Conference proceeding
Preliminary Investigations of a Novel Dynamic CT Collimator
Proceedings of SPIE, the international society for optical engineering, v 12304
2022
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.
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Details
- Title
- Preliminary Investigations of a Novel Dynamic CT Collimator
- Creators
- J. Webster Stayman - Johns Hopkins UniversityNir Eden - Art Cybe, Kafr Saba, IsraelYiqun Q. Ma - Johns Hopkins UniversityGrace J. Gang - Johns Hopkins UniversityAllon Guez - Drexel University
- Publication Details
- Proceedings of SPIE, the international society for optical engineering, v 12304
- Publisher
- SPIE
- Resource Type
- Conference proceeding
- Language
- English
- Academic Unit
- Electrical and Computer Engineering
- Scopus ID
- 2-s2.0-85141749350
- Other Identifier
- 991022237376704721