Egyptian Journal of Radiology and Nuclear Medicine

Table 4 Diagnostic performance of DCE, DWI, ADC, normalized ADC liver and normalized ADC spleen

From: Role of DWI in evaluation of HCC after radiofrequency ablation compared to dynamic MRI using MRI (3 T)

	DCE	DWI	ADC^a	nADC liver^b	nADC spleen^c
Viable	15	15	12	13	14
Non-viable	25	25	28	28	26
TP	15	12	12	11	12
TN	25	22	25	24	23
FP	0	3	0	1	2
FN	0	3	3	4	3
Sensitivity	100%	80%	80%	73.3%	80%
Specificity	100%	88%	100%	96%	92%
PPV	100%	80%	100%	91.7%	85.7%
NPV	100%	88%	89.3%	85.7%	88.5%
Accuracy	100%	85%	97.1%	92.8%	91.9%

nADC normalized ADC, TP true positive, TN true negative, FP false positive, FN false negative
^aADC cutoff value less than (1.01 × 10⁻³ mm²/s)
^bnormalized ADC liver cutoff value less than (0.81)
^cnormalized ADC spleen cutoff value less than (1.22)

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