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Proceedings Paper

Mask free intravenous 3D digital subtraction angiography (IV 3D-DSA) from a single C-arm acquisition
Author(s): Yinsheng Li; Kai Niu; Pengfei Yang; Beveley Aagaard-Kienitz; David B. Niemann; Azam S. Ahmed; Charles Strother; Guang-Hong Chen
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Paper Abstract

Currently, clinical acquisition of IV 3D-DSA requires two separate scans: one mask scan without contrast medium and a filled scan with contrast injection. Having two separate scans adds radiation dose to the patient and increases the likelihood of suffering inadvertent patient motion induced mis-registration and the associated mis-registraion artifacts in IV 3D-DSA images. In this paper, a new technique, SMART-RECON is introduced to generate IV 3D-DSA images from a single Cone Beam CT (CBCT) acquisition to eliminate the mask scan. Potential benefits of eliminating mask scan would be: (1) both radiation dose and scan time can be reduced by a factor of 2; (2) intra-sweep motion can be eliminated; (3) inter-sweep motion can be mitigated. Numerical simulations were used to validate the algorithm in terms of contrast recoverability and the ability to mitigate limited view artifacts.

Paper Details

Date Published: 22 March 2016
PDF: 6 pages
Proc. SPIE 9783, Medical Imaging 2016: Physics of Medical Imaging, 97830V (22 March 2016); doi: 10.1117/12.2216869
Show Author Affiliations
Yinsheng Li, Univ. of Wisconsin-Madison (United States)
Kai Niu, Univ. of Wisconsin-Madison (United States)
Pengfei Yang, Univ. of Wisconsin-Madison (United States)
Beveley Aagaard-Kienitz, Univ. of Wisconsin-Madison (United States)
David B. Niemann, Univ. of Wisconsin-Madison (United States)
Azam S. Ahmed, Univ. of Wisconsin-Madison (United States)
Charles Strother, Univ. of Wisconsin-Madison (United States)
Guang-Hong Chen, Univ. of Wisconsin-Madison (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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