Role of adding T2 mapping sequence to the routine MR imaging protocol in the assessment of articular knee cartilage in osteoarthritis

Egyptian Journal of Radiology and Nuclear Medicine

Table 2 Routine MRI findings and T2 values among case and control groups

		Control group	Patient group	Test value	p value	Sig.
		No. = 20	No. = 30	Test value	p value	Sig.
Routine MRI	Normal by MRI	20 (100.0%)	8 (26.7%)	26.190^a	0.001	HS
Routine MRI	Abnormal by MRI	0 (0.0%)	22 (73.3%)	26.190^a	0.001	HS
T2 value (ms)	Mean±SD	39.30 ± 10.00	63.90 ± 9.14	−8.984^b	0.001	HS
T2 value (ms)	Range	31-66	46-87	−8.984^b	0.001	HS
T2 value (ms)	Normal by T2 map	18 (90.0%)	1 (3.3%)	38.257^a	0.001	HS
T2 value (ms)	Abnormal by T2 map	2 (10.0%)	29 (96.7%)	38.257^a	0.001	HS

p value >0.05: non significant (NS); p value <0.05: significant (S); p value< 0.01: highly significant (HS)
^aChi-square test
^bIndependent t test