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. 2012 Nov 27;39(12):7507–7517. doi: 10.1118/1.4762814

Figure 1.

Figure 1

(a) CIRS Electron Density Phantom, CT images of the ED phantom (b) without metal implants, (c) with a unilateral metal implant, and (d) with bilateral metal implants. The physical density and electron density of each plug are listed in Table 1. Either water-equivalent plugs or metal implants were inserted in the positions A and B to simulate metal artifact-free, single or bilateral metal implant images. Label “R” shown in panel (b) represents the right side of the phantom. The image display window width is 400 HU, and window level is 800 HU.