Towards C-arm CT Reconstruction on Larrabee

Abstract

Abstract—Reconstruction of 3-D cone-beam CT data is a computationally complex task. Therefore, many research groups were and are currently investigating methods for hardwareacceleration. A novel many-core computing platform—code named Larrabee—is currently developed by Intel. In this work we demonstrate how the back-projection step of an FDKbased reconstruction algorithm can be implemented efficiently on Larrabee. We introduce relevant features of this upcoming hardware platform, describe how to port legacy code and show several Larrabee-specific optimizations