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. Author manuscript; available in PMC: 2021 Jan 1.
Published in final edited form as: Med Phys. 2019 Nov 19;47(1):64–74. doi: 10.1002/mp.13769

FIG. 6.

FIG. 6.

(a) Contrast-to-noise ratio (CNR) vs. noise level in phantom from (σ) 0 to 0.04. No tumor motion was introduced, and the radius of the tumor was fixed at 5 mm. (b) CNR vs phantom tumor size, with the radius varying from 2 to 30 mm, compared with the radius under zero motion and the radius fixed at 5 mm (bottom). (c) CNR vs phantom tumor motion, simulated from 0 to 5 mm for tumor size, with a radius of 5 mm. The noise level and radius of the tumor were kept at 0.01 and 5 mm, respectively.