Objective To investigate the clinical application of ultrasound-guided percutaneous puncture aspiration and sclerotherapy of liver hydatid cysts.Methods Thirty-eight patients of hepatic hydatid cysts underwent ultrasound-guided percutaneous puncture aspiration and sclerotherapy;then 20%-25%septic hypertonic saline or 95%absolute alcohol were injected into the cysts (the volume was about 25%-50%of the aspirated fluid) ;and the fluid was reaspirated after 5-15 min.At last,5-10 ml sclerosing agent was injected again.Oral albendazole 30-50 mg/kg was administrated to all patients before and after the above procedures.Ultrasonic follow-up was performed at 3-month interval in the first year and once a year afterwards.Results The successful rate of once puncture was 100%.Aher 6 months,cysts volume reduced 50% in 16 patients,reduced 30% in 22 patients.One year later,34 patients were cured,3 were effectively treated and 1 was improved.All hydatid cysts volume gradually decreased and calcification occurred.The total cure rate was 100%. Conclusion Ultrasound-guided percutaneous puncture aspiration and sclerotherapy is a safe,effective and reliable treatment of liver hydatid cysts.

OBJECTIVE To evaluate the quality of different sources of Tibetan medicine "Jiawa" by the spectrum-effect relationship. METHODS The HPLC fingerprints of 17 batches of "Jiawa" were analyzed by similarity evaluation, cluster analysis and principal component analysis. Gray correlation degree analysis was used to study the relationship between 13 common fingerprint peaks and DPPH/ABTS radical scavenging capacity of "Jiawa". Due to high correlation with antioxidant activity, the content of ferulic acid was determined. RESULTS The 17 batches of "Jiawa" samples showed varied greatly in fingerprint characteristics, antioxidant activity and content of ferulic acid, which divided into group A and group B. Osmorhiza aristata (group A) showed low similarity in both chemical components and concentration with other samples, should not be used as "Jiawa". Group B included mainstreaming "Jiawa" products in the market(Pleurospermum hookeri, Pleurospermum szechenyii, Vicatia thibetica, Sphallerocarpua gracilis), showed some difference within group. Vicatia thibetica from Linzhi showed the best antioxidant activity and the highest of ferulic acid, while those from Lhasa and its surrounding areas had good antioxidant activity, and the ferulic acid content was moderate. Samples from Aba and Changdu had the minimum level in both antioxidant activity and ferulic acid content. CONCLUSION Ferulic acid is closely related to the antioxidant capacity of "Jiawa", which can be used as an important target to evaluate the quality of Tibetan medicine "Jiawa".