Share Email Print
cover

Proceedings Paper

Enhanced spatial resolution in cone beam X-ray luminescence computed tomography using primal-dual Newton conjugate gradient method
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

Cone beam X-ray luminescence computed tomography (CB-XLCT) is a novel dual-model imaging technique which opens new possibilities to perform molecular imaging with X-ray. However, the spatial resolution of CB-XLCT is low due the ill-posedness of the inverse problem. Considering the sparse distribution characteristics of the nanophosphors in imaging object, in this paper we proposed a compressive sensing based reconstruction algorithm by using the preconditioned primal-dual newton conjugate gradient (pdNCG) method. Imaging experiments were performed on a physical phantom by the custom-made CB-XLCT. The reconstruction results demonstrate that two adjacent targets with an edge-to-edge distance of 1 mm can be effectively resolved.

Paper Details

Date Published: 28 May 2019
PDF: 4 pages
Proc. SPIE 11072, 15th International Meeting on Fully Three-Dimensional Image Reconstruction in Radiology and Nuclear Medicine, 110722J (28 May 2019); doi: 10.1117/12.2534880
Show Author Affiliations
Peng Gao, Fourth Military Medical Univ. (China)
Junyan Rong, Fourth Military Medical Univ. (China)
Tianshuai Liu, Fourth Military Medical Univ. (China)
Hongbing Lu, Fourth Military Medical Univ. (China)


Published in SPIE Proceedings Vol. 11072:
15th International Meeting on Fully Three-Dimensional Image Reconstruction in Radiology and Nuclear Medicine
Samuel Matej; Scott D. Metzler, Editor(s)

© SPIE. Terms of Use
Back to Top
PREMIUM CONTENT
Sign in to read the full article
Create a free SPIE account to get access to
premium articles and original research
Forgot your username?
close_icon_gray