Table 4.

Subjective image quality (2 readers).

Rating	LB - A	VMI - B	MARS VMI - C	ASIR VMI - D	p
mean ± SD	3.96 ± 0.58	4 ± 0.67	1.57 ± 0.5	4.25 ± 0.44	p < 0.001
median	4	4	2	4
quartiles 1–3	4–4	4–4	1–2	4–4.25	D > A,C B,A > C

p - Friedman test + post-hoc analysis (Wilcoxon paired tests with Bonferroni correction).

LB – Linearly Blended, VMI – Virtual Monoenergetic Images, MAR – Metal Artifacts Reduction, ASIR – Adaptative Statistical Reconstructions, SD – Standard Deviation, Q1 – Quartile 1, Q3 – Quartile 3.