Objective:To investigate the clinical effect of 595 nm pulsed dye laser treatment for superficial hemangiomas on different sites of infants(≤3 years old) .Methods:From January 2018 to January 2020, we retrospectively analyzed the data of infants with superficial hemangioma in our hospital. They were treated with 595 nm pulsed dye laser. The energy and frequency of laser treatment, the effects and adverse reactions were recorded. t-test, SNK- q test and Chi-square test were used to analyze the data. Results:A total of 437 infants were enrolled, including 168 male and 269 female. The ages ranged from 0 to 36 months. They were divided into different lesion sites as head (34 cases) , forehead (37 cases) , cheek (61 cases) , periocular (30 cases) , nose (21 cases) , lip (12 cases) , perioral (10 cases) , ear (16 cases) , neck (26 cases) , chest (36 cases) , abdomen (24 cases) , back (21 cases) , buttocks (12 cases) , perineum (14 cases) , upper arm and forearm (30 cases) , hand (25 cases) , thigh (18 cases) , and foot (10 cases) . The average treatment energy of each sites was 8.0 J/cm 2 , with no significant difference( P>0.05) . The average number of treatments on the head, forehead, cheek, periocular, nasal, lip, perioral and foot was higher than that on other sites, showing a statistical significance ( P<0.05) ; among them, the nasal and perioral parts had most treatments. The total effective rate was 96.57%(422/437). The complications happened in 35 cases(8.01%), including hypopigmentation(22 cases), hyperpigmentation(5 cases), atrophic scar (8 cases). Conclusions:595 nm pulsed dye laser has a good therapeutic effect on infantile superifcial hemangioma with low adverse effect. Hemangioma on different sites requires different times of treatment.

Objective:To investigate the clinical effect of 595 nm pulsed dye laser treatment for superficial hemangiomas on different sites of infants(≤3 years old) .Methods:From January 2018 to January 2020, we retrospectively analyzed the data of infants with superficial hemangioma in our hospital. They were treated with 595 nm pulsed dye laser. The energy and frequency of laser treatment, the effects and adverse reactions were recorded. t-test, SNK- q test and Chi-square test were used to analyze the data. Results:A total of 437 infants were enrolled, including 168 male and 269 female. The ages ranged from 0 to 36 months. They were divided into different lesion sites as head (34 cases) , forehead (37 cases) , cheek (61 cases) , periocular (30 cases) , nose (21 cases) , lip (12 cases) , perioral (10 cases) , ear (16 cases) , neck (26 cases) , chest (36 cases) , abdomen (24 cases) , back (21 cases) , buttocks (12 cases) , perineum (14 cases) , upper arm and forearm (30 cases) , hand (25 cases) , thigh (18 cases) , and foot (10 cases) . The average treatment energy of each sites was 8.0 J/cm 2 , with no significant difference( P>0.05) . The average number of treatments on the head, forehead, cheek, periocular, nasal, lip, perioral and foot was higher than that on other sites, showing a statistical significance ( P<0.05) ; among them, the nasal and perioral parts had most treatments. The total effective rate was 96.57%(422/437). The complications happened in 35 cases(8.01%), including hypopigmentation(22 cases), hyperpigmentation(5 cases), atrophic scar (8 cases). Conclusions:595 nm pulsed dye laser has a good therapeutic effect on infantile superifcial hemangioma with low adverse effect. Hemangioma on different sites requires different times of treatment.

Based on the distribution information of 110 samples and 55 environmental factors, Maxent model was used to predict the ecology suitability regions of Trollius chinensis. The study aims at providing theory basis for the cultivation of T. chinensis. The results showed that the Maxent model prediction result was good (AUC>0.9) and the main factors effecting the ecology suitability regions of T. chinensis were precipitation in July, standard deviation of seasonal variation of temperature, annual mean temperature, precipitation in August and altitude. The ecology suitable regions of T. chinensis mainly concentrated in Shanxi, Hebei, east of Inner Mongolia, west of Jilin and Liaoning, north of Shaanxi, south of Ningxia, east and south of Gansu, and east of Qinghai. The results indicated that except for traditional distribution regions, north of Shaanxi, south of Ningxia, east and south of Gansu, and east of Qinghai could selected as the regions for cultivation of T. chinensis. It provides theory basis for selecting suitable regions to cultivate T. chinensis.

