A quality assurance tool for daily checks of the gamma knife high definition motion management system.

Journal of Applied Clinical Medical Physics
Robert CornsLeah Roberts

Abstract

This note describes the performance of a quality assurance (QA) tool built for daily checks of the Gamma Knife's high definition motion management (HDMM) system. The tool is a three-dimensional (3D)-printed platform with a raised corner in the center. A reflector post is placed at the corner and the HDMM tool is zeroed to this position. Gage blocks produce very accurate gaps between the post and corner and the HDMM system's readout is compared to the gage block thickness. The HDMM system and tool were tested for noise, stability, reproducibility, linearity, accuracy and overall setup times plus ease of use. The QA tool performed with accuracies better than 0.1 mm. The setup and use of this tool take less than two minutes making it a suitable tool for daily use. This QA tool is a cost-effective solution that provides a fast and easy confirmation of the HDMM accuracy, making it suitable for daily QA checks of the HDMM system.

References

May 26, 2018·Journal of Applied Clinical Medical Physics·Chuan WuStan E Skubic
Jun 5, 2018·Journal of Applied Clinical Medical Physics·Hyun-Tai ChungKook Jin Chun
May 6, 2019·Journal of Applied Clinical Medical Physics·Nels C KnutsonSasa Mutic
Oct 28, 2019·International Journal of Radiation Oncology, Biology, Physics·R Lee MacDonaldMark Ruschin

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Software Mentioned

JMP Pro
Autodesk Fusion 360
pro Fit

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