5 cm).The survival rates and the diminished rates of tumors in size were analysed comparatively.Results For small hepatocellular carcinoma,the diminished rates of tumor's size were higher in group PEI than that in group TACE and group CST,and higher in group RF than that in group TACE(P0.05).For large hepatocellular carcinoma,the diminished rates of tumor's size were higher in group TACE and group CST than that in group RF(P

Objective: To study the refinement of general flavone of sophora flavescens decoction by macroporous resins combined with ceramic microfiltration membranes (MR-CM), and compare it with macroporous resin combined with alcohol-sedimentation (MR-AS). Methods: UV-spectrophotometry method was applied to analyze the content of general flavone of sophora flavescens. Results: The porous ratio and effect of eliminating impurity of general flavone of sophora flavescens decoction by MR-CM method was higher than those by MR-AS method, but the MR-CM method is of simple operation and short period.Conclusion: MR-CM method is better than alcohol-sedimentation-macroporous resin method in refining of general flavone of sophora flavescens decoction.

Objective To study the refining of Radix Sophorae Flavescentis (RSF) decoction by microfiltration combined with ultrafiltration method,and to compare the refining effect with that refined by alcohol sedimentation method.Methods HPLC was applied to analyze the content of oxymatrine,ultroviolet (UV) spectrophotometry was used to determine the content of total flavonoids in RSF decoction,and suitable concentration of NaOH solution for the detergent were chosen in order to wash the membrane.Results The refining effect is better and the recovery ratio of efficient components is higher in RSF decoction refined by microfiltration combined with ultrafiltration method than in those refined by alcohol sedimentation method.Microfiltration combined with ultrafiltration method is of simple operation and short period,and ultrafiltration membranes can be easily washed.Conclusion The microfiltration combined with ultrafiltration method can be used as the alternative for the traditional alcohol sedimentation method in refining of RSF decoction.

Objective To analyze the clinical and CT manifestations of the chest and abdomen lymphangioleiomyomatosis (LAM). Methods The clinical and CT manifestations of 13 patients with LAM proved histopathologically were reviewed retrospectively.Results Twelve patients onset with intrapulmonary manifestations all had progressive dyspnea, other symptoms included pneumothorax of recurrent attacks, chest distress, hemoptysis, cough, chylothorax and so on. During the course of disease, 12 patients had no extrapulmonary symptoms, abdominal great goiter was found unintentionally in the rest one without any intrapulmonary symptoms. Pectoral CT manifestations included sporadic or asystematic cysts in pulmones with size of 2-20 mm, and most had thin and clear capsule wall. The lung parenchyma among cysts was mostly normal. Four patients had pneumatocele, 2 had pleural effusion. Abdominal CT was performed in 10 patients and 7 had abnormal findings: renal angiolipoleiomyoma (ALL) in 3 including one had retroperitoneal multiple lymphangiomyomas and effussion and seroperitoneum, another 2 had multiple liver ALL and spleen accretion. The rest 4 patients included retroperitoneal lymphadenectasis in 2, seroperitoneum in one, as well as retroperitoneal lump and spleen accretion in one patient.Conclusion Pectoral and abdominal symptoms in LAM are not specific, but the CT manifestations somehow specific, which are helpful to the identification and early diagnosis of LAM.

Object To study the adsorption function of macroporous resin AB 8 for the purification of total flavones in Sophora flavescens Ait and the effects of concentration, pH, flow rate of the adsorbate and eluant Methods UV spectrophotometry was used to analyze the content of total flavone in S flavescens Results The appropriate adsorption conditions were: concentration of Sophora extract, 0 285 mg/mL ; pH=4; flow rate 3 BV/h, when 50% alcohol was used as eluant, the effect of desorption was satisfactory Conclusion AB 8 resin can be used to refine the total flavone in S flavescens

Objective To analyzes the CT manifestations of pulmonary Langerhans cell histiocytosis (PLCH). Methods CT features of 11 patients with PLCH proved pathologically were analyzed retrospectively. Results The main findings in 11 PLCHs were cysts and nodules. Two cases only had cysts,and 1 only had nodules, which most had cavitations. The other 8 cases showed cysts and nodules with 4 cases mainly manifested with cysts and nine mainly manifested with nodules. Two cases had pulmonary interstitial changes. One case only had cysts in the left upper lung field and 10 cases had lesions not only in the upper and middle but in the lower lung field, which 2 cases had more lesions in the lower and costophrenic angle field and 8 cases had less lesions in the costo-phrenic angle field. Three of these 8 cases had more lesions in the superior lobe and apical segment of lower lobe. Conclusion CT manifestations of PLCH are helpful for the early diagnosis.

