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TABLE: Sensitivity and specificity of DW imaging and perfusion parameters in 134 patients
Technique Final Diagnosis Sensitivity (%) Specificity (%) PPV (%) NPV (%) FP FN
Positive Negative
DWI 
 Positive 101 1 94 96 99 81 1 6
 Negative 6 26 
CBV 
 Positive 78 0 74 100 100 50 0 28
 Negative 28 28 
CBF 
 Positive 89 1 84 96 99 59 1 18
 Negative 18 26 
MTT 
 Positive 89 1 84 96 99 59 1 18
 Negative 18 26 
Note.—FN indicates false-negative findings; FP, false-positive findings; NPV, negative predictive value; PPV, positive predictive value.

Technique	Final Diagnosis		Sensitivity (%)	Specificity (%)	PPV (%)	NPV (%)	FP	FN
Technique	Positive	Negative	Sensitivity (%)	Specificity (%)	PPV (%)	NPV (%)	FP	FN
DWI
Positive	101	1	94	96	99	81	1	6
Negative	6	26
CBV
Positive	78	0	74	100	100	50	0	28
Negative	28	28
CBF
Positive	89	1	84	96	99	59	1	18
Negative	18	26
MTT
Positive	89	1	84	96	99	59	1	18
Negative	18	26