Mask free intravenous 3D digital subtraction angiography (IV 3D-DSA) from a single C-arm acquisition

Yinsheng Li; Kai Niu; Pengfei Yang; Beveley Aagaard-Kienitz; David B. Niemann; Azam S. Ahmed; Charles Strother; Guang-Hong Chen

doi:10.1117/12.2216869

22 March 2016 Mask free intravenous 3D digital subtraction angiography (IV 3D-DSA) from a single C-arm acquisition

Yinsheng Li, Kai Niu, Pengfei Yang, Beveley Aagaard-Kienitz, David B. Niemann, Azam S. Ahmed, Charles Strother, Guang-Hong Chen

Author Affiliations +

Proceedings Volume 9783, Medical Imaging 2016: Physics of Medical Imaging; 97830V (2016) https://doi.org/10.1117/12.2216869
Event: SPIE Medical Imaging, 2016, San Diego, California, United States

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.

Citation Download Citation

Yinsheng Li, Kai Niu, Pengfei Yang, Beveley Aagaard-Kienitz, David B. Niemann, Azam S. Ahmed, Charles Strother, and Guang-Hong Chen "Mask free intravenous 3D digital subtraction angiography (IV 3D-DSA) from a single C-arm acquisition", Proc. SPIE 9783, Medical Imaging 2016: Physics of Medical Imaging, 97830V (22 March 2016); https://doi.org/10.1117/12.2216869

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