Objective To analyze CT manifestations of chest wall Askin tumor and to illustrate its CT diagnostic and differentially diagnostic key points.Methods Eleven cases of chest wall Askin tumors were pathologically confirmed in our hospital between May 2006 and November 2014.Of them,10 cases were children and adolescents,and 9 cases had chest pain as the first symptom.All patients received plain CT scan,while 7 cases received contrast enhanced scan.CT signs of this group were retrospectively analyzed,including the location,quantity,shape,size,density,adjacent tissue invasion and distant metastasis of the tumors.Results CT examination showed a single oval mass on the chest wall in all 11 cases.The tumor was located completely within the thoracic cavity in 10 cases,while a tumor's main part was within thoracic cavity.Nine tumors had long diameters of more than 9 cm.All the tumors were heterogeneous without calcification,wherein 10 cases showed necrosis and cystic degeneration.On contrast enhanced scan,7 cases showed heterogeneously mild to moderate enhancement.All tumors invaded adjacent tissues,including 7 cases of bone damage of a single rib,and 7 cases of pleural involvement,wherein 6 cases had pleural effusion.No remote metastases were found in this group.Conclusions CT manifestations of Askin tumors of chest wall have some characteristics,and familiarity with these manifestations is conducive to diagnosis and differential diagnosis of this disease.

Objective To study the accuracy and practical value in the clinical diagnosis of Budd-Chiari syndrome by B ultrasonography and postcaval vein contrast examination.Methods 42 patients received B ultrasonographic scanning of the postcaval vein and the liver before the use of angiography.Angiography included Seldinger single-direction postcaval intubation(14 cases) and double-direction intubation(28 cases),and quick photographic observation.Results B ultrasonography showed that 18 cases had postcaval segmental or membranous obstruction 24 cases had postcaval stricture at its opening,and 20 cases complicated with single right hepatic stricture,8 cases with left vein stricture and 12 cases with central hepatic caval stricture.Communicating branched vessels were formed among 16 cases between hepatic vessels were formed among 8 cases between hepatic left-middle,and middle-right hepatic veins each.Reticular communicating vessels were formed in 8 cases between left middle and right.5 cases had slight postcaval stricture and their blood flowed non-obstructedly postcaval veinography showed 12 cases had postcaval stricture at proximal end,28 cases total segmental or membranous obstruction.There were 8 cases respectively for hepatic central vein and right hepatic vein development each.The remaining 26 cases had no hepatic venous development.There were 30 cases who had obvious branched circulaltion formation,and even their branched circular vessels had tumous-like expansion.Conclusion B ultrasonography,as a way of easy,and no-trauma examination,is the first-choice means to screen the patients.Postcaval angiography is a means to diagnose Budd-Chiari syndrome,which is neccessary for the cases with total segmental or membranous obstruction to have double-direction postcaval angiography,especially for the cases to have interventive therapy.

Objective To analyze the clinical and CT manifestations of lung involvement of microscopic polyangiitis (MPA). Methods The clinical manifestations,laboratory ANCA examinations and CT features of 16 patients with lung involvement of MPA were retrospectively reviewed. Results (1) Clinical manifestations: 11 cases had hemoptysis or bloody sputum. Eight cases, who first presented with lung symptoms, were misdiagnosed with other lung diseases. All cases had mulfiorgans injuries involved kidney, cardiovascular and endocrine system, etc. (2) Laboratory examinations: all cases were pANCA positive and 14 cases were MPO-ANCA positive. (3) CT examinations: all cases had interstitial changes, 15 cases were interstitial predominately and 1 case was parenchymal predominately. Eight cases had pulmonary interstitial fibrosis and 11 cases had consolidation and 6 of them had both interstitial and consolidation. Two case had accompanied multiple nodulesand one of them had multiple cavitates. Six cases had mediastinal lymphoadenopathy. Conclusions Most of MPA patients have clinical manifestations of hemoptysis and bloody sputum, the CT examination show interstitial lung disease. Middle or advanced age population presented with above-mentioned manifestations should be alert to MPA, whether or not they have kidney and other organs injury.

Objective To study the effect of basic fibroblast growth factor(bFGF) on neuron-like differentiation of superparamagnetic iron oxide nanoparticles (SPIONs)-labeled amniotic membrane-derived mesenchymal stem cell.Methods Cells were cultured from enzymatic-digested amniotic membrane tissue.After that,the following steps were taken:(1) Mesenchymal stem cells derived from amniotic membrane were identified by using cell morphology,MTT method and flow cytometry.(2)SPIONs were used to label amniotic membrane-derived mesenchymal stem.(3)bFGF was imported to induce the neuron-like differentiation of SPIONs-labeled amniotic membrane-derived mesenchymal stem cell.Results (1) Primary cultures of P3,amniotic membrane-derived mesenchymal stem cell were fibroblast-like and expression of surface molecules CD29,CD44,CD90 and CD105 was detected,while expression of CD31,CD34,CD45 and CD106 was negative.(2) SPIONs of no more than 14.0 μg/ml are safe to label amniotic membrane-derived mesenchymal stem cells.Cell activity is more than 80％ and expression of surface molecules CD29,CD44,CD90 and CD105 is positive.(3)RT-PCR and immunocytochemistry analysis showed that 10.0 ng/ml bFGF induced neuron-like differentiation of amniotic membrane-derived mesenchymal stem cell (14 μg/ml SPIONs-labeled).Conclusions Enzymatic digestion and cell adherent culture method can be used to isolate mesenchymal stem cells from amniotic membrane.SPIONs of no more than 14.0 μg/ml are safe to label amniotic membrance-derived mesenchymal stem cells and have no effect on the cell activity.Neuron-like differentiation of amniotic membrane-derived mesenchymal stem cell can be induced with 10.0 ng/ml bFGF.