Added Value in Combined Use of Fusion Imaging and Contrast-enhanced Ultrasonography

Inclusion Criteria: * Patients scheduled for ultrasound biopsy to confirm local liver lesions * Adults over 18 * Patients who underwent multi-phasic liver CT or MRI within 6 weeks prior to the procedure * Patients who understand and agree to the explanation and consent form and submit the consent form Exclusion Criteria: * Non-adaptive patients with ultrasound contrast agents (eg acute respiratory failure, heart disease, egg allergy, pregnant women, lactating women) * Those who have difficulty obtaining proper liver ultrasound images A. Patient cooperation is not possible B. If it is difficult to obtain an image that is appropriate for the researcher's judgment (atrophy of the right lobe of the liver, a bowel is located between the liver and the abdominal wall, etc.)