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Egyptian Journal of Radiology and Nuclear Medicine
Fig. 5 | Egyptian Journal of Radiology and Nuclear Medicine

Fig. 5

From: The role of dynamic and diffusion MR imaging in therapeutic response assessment after microwave ablation of hepatocellular carcinoma using LI-RADS v2018 treatment response algorithm

Fig. 5

Follow up after 6 months for the same patient in Fig. 4 underwent another session of MWA for the viable nodule. a Axial T2 WIs, b Axial T1 WIs showing the new ablation zone within the right hepatic lobe “yellow arrows” elicits high T1 and low T2 signal (coagulation necrosis). c Diffusion-weighted images show low signal of the ablation d ADC map showed the high ADC values for both ablation zones (1.4 x 10-3 mm2/s and 1.3 x 10-3 mm2/s ). e axial subtracted arterial phase T1 image, and f delayed phase showing marginal enhancement of the ablation zones denoting scar tissue formation with regression in size of the old ablation zone (LR-TR nonviable)

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