Table 3 Predictive value of CT perfusion for Response in TACE-/RFA-treated lesions by Receiver Operating Characteristic Curve (ROC)
CT perfusion (treated lesions) | TACE | RFA | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
AUC | Cut off | Sens% | Spec% | P value | AUC | Cut off | Sens% | Spec% | P-value | |
BF (ml/min/100gm) | 0.968 | ≤ 122 | 100 | 83.3 | < 0.0001* | 1 | ≤ 170 | 100 | 100 | < 0.0001* |
BV (ml/100gm) | 0.685 | ≤ 9 | 71.43 | 91.67 | 0.0691 | 1 | ≤ 11 | 100 | 100 | < 0.0001* |
Mean transit time (sec) | 0.933 | > 10 | 90.48 | 100 | < 0.0001* | 0.598 | > 13.9 | 36.36 | 100 | 0.2977 |
Arterial fraction | 0.671 | > 0.4 | 76.19 | 50 | 0.0771 | 0.703 | > 0.2 | 86.36 | 66.67 | 0.0537 |
Permeability(ml/min/100gm) | 0.938 | ≤ 14 | 100 | 83.33 | < 0.0001* | 0.806 | ≤ 11 | 77.27 | 80 | 0.0001* |
HU non contrast | 1 | > 68 | 100 | 100 | < 0.0001* | 0.618 | > 49 | 36.36 | 100 | 0.2017 |
HU arterial | 0.980 | > 104 | 90.48 | 100 | < 0.0001* | 1 | ≤ 55 | 100 | 100 | < 0.0001* |
HU porto venous | 0.998 | > 98 | 95.24 | 100 | < 0.0001 | 0.773 | ≤ 53 | 63.64 | 80 | 0.0005* |