Motion Phantom

Phantom studies are very helpful in the absolute evaluation of motion correction algorithms. While the simulation of rigid motion is relatively straight-forward, reproducible non-rigid motion is more difficult to mimic, especially when MR-compatibility is required. Existing models are either very sophisticated and thus hard to reproduce or require medical equipment such as respirators. To overcome these problems, we suggest an easy-to-build and cost-effective motion phantom which is driven by compressed air. It is

controlled by simple stand-alone electronics which controls a solenoid valve, switching between inspiration and expiration.