Table 6. Gray levels along profile line without and with MAR.

	Pixel numbers 4–6	Pixel numbers 8–17
Condition	Mean ± SE	Intercept (Pixel 8) ± SE	Slope ± SE
Metal (without MAR)	250.9 ± 0.66	12.3 ± 2.4	6.28 ± 0.41a
Metal (with MAR)	250.9 ± 0.66	74.2 ± 2.4b	0.35 ± 0.41b

MAR, metal artefact reduction; SE, standard error.

^aSignificantly different from zero (p ≤ 0.005).

^bSignificantly different from metal (without MAR) (p ≤ 0.005).