Table 2:

Accuracy, sensitivity, specificity, PPV, and NPV for each imaging modality

	CE-MRI	PET	SPECT	MR ASL
Accuracy	46.2%	78.6%	57.1%	92.9%
Sensitivity	–	83.3%	50.0%	83.3%
Specificity	–	75.0%	62.5%	100.0%
PPV	–	71.4%	50.0%	100.0%
NPV	–	85.7%	62.5%	88.9%

Note:— – indicates unable to calculate; CE-MRI were all positive for tumor progression.