Analysis of clinical effect of high-intensity focused ultrasound on liver cancer

Figure 1 A 42-year-old male with hepatocellular carcinoma. A: MRI T₁-weighted images before HIFU treatment showed that liver tumor of right-posterior lobe was 115 mm × 100 mm × 66 mm; B: MRI enhanced imaging before HIFU revealed that enhancement of mass in liver right-posterior lobe was higher than that of surrounding normal liver tissues; C: MRI T₁-weighted imaging 11 mo after HIFU revealed that liver tumor of right-posterior lobe obviously decreased in size (50 mm × 55 mm × 60 mm); D, E: MRI enhanced imaging (cross section and coronal section) 11 mo after HIFU revealed that liver tumor had shrunk obviously, blood supply of tumor was eliminated, the tumor therapeutic region had coagulation necrosis.

Figure 2 A 55-year-old man with metastatic hepatocarcinoma in sigmoid cancer postoperation. A: MRI images before HIFU treatment showed that liver tumor of right-posterior lobe was 40 mm × 30 mm × 30 mm; B: MRI images 2 wk after HIFU revealed that liver tumor of right-posterior lobe obviously decreased in size (20 mm × 20 mm × 15 mm).

Figure 3 A 54-year-old man with primary carcinoma of liver in right lobe. A: CT enhanced imaging before HIFU treatment revealed that enhancement of mass in liver right-posterior lobe was higher than that of surrounding normal liver tissues (AFP: 5516 μg/L); B, C: MRI enhanced imaging (cross section and coronal section) 2 mo after HIFU revealed that necrotic tissue in the therapeutic region of the tumor was not enhanced (AFP: 183 μg/L).