1.5 Harmonic Imaging Sonography with microbubble contrast agent improves characterization of hepatocellular carcinoma

Figure 6 A 73-year- old man with C-type cirrhosis and HCC (16. 5 mm in diameter) in the right liver who had undergone transcatheter arterial chemoembolization therapy with iodized oil and an anticancer drug. A : Transverse CT image with iodized oil obtained 7 d after treatment shows incomplete retention of iodized oil within the nodule; B and C: 1.5 Harmonic Imaging Sonography images obtained 35 s (B) and 5 min (C) after injection show partial enhancement. Right oblique 1.5 Harmonic Imaging Sonography image depicts residual tumor vessels within the tumor and subcapsular area (arrows), which is suggestive of possible future recurrence in this region.