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Results: 3

1.
Figure 2:

Figure 2:. From: In Vivo Differentiation of Complementary Contrast Media at Dual-Energy CT.

Coronal dual-energy thoracoabdominal images obtained in rabbit after administration of luminal enteric bismuth subsalicylate and iodinated vascular contrast material. Images are rendered as, A, 70-keV virtual monochromatic image, B, bismuth density map, C, iodine density map, and D, color composite of bismuth and iodine density maps. Note enhancement of small bowel wall visible on C and D but obscured by luminal contrast medium on A.

John Mongan, et al. Radiology. 2012 October;265(1):267-272.
2.
Figure 1:

Figure 1:. From: In Vivo Differentiation of Complementary Contrast Media at Dual-Energy CT.

Images of tungsten-iodine solution phantoms rendered as, A, 80-keV virtual monochromatic scan, B, water and tungsten density map, and, C, iodine density map. The uniform CT attenuation across all phantoms seen on virtual monochromatic CT scan (A) is resolved at dual-energy CT into opposing gradients of tungsten and iodine contrast with a distinctly different attenuation in each phantom. Quantitative data are derived from dual-energy CT and represent mean attenuation at 80 keV (A), mean concentration of water that would produce attenuation equivalent to that due to water and tungsten in each phantom (B), and mean concentration of iodine in each phantom (C).

John Mongan, et al. Radiology. 2012 October;265(1):267-272.
3.
Figure 3:

Figure 3:. From: In Vivo Differentiation of Complementary Contrast Media at Dual-Energy CT.

Coronal dual-energy abdominal CT images in rabbit examined simultaneously in the arterial phase with iodinated contrast medium and in the venous phase with a tungsten-based vascular contrast medium. Images are rendered as, A, 140-keV virtual monochromatic image, B, water and tungsten density map, C, maximum intensity projection iodine density map, and, D, color composite of maximum intensity projection tungsten and iodine density maps. Contrast media cannot be readily differentiated on image simulating conventional CT scan (A) but are clearly resolved as being in venous phase on B and in angiographic phase on C. Color composite image (D) demonstrates excellent registration between images in the two simultaneously acquired phases.

John Mongan, et al. Radiology. 2012 October;265(1):267-272.

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