Multi-energy CT with triple x-ray beams: a feasibility animal study

Liqiang Ren; Kishore Rajendran; Joel G. Fletcher; Thomas Allmendinger; Ahmed Halaweish; Bernhard Schmidt; Thomas Flohr; Cynthia H. McCollough; Lifeng Yu

doi:10.1117/12.2549780

16 March 2020 Multi-energy CT with triple x-ray beams: a feasibility animal study

Liqiang Ren, Kishore Rajendran, Joel G. Fletcher, Thomas Allmendinger, Ahmed Halaweish, Bernhard Schmidt, Thomas Flohr, Cynthia H. McCollough, Lifeng Yu

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Proceedings Volume 11312, Medical Imaging 2020: Physics of Medical Imaging; 113121R (2020) https://doi.org/10.1117/12.2549780
Event: SPIE Medical Imaging, 2020, Houston, Texas, United States

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.

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Liqiang Ren, Kishore Rajendran, Joel G. Fletcher, Thomas Allmendinger, Ahmed Halaweish, Bernhard Schmidt, Thomas Flohr, Cynthia H. McCollough, and Lifeng Yu "Multi-energy CT with triple x-ray beams: a feasibility animal study", Proc. SPIE 11312, Medical Imaging 2020: Physics of Medical Imaging, 113121R (16 March 2020); https://doi.org/10.1117/12.2549780

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KEYWORDS

X-ray computed tomography

Bismuth

Iodine

X-rays

Gold

Scanners

Tin

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