Skip to main content
Egyptian Journal of Radiology and Nuclear Medicine
Fig. 2 | Egyptian Journal of Radiology and Nuclear Medicine

Fig. 2

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

Fig. 2

A 60-year-old male patient with hepatocellular carcinoma on top of liver cirrhosis underwent radiofrequency ablation of two left hepatic lobe focal lesions. A Axial T1- pre-contrast image shows two heterogeneous but mostly hyperintense left lobe hepatic focal lesions (open yellow and red arrows). B, C Axial dynamic MR arterial and delayed phases show the smaller hepatic focal lesion (open yellow arrow) is hyperintense in T1 and arterial phase with relative washout in the delayed phase. The other focal lesion (open red arrow) showed suspected enhancing nodule with wash out in the delayed phase. D Subtraction image of the smaller focal lesion (open yellow arrow) showed no evidence of enhancing viable tumoral tissue. The subtraction of the larger focal lesion (open red arrow) on the other hand confirms enhancing viable nodule seen at about 6–7 o'clock position. E The color map images of the mural residual nodule shows enhancement relative to the nearby ablated zone (open red arrow). F Enhancement curve (time–signal intensity) of the residual mural nodule shows arterial enhancement with rapid wash out

Back to article page