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Table 3 Predictive value of CT perfusion for Response in TACE-/RFA-treated lesions by Receiver Operating Characteristic Curve (ROC)

From: CT perfusion for response evaluation after interventional ablation of hepatocellular carcinoma: a prospective study

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*