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. 2017 Apr 22;2(3):515–521. doi: 10.1016/j.adro.2017.04.003

Figure 5.

Figure 5

Detail from axial slices of the single-phase computed tomography at the end of expiration. The top row is a low-dose scan (17.5 mGy CTDIvol), and the bottom row is a standard-dose scan (29.2 mGy CTDIvol). The images on the left are reconstructed with the standard filtered back projection algorithm (B30f), and the images on the right are reconstructed with SAFIRE (I30f#5). The maroon ring is a region of interest (ROI) inside the gross tumor volume (GTV), and the teal ring is an ROI adjacent to the GTV.