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Table 2: Comparison of lesion detectability according to the types of MR images and enhancing lesion size
Wave-T1-SPACE Standard SPACE P^{^a}
No. of enhancing lesions (<5 mm) (mean) 
    Observer 1 1.61 (SD, 0.29) 2.84 (SD, 0.47) <.001
    Observer 2 1.41 (SD, 0.19) 2.68 (SD, 0.43) <.001
    Interobserver agreement^{^b} 0.72 (0.59–0.84) 0.81 (0.74–0.88) <.001
No. of enhancing lesions (>5 mm) (mean) 
    Observer 1 1.34 (SD, 0.28) 1.32 (SD, 0.27) .66
    Observer 2 1.29 (SD, 0.27) 1.29 (SD, 0.27) .26
    Interobserver agreement^{^b} 0.95 (0.91–1.00) 1.00 (0.99–1.00) <.001
↵a P values derived from the Wilcoxon signed-rank test.
↵b Values were calculated using κ statistics and numbers in parentheses are 95% CIs.

	Wave-T1-SPACE	Standard SPACE	P^{^a}
No. of enhancing lesions (<5 mm) (mean)
Observer 1	1.61 (SD, 0.29)	2.84 (SD, 0.47)	<.001
Observer 2	1.41 (SD, 0.19)	2.68 (SD, 0.43)	<.001
Interobserver agreement^{^b}	0.72 (0.59–0.84)	0.81 (0.74–0.88)	<.001
No. of enhancing lesions (>5 mm) (mean)
Observer 1	1.34 (SD, 0.28)	1.32 (SD, 0.27)	.66
Observer 2	1.29 (SD, 0.27)	1.29 (SD, 0.27)	.26
Interobserver agreement^{^b}	0.95 (0.91–1.00)	1.00 (0.99–1.00)	<.001