Fig. 4.

PCCT images of 3-D printed carotid phantom before and after image deconvolution. Lumen filled with (a) water, (b) $10\mathrm{mg}/\mathrm{mL}$ of iodine, (c) $20\mathrm{mg}/\mathrm{mL}$ of iodine, and (d) $30\mathrm{mg}/\mathrm{mL}$ of iodine. The line profile was obtained from the images in (d) in the region marked in black. A sharper delineation between the lumen and wall can be seen after deconvolution. The left images in (a)–(d) correspond to the original image, and the right images correspond to deconvolved images. Display window [$-400$, 150] HU for (a), [$-350$, 200] HU for (b), and [$-400$, 300] HU for (c) and (d). $\text{Scalebar}=3.81\mathrm{mm}$.