@inproceedings{41b8c7c43cca4d74904d08250c0a4fc0,
title = "Preliminary Investigations of a Novel Dynamic CT Collimator",
abstract = "In this work we describe a new dynamic x-ray collimator that may be used to collect sparse computed tomography projection data. Data sparsity may be user-specified and controlled both angularly and radially - allowing a broad range of acquisition strategies. We consider protocols that have fully sampled projection data for a volume-of-interest with a sparsely sampled background. Model-based reconstruction methods are adapted to process the non-uniformly sampled projections. We demonstrate the ability of a CT system with this novel dynamic collimator to provide user controllable regional image quality and dose reduction in a set of phantom experiments.",
keywords = "Dose Reduction, Dynamic Bowtie Filter, Region-of-Interest Imaging, X-ray Modulation",
author = "Stayman, {J. Webster} and Nir Eden and Ma, {Yiqun Q.} and Jianan Gang and Allon Guez",
note = "Publisher Copyright: {\textcopyright} 2022 SPIE.; 7th International Conference on Image Formation in X-Ray Computed Tomography ; Conference date: 12-06-2022 Through 16-06-2022",
year = "2022",
doi = "10.1117/12.2647268",
language = "English (US)",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Stayman, {Joseph Webster}",
booktitle = "7th International Conference on Image Formation in X-Ray Computed Tomography",
}