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Proceedings Paper

Multi-energy CT with triple x-ray beams: a feasibility animal study
Author(s): Liqiang Ren; Kishore Rajendran; Joel G. Fletcher; Thomas Allmendinger; Ahmed Halaweish; Bernhard Schmidt; Thomas Flohr; Cynthia H. McCollough; Lifeng Yu
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Paper Abstract

Energy-integrating-detector (EID)-based triple-beam multi-energy CT (TB-MECT) was recently implemented on a dual-source (DS) CT platform by mounting a z-axis split-filter (0.05 mm Au, 0.6 mm Sn) on one of the two tubes. The purpose of this work is to perform a feasibility animal study on this new MECT platform for a small bowel imaging task using two contrast agents, iodine and bismuth. Optimal triple-beam configurations, 70/Au140/Sn140 kV were determined in a phantom study for this task and applied in the animal study for best material decomposition imaging performance. The results demonstrated that the TB-MECT can successfully separate and quantify the two contrast agents from one single scan for the task of small bowel imaging.

Paper Details

Date Published: 16 March 2020
PDF: 6 pages
Proc. SPIE 11312, Medical Imaging 2020: Physics of Medical Imaging, 113121R (16 March 2020); doi: 10.1117/12.2549780
Show Author Affiliations
Liqiang Ren, Mayo Clinic (United States)
Kishore Rajendran, Mayo Clinic (United States)
Joel G. Fletcher, Mayo Clinic (United States)
Thomas Allmendinger, Siemens Healthineers (Germany)
Ahmed Halaweish, Siemens Healthineers (Germany)
Bernhard Schmidt, Siemens Healthineers (Germany)
Thomas Flohr, Siemens Healthineers (Germany)
Cynthia H. McCollough, Mayo Clinic (United States)
Lifeng Yu, Mayo Clinic (United States)

Published in SPIE Proceedings Vol. 11312:
Medical Imaging 2020: Physics of Medical Imaging
Guang-Hong Chen; Hilde Bosmans, Editor(s)

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