Application Of Contrast-enhanced Ultrasound In The Diagnosis Of Focal Hepatic Nodules

Focal nodules of the liver are common,and can be divided into two types: malignant focal nodules and benign focal nodules.Malignant focal nodules including hepatocellular carcinoma,Intrahepatic Cholangiocellular Carcinoma and metastatic liver cancer,benign focal nodular hepatic hemangioma,focal nodular hyperplasia and hepatic adenoma,liver abscess,inflammatory pseudotumor,hepatic tuberculosis etc..Because of the advantages of no radiation,no trauma,convenience,low price and wide applicability,conventional color Doppler ultrasound is the preferred method for liver examination.However,because of the diversity of color Doppler ultrasound in the diagnosis of focal hepatic nodules,there are many similarities,so it is difficult to identify.Contrast enhanced ultrasound(CEUS)can objectively reflect the blood perfusion of tissue microvessels,and greatly improve the sensitivity and specificity of ultrasound in the diagnosis of focal hepatic nodules.[1] Objective:Objective to investigate the value of contrast-enhanced ultrasonography in the diagnosis and differential diagnosis of focal hepatic nodules.Method:A retrospective analysis of 2014 1 to 2016 1 in our hospital in 93 patients with pathologically proved hepatic focal nodular patients ultrasound results,clinical examination,record the patient's age and gender index;the overall situation assessment of the patient's liver,there is no fatty liver or liver cirrhosis;record size,number and location of lesions in two dimensional ultrasound,boundary the internal echo,and color Doppler blood flow;analysis of the characteristics of ultrasound images of the lesion,recording the arterial phase,portal venous phase and delayed phase enhancement,enhanced recording start time,peak time,regression time.Result:93 cases of liver focal nodular lesions in the 119 patients,71 right hepatic lobe,48 left hepatic lobe,including 28 hepatocellular carcinomas,1 intrahepatic cholangiocellular carcinoma,18 metastatic liver cancer,26 hepatic hemangioma,20 focal nodular hyperplasia,8 hepatocellular adenoma,14 liver abscess,4 hepatic tuberculosis?The enhancement pattern of these lesions changes dynamically with time.The majority of lesions in the arterial phase,portal venous phase and delayed phase has its specific performance.Conclusion:Contrast enhanced ultrasound(CEUS)can objectively reflect the blood perfusion of tissue capillaries,which is of great value in the differential diagnosis of liver lesions.