Can DKI-MRI predict recurrence and invasion of peritumoral zone of hepatocellular carcinoma after transcatheter arterial chemoembolization?

Figure 2 Representative maps of transcatheter arterial chemoembolization-treated and recurrent hepatocellular carcinoma foci. The patient was a 46-year-old man with transcatheter arterial chemoembolization-treated and recurrent hepatocellular carcinoma foci. A: Diffusion map with b = 0 s/mm²; B: Maps of mean kurtosis (MK); C: Maps of mean diffusivity (MD); D: Maps of radial kurtosis (KR); E: Maps of axial kurtosis (KA); F: Maps of axial diffusivity (DA); G: Maps of radial diffusivity (DR); H: Maps of anisotropy coefficient of kurtosis (FAk). In the first map (A), the region of interest (ROI) (1) corresponds to the arrow pointing to a new lesion. The peritumoral zone (distance < 2 cm) refers to ROI (2) (red circle), and far-tumoral zone (diameter > 5 cm) refers to ROI (3) (green square).