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Proceedings Paper

Initial clinical evaluation of stationary digital chest tomosynthesis
Author(s): Allison E. Hartman; Jing Shan; Gongting Wu; Yueh Z. Lee; Otto Zhou; Jianping Lu; Michael Heath; Xiaohui Wang; David Foos
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Paper Abstract

Computed Tomography (CT) is the gold standard for image evaluation of lung disease, including lung cancer and cystic fibrosis. It provides detailed information of the lung anatomy and lesions, but at a relatively high cost and high dose of radiation. Chest radiography is a low dose imaging modality but it has low sensitivity. Digital chest tomosynthesis (DCT) is an imaging modality that produces 3D images by collecting x-ray projection images over a limited angle. DCT is less expensive than CT and requires about 1/10th the dose of radiation. Commercial DCT systems acquire the projection images by mechanically scanning an x-ray tube. The movement of the tube head limits acquisition speed. We recently demonstrated the feasibility of stationary digital chest tomosynthesis (s-DCT) using a carbon nanotube (CNT) x-ray source array in benchtop phantom studies. The stationary x-ray source allows for fast image acquisition. The objective of this study is to demonstrate the feasibility of s-DCT for patient imaging. We have successfully imaged 31 patients. Preliminary evaluation by board certified radiologists suggests good depiction of thoracic anatomy and pathology.

Paper Details

Date Published: 31 March 2016
PDF: 8 pages
Proc. SPIE 9783, Medical Imaging 2016: Physics of Medical Imaging, 978366 (31 March 2016); doi: 10.1117/12.2216850
Show Author Affiliations
Allison E. Hartman, The Univ. of North Carolina at Chapel Hill (United States)
Jing Shan, The Univ. of North Carolina at Chapel Hill (United States)
Gongting Wu, The Univ. of North Carolina at Chapel Hill (United States)
Yueh Z. Lee, The Univ. of North Carolina at Chapel Hill (United States)
Otto Zhou, The Univ. of North Carolina at Chapel Hill (United States)
Jianping Lu, The Univ. of North Carolina at Chapel Hill (United States)
Michael Heath, Carestream Health, Inc. (United States)
Xiaohui Wang, Carestream Health, Inc. (United States)
David Foos, Carestream Health, Inc. (United States)


Published in SPIE Proceedings Vol. 9783:
Medical Imaging 2016: Physics of Medical Imaging
Despina Kontos; Thomas G. Flohr, Editor(s)

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