Objective To compare the features of different heating modes cauterization mode and standard ablation mode of Cool-tip on coagulation zone and thermal field distribution in order to provide references for focused and accurate vascular occlusion and explore the primary efficacy of Cool-tip applied to intrahepatic vascular occlusion in living dogs Methods Ex-vivo porcine livers were ablated for 2 4 6 8 minites with cauterization mode and standard ablation mode respectively and the long- and short-axis diameters in the greatest dimension were compared The tissue temperature around the tip midpoint and end of the exposed part of radiofrequency electrode were measured under the circumstance of 4 min ablation by the two modes respectively Animal experiment the intrahepatic vessels of 2 Beagles were ablated with cauterization mode one procedure for each animal and contrast-enhanced ultrasound was used to evaluate the perfusion change of liver tissue Gross anatomy and pathological examination of the liver was performed after 1 week Results In the 2 min 4 min 6 min and 8 min ablation the coagulation volume of cauterization mode and standard ablation mode were 1 01 ± 0 41 cm 3 vs 2 95 ± 0 74 cm 3 1 47 ± 0 33 cm 3 vs 5 03±1 06 cm 3 2 29±0 49 cm 3 vs 9 23±2 53 cm 3 2 70±0 24 cm 3 vs 1 5 89±0 77 cm 3 The coagulation volume was significant smaller in cauterization mode than in standard ablation mode P <0 05 for all The peak temperature of cauterization mode presented on the tip of electrode which averaged 94 4℃ in maximum and maintain around 70 ℃ in the equilibrium phase The peak temperature of standard mode presented on the midpoint of the electrode which periodically variated between 70 ℃- 100 ℃ The result of the animal experiment showed that cauterization mode could be used to occlude the intrahepatic vessel in vivo which induced the ischemia and necrosis in the corresponding area Conclusions Cauterization mode and standard alation mode of Cool-tip have different characteristic in terms of coagulation zone and thermal distribution and carterization mode may have a promising application in intrahepatic vascular occlusion.

Objective To evaluate the clinical value of percutaneous ultrasound (US)-guided thermal ablation of intrahepatic cholangiocarcinoma. Methods 14 patients (19 nodules) with histolog-ically proven intrahepatic cholangiocarcinoma (ICC) were treated with percutaneous US-guided thermal ablation from Oct. 1998 to Aug. 2009 in our hospital. The local treatment response, complication and survival were retrospectively analyzed. Results 18 (18/19, 94.7%) nodules had complete necrosis, and 1 (1/19, 5.3%) nodule had residual tumor after ablation. There was no mortality associated with thermal ablation. Only 1 (1/14, 7.1%) patient developed portal vein thrombosis. The follow-up ranged from 1.3 to 72.9 months (mean, 19.0±15.1 months; median, 7.25 months), 10 (10/14,71.4%) patients survived less than 1 year, 2 (2/14,14.3%) survived 1-5 years, and 2 (2/14,14.3%) survived more than 5 years. Of the 14 patients, 9 (9/14, 64.3%) had died and 5 (5/14,35.7%) were alive. The causes of death included tumor progression (8/9, 88.9%) and liver failure (1/9, 11.1%). 9 (9/14,64.3%) patients developed recurrence on follow-up. The disease-free survival ranged from 1.1 to 72. 9 months (mean 16.6±26. 3 months; median 4.1 months). Conclusion Percutaneous US-guided thermal ablation therapy using microwave ablation (MWA) or radiofrequency ablation (RFA) is a safe and effective therapy for intrahepatic cholangiocarcinoma.

