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Fig. 5C —Simulations of artifacts generated by bubble motion during CT acquisition. First column shows acquisition process; center column, resulting sinogram after filtering; and last column, reconstructed image. Three viewing directions (V1 = 0°, V2 = 90°, V3 = 180°) are shown for 180° acquisition and for corresponding rows in sinogram. Arrows indicate distance traveled by bubble during acquisition. Gantry rotation periods of 0.5 (C) and 1.0 (D) second.