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Table 2 T1 and T2 signal distribution characteristics in unresolved and resolved lesions based on subtraction MRI findings

From: Comparison between subtraction and dynamic MRI in assessing treatment response following radiofrequency ablation in patients with hepatocellular carcinoma

MRI images Subtraction dynamic MRI (n = 60) P value
Well-ablated
n = 44 (%)
Residual
n = 16 (%)
Non-enhanced T1 signal intensity
High 38 (86.4) 10 (62.5) 0.648
Heterogeneous 2 (4.5) 6 (37.5)
Iso-intense 4 (9.1) 0 (0)
T2 signal intensity
Intermediate 28 (63.6) 8 (50.0) 0.678
Low 14 (31.8) 6 (37.5)
Heterogeneous 2 (4.5) 2 (12.5)