Table 4. Diagnostic accuracy measures for diagnosing LMS using different criterions to signify LMS.

Number of MR features present in a lesion	Reader	Sensitivity [95%CI; N]	Specificity [95%CI; N]	PPV [95%CI; N]	NPV [95%CI; N]	Accuracy [95% CI; N]
≥1 feature	1	1.00 [0.82-1.00;19/19]	0.55 [0.32-0.76;12/22]	0.66 [0.46-0.82;19/29]	1.00 [0.74-1.00;12/12]	0.76 [0.60-0.88;31/41]
	2	1.00 [0.82-1.00;19/19]	0.59 [0.36-0.79;13/22]	0.68 [0.48-0.84;19/28]	1.00 [0.75-1.00;13/13]	0.78 [0.62-0.89;32/41]
≥2 features present	1	1.00 [0.82-1.00;19/19]	0.82 [0.60-0.95;18/22]	0.83 [0.61-0.95;19/23]	1.00 [0.81-1.00;18/18]	0.90 [0.77-0.97;37/41]
	2	1.00 [0.82-1.00;19/19]	0.77 [0.55-0.92;17/22]	0.79 [0.58-0.93;19/24]	1.00 [0.80-1.00;17/17]	0.88 [0.74-0.96;36/41]
≥3 features present	1	1.00 [0.82-1.00;19/19]	0.95 [0.77-1.00;21/22]	0.95 [0.75-1.00;19/20]	1.00 [0.84-1.00;21/21]	0.98 [0.87-1.00;40/41]
	2	0.95 [0.74-1.00;18/19]	1.00 [0.85-1.00;22/22]	1.00 [0.81-1.00;18/18]	0.96 [0.78-1.00;22/23]	0.98 [0.87-1.00;40/41]
4 features present	1	0.58 [0.33-0.80;11/19]	1.00 [0.85-1.00;22/22]	1.00 [0.72-1.00;11/11]	0.73 [0.54-0.88;22/30]	0.80 [0.65-0.91;33/41]
	2	0.58 [0.33-0.80;11/19]	1.00 [0.85-1.00;22/22]	1.00 [0.72-1.00;11/11]	0.73 [0.54-0.88;22/30]	0.80 [0.65-0.91;33/41]

Note: MR magnetic resonance, PPV positive predictive value, NPV negative predictive value, CI confidence interval