High-Fidelity Modeling of Detector Lag and Gantry Motion in CT Reconstruction

no code implementations • 29 May 2018 • Steven Tilley II, Alejandro Sisniega, Jeffrey H. Siewerdsen, J. Webster Stayman

We show that modeling detector lag can reduce/remove the characteristic lag artifacts in head imaging in both a simulation study and physical experiments.

Medical Physics

Penalized-Likelihood Reconstruction with High-Fidelity Measurement Models for High-Resolution Cone-Beam Imaging

no code implementations • 14 Dec 2017 • Steven Tilley II, Matthew Jacobson, Qian Cao, Michael Brehler, Alejandro Sisniega, Wojciech Zbijewski, J. Webster Stayman

In a simulation study, GPL-BC was able to achieve lower bias as compared to deblurring followed by FDK as well as a model-based reconstruction method without integration of measurement blur.

Medical Physics