Application of gemstone spectral imaging for efficacy evaluation in hepatocellular carcinoma after transarterial chemoembolization

Figure 4 Recurrence of hepatocellular cancer in the right lobe after transcatheter arterial chemoembolization. A: Sixty-eight keV monochromatic image showed obvious enlargement and enhancement of recurrent lesion in tumor edge (arrow); B: The effective iodine content of the recurrent lesion (29.89 ± 5.83) was significantly higher than that for normal liver parenchyma (10.0 ± 4.45), suggesting obvious enhancement and entry of contrast medium to the lesion; C: Digital subtraction angiography confirmed tumor stain in the recurrent lesion in parenchymal phase (arrow).