was to acquire knowledge in regard to secondary radiation doses received by the eyes of the patient and thyroid region during radiographic upper extremity exams. The radiographic exams studied include the following exams: left posteroanterior (PA) hand, left anteroposterior (AP) elbow, and a right transaxillary shoulder projection. The focus of the study was to ascertain whether patient head position during such exams had a reducing effect on absorbed dose. Additionally, this data was compared with previously published literature, in order to establish whether or not the recorded doses are capable or otherwise significant in causing certain deterministic biological tissue effects. The data collected was the result of multiple phantom experiments conducted in a radiography laboratory room of a Pacific Northwest mid sized university. The findings of this research study potentially indicates that head position in relation to the primary beam may influence the amount of absorbed scatter radiation dose received by radiosensitive areas such as the eyes and thyroid region of a patient. Furthermore, an extensive literary review of similar dose recording studies suggest that a correlation is shared between head position and reducing effects of scattered radiation received by the eyes and thyroid based off of their proximity to the primary beam.



To view the content in your browser, please download Adobe Reader or, alternately,
you may Download the file to your hard drive.

NOTE: The latest versions of Adobe Reader do not support viewing PDF files within Firefox on Mac OS and if you are using a modern (Intel) Mac, there is no official plugin for viewing PDF files within the browser window.