LAUSR

s S171 Methods: Twenty-four patients with 31 focal liver lesions were involved in our study, the lesions consisted of hepatocellular carcinoma (n55), Diffuse large B lymphoma (n51), adenoma (n51), metastatic lesions (n55), focal nodular hyperplasia (n52), hemangioma (n517). Nine lesions were pathologically diagnosed and 22 lesions were radiologically confirmed. The mean value of the largest diameter of the lesions was 3.9cm (1.1cm 8.5cm). All patients had been done SMI examination for the liver lesions, and at least had been done one of the listed imaging technology (contrast enhanced ultrasound, enhanced CT or enhanced MRI). The patients were divided into subgroups based on the characteristic of SMI results and compared the clinical value of SMI in diagnoses of focal liver lesions to the above three imaging technology. Results: The SMI manifestations of hemangiomas were described as three subgroups: diffuse dot-like type (n56); strip rim type (n58); nodular rim type (n53), the largest diameters of the three groups were obviously different (P50.0,,0.05) and these findings were corresponding to the enhanced ultrasound/CT/MRI. The hepatocellular carcinoma were described as two subgroup: diffuse honeycomb type (n52); strip trunk with tiny branches (n53). Four of the metastatic lesions were from breast cancer in one patient, the SMI manifestation was like the second type of hemangioma with strip rim; the other metastatic lesion was from pancreatic cancer had the same SMI type of lymphoma with thick rim type. All of the FNH was described as spoke-wheel type, the adenoma was described as diffuse honeycomb type. Conclusions: SMI technology made the evaluation of micro-vascular of focal liver lesions possible without any enhanced agents. The SMI type were obviously different from different lesions, which could provide additional diagnostic information. While some lesions had the same type, this result was need further research with large sample size.