Monitoring the efficacy of tumor necrosis factor alpha antagonists in the treatment of Ankylosing spondylarthritis: a pilot study based on MR relaxometry technique

Table 4 Comparison of diagnostic efficacy of sacroiliac joint sacral and iliac relaxation time values

		AUC	sensitivity	specificity	P
Control group-case group	T1-mapping(ms) sacral	0.912	0.788	0.933	< 0.001
	T1-mapping(ms) iliac	0.935	0.869	0.933	< 0.001
	T2*-mapping(ms) sacral	0.798	0.576	0.933	< 0.001
	T2*-mapping(ms) iliac	0.802	0.556	0.933	< 0.001
Control group-inactive group	T1-mapping(ms) sacral	0.840	0.900	0.733	0.001
	T1-mapping(ms) iliac	0.920	0.900	0.867	< 0.001
	T2*-mapping(ms) sacral	0.718	0.650	0.800	0.029
	T2*-mapping(ms) iliac	0.765	0.800	0.667	0.008
Control group-active group	T1-mapping(ms) sacral	0.930	0.848	0.933	< 0.001
	T1-mapping(ms) iliac	0.939	0.899	0.933	< 0.001
	T2*-mapping(ms) sacral	0.819	0.633	0.933	< 0.001
	T2*-mapping(ms) iliac	0.811	0.582	0.933	< 0.001
Inactive group-active group	T1-mapping(ms) sacral	0.795	0.671	0.900	< 0.001
	T1-mapping(ms) iliac	0.770	0.709	0.800	< 0.001
	T2*-mapping(ms) sacral	0.674	0.595	0.750	0.017
	T2*-mapping(ms) iliac	0.643	0.430	0.950	0.048

ISSN: 1471-2342