Using a Mobile Device Application for Checks of Cyberknife Daily Quality Assurance
Abstract
Purpose
Daily Quality Assurance (QA) is critical to ascertain regular checks upon radiation therapy treatment machines and maintain quality of treatment plan delivery for patients. A point of interest is to improve the workflow and ease of use of the devices and checks used during these daily QAs. The purpose of this study is to do a comparative analysis of an in-house application created to perform Accuray Cyberknife AQA tests using a mobile device’s camera to promote alternative methods of verification.
Methods
This retrospective study includes seventeen morning AQA GAFchromic film analyzed using the Accuray AQA software to determine radial error in a 3-dimensional perspective. The films that were analyzed include the following three types of apertures: Fixed, Iris, and MLC. A clinic approved Epson scanner was used to scan the films and processed through the Accuray software. Films were processed using a mobile device, Apple iPhone, capable of 42-megapixel quality images to analyze within an in-house application housing the AQA analysis program.
Results
Analysis of the current sample size suggest that the Epson scanner and native to PC Accuray AQA software perform with greater consistency when compared to the setup using the application and mobile device.
Conclusion
Under the current processing framework and mobile device operating system, the in-house mobile app rendition is comparable in results but demonstrates greater variability. With further development, a one-to-one or improved setup over the original can be created and adapted to multiple types of mobile devices, demonstrating a promising future for this application and brings consideration to expand upon its use in the clinic.