Abstract #5231

Computer-controlled non-metallic phantom platform to simulate head motion with two degrees of freedom

Jacob Horne¹, Reggie Taylor², and Tong Xu³

¹Department of Mechanical & Aerospace Engineering, Carleton University, Ottawa, ON, Canada, ²Institute of Mental Health Research, The Royal Ottawa Mental Health Centre, Ottawa, ON, Canada, ³Department of Physics, Carleton University, Ottawa, ON, Canada

Synopsis

Keywords: Phantoms, Motion Correction, Dynamic phantomA computer-controlled non-metallic head phantom platform was designed and constructed from 3D-printed parts. Driven by pneumatic stepper motors, the platform can simulate head motion with two degrees of freedom: tilting and rolling, with angular step resolution of 0.0833 degree and 0.227 degree, respectivily. A "neck/spine" design allows different static head phantoms to be mounted to the platform while still be able to fit inside standard head coils. The platform was tested on a PET/MRI scanner and successfully produced motion artifact with simulated motion.

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