High-resolution MRI of flexor tendon pulleys using a 16-channel hand coil: disease detection and differentiation of psoriatic and rheumatoid arthritis

Table 4 Mean values ± standard deviation and intergroup comparisons of flexor tendon pulley thickness in PsA, RA, and HC patients

Finger + pulley	PsA	RA	HC	PsA vs RA	PsA vs HC	RA vs HC
Finger + pulley	Pulley thickness in mm			p value
D2 A1	0.86 ± 0.14	0.63 ± 0.10	0.62 ± 0.16	< 0.001	< 0.001	0.99
D2 A2	0.79 ± 0.13	0.54 ± 0.09	0.6 ± 0.11	< 0.001	< 0.001	0.45
D3 A1	0.82 ± 0.19	0.6 ± 0.09	0.64 ± 0.11	< 0.001	0.002	0.76
D3 A2	0.83 ± 0.11	0.58 ± 0.12	0.66 ± 0.18	< 0.001	0.006	0.269
D4 A1	0.71 ± 0.16	0.6 ± 0.09	0.61 ± 0.09	0.03	0.09	0.94
D4 A2	0.79 ± 0.12	0.58 ± 0.12	0.63 ± 0.13	< 0.001	0.008	0.54
D5 A1	0.76 ± 0.21	0.58 ± 0.08	0.64 ± 0.13	0.005	0.1	0.56
D5 A2	0.71 ± 0.21	0.61 ± 0.08	0.61 ± 0.12	0.13	0.15	1
D2–5 A1	0.79 ± 0.18	0.6 ± 0.09	0.63 ± 0.13	< 0.001	< 0.001	0.74
D2–5 A2	0.78 ± 0.15	0.58 ± 0.22	0.63 ± 0.14	< 0.001	< 0.001	0.21
D2–5 A1 + 2	0.79 ± 0.17	0.59 ± 0.19	0.63 ± 0.13	< 0.001	< 0.001	0.35

After (adapted) Bonferroni correction, p values < 0.0167 were considered significant and are printed in bold type

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