Objective To investigate the expression of transforming growth factor β1,transforming growth factor beta receptor(TBR)Ⅰ,TβR Ⅱ,Smad4 and C-Jun in rats with nonalcoholic fatty liver disease(NAFLD)and to find out the mechanisms of liver fibrosis in patients with NAFLD.Methods A total of 18 male SD rats were randomly divided into normal control group(n=9)and model group(n=9).The rats in control group were fed with normal diet,and those in model group were fed with fat-rich diet(consisted of 10%lard oil+2%cholesterol).An rats were sacrificed at the 20th week.The levels of TGFβ1,TβR Ⅰ and TβR Ⅱ mRNA were examined by RT-PCR.The expressions of TGFβ1 and Smad4 in liver tissue were detected by immunohistochemistry.The expression of C-Jun protein was detected by Western blotting.Results The NAFLD model was successfully established.The immunohistochemistry examination revealed that TGFβ1 and Smad4 were expressed weekly in control group,but strongly expressed in model group.RT-PCR showed that A values of TGFβ1,TβR Ⅰ and TβR Ⅱ mRNA were 0.46±0.12,5.z4±2.70 and 3.35±1.95,respectively,in model group,which were higher than those in control group(0.21±0.09,1.36±0.77 and 0.52±0.19,all P values＜0.01).The Western blotting results demonstrated that the expression of C-Jun protein in model group(0.93±0.41)was higher than that in control group (0.32±0.25,P=0.001).Conclusion TGFβ1/Smad4 signal pathway might be involved in the development of hepatic fibrosis in NAFLD.Blocking TGFβ1/Smad4 signal pathway will be helpful in treatment of NAFLD.

Objective To prepare phospholipid-based sulfur hexafluoride gas-filled microbubbles, which were designed for targeting microbubbles. Methods The microbubbles composed of DSPC and mPEG2000-PE were produced by film-sonication method,and were compared with SonoVue. In the physical chemistry characteristics studies, the morphology, particle diameter, concentration, pH value and osmotic pressure were investigated. In the echogenicity studies, contrast harmonic imaging technique was used to investigate the enhancement of vitro water sac and normal rabbit kidney parenchyma. Results The lipid microbubbles were well-distributed, round with air holes. The average diameter of self-made microbubbles and SonoVue were 2.25 μm and 2.50μm respectively. The average diameter of self-made microbubbles and SonoVue distributed from 0.4 μm to 10 μm and 0.2 μm to 10 μm,and 90% were under 6 μm and 8 μm respectively,the concentration were 5 x 108～10 x 108/ml and 1 x I08～5 x 108/ml respectively with a stability of 6 hours. In vitro water sac, the gray scale of self-made lipid microbubbles and SonoVue were 121.67±6.76 and 122.33 ± 4.53 respectively( P>0.05). In normal rabbit kidney parenchyma, the peak video intensity of normal rabbit kidney parenchyma of self-made lipid microbubbles and SonoVue were 72.00 ± 7.21 and 74. 65± 10.93 respectively(P>0.05). Conclusions The lipid microbubbles have satisfactory physical chemistry characteristics and echogenicity.

Objective To evaluate the value of contrast-enhanced ultrasound (CEUS) in the diagnosis of ischemie-type biliary lesion (ITBL) after liver transplantation. Methods Twenty-five liver transplantation recipients suspected with biliary complications were examined using CEUS. Percutaneous transhepatic cholangiography or endoscopic retrograde cholangiopancreatography confirmed the diagnosis. The enhancement patterns of the thickened hilum bile duct wall were observed. Results Enhancement patterns of bile duct wall could be divided into 3 sorts:① No-enhancement, six cases, showed no-enhancement all along. ②Hypo-enhancing level, four cases, presented hypo-enhancing at arterial phase and persistent hypo- or no-enhancing until late phase. ③Hyper-enhaneing level,fifteen cases,appeared as hyper- or iso-enhancing at arterial phase and persistent iso- or hypo-enhancing until late phase. The enhancement pattern of bile duct wall showed significant difference ( P = 0.00). Thirteen ITBL patients included 10 cases ( 76.9 % ) with no- or hypo-enhaneement, 3 patients (23.1 % ) with hyper-enhancement. However, all of 12 non-ITBL cases appeared hyper-enhancing. Conclusions CEUS provides a new and effective method to estimate the microcirculation of the bile duct wall. It may be help to early diagnosis of ITBL.

Objective To study and establish the automatic resident prescription system and automatic dispensing system in Center Drug Store based on NO.1 Military Project. Methods According to the Prescription Administrative Policy (2007, Chinese Ministry of Health), automatic system was designed to link each drug store of different departments to the center drug store. Results It is proved that the design is appropriate according to the application of this system in many military hospitals. Conclusion The system not only gives a good administration of drug, but also decreases the work load and increase work efficiency of center drug store.

0.05 ). 3DUS was superior to 2DUS in displaying the expanded tips (P 0.05 ) in the ablation modality. 3DUS enhanced the confidence level significantly in judging the position relationship between applicators and lesions in both modalities (both P