Objective: To evaluate the application value of CT enhancing scan based on bolus tracking technology in the upper abdomen. Methods:200 patients were examined by CT in the upper abdomen. Contrast agent was injected through the hand vein at 1.5 ml/kg, with pressure of 300 Pa, flow rate 2.5 ml/s. Before injection, we must complete the first scanning .Then , another 2 or 3 scans were done. Results:188 cases can show abdominal aorta, hepatic artery, splenic artery, hilar vessel branches, portal vein, inferior vena cava very well. Another two cases failed .The others were not ideal because of portal hypertension. Conclusion:CT enhancing scan based on bolus tracking technique in the upper abdomen can obtain good images to meet clinical needs.

Objective To investigate the relevant factors on the prognosis of sudden deafness. Method The clinical data of 133 patients (148 ears) with sudden deafness were analyzed retrospectively. Results Through systemic treatment, 25 cases got recovery, 18 cases were excellence and 39 cases were effective, the total effective rate was 61.7%(82/133). Univariate analysis showed that the factors related to the prognosis of sudden deafness were age, the time from onset to treatment, deafness classification,accompanied by vertigo or not and the duration of treatment. Patients with the age lower than 60, the earlier the time from onset to treatment, the lighter the deafness classification, not accompanied by vertigo and the longer duration of treatment got a better efficacy. Logistic regression analysis showed that the independent factors related to the prognosis of sudden deafness were the time from onset to treatment and deafness classification. Conclusion The etiology of sudden deafness is still unclear, the time from onset to treatment interval and the degree of hearing loss are the main factors affecting the prognosis of it, in clinic, it should be paid attention and took a early diagnosis and early treated so as to get good efficacy.

Objective To explore the effects of sports training on endothelin-1 ( ET-1 ) and endothelin-1 receptor (ETR) and its subtypes in the myocardium in rats. Methods After sports training, levels of endothelin-1 were measured using radioimmunoassay, and changes in ETAR and ETBR levels by radioligand binding assay. Results The endothelin-1 level in myocardial cells was significantly reduced ( P

Objective:To investigate the significance of 3D printing technology in the treatment of skull base tumor.Methods: A 45-year-old male patient who felt headache and discomfort had progressive loss of vision to blindness in the left eye. Using MR plain scan found that there was a skull base tumor, so the patient was examined by brain CTA and 3.0T MR to obtain medical digital imaging of CT and MR and DICOM data which were input into computer for establishing three-dimensional model, and then printed it.Results: 3D reconstruction model can clearly display the anatomical structure of skull base tumor, three-dimensional space and peripheral blood around skull base tumor. Under the guidance of this new technology, the tumor was completely removed and the surrounding normal brain tissue was preserved as much as possible. The whole operation time was greatly reduced at the same time.Conclusion: The treatment of 3D printing technology is applied in skull base tumors can clearly display the anatomical structure, distinguish adjacent vessels around tumor; when it avoids missing tumor, also can more effectively assist preoperative planning, enhance the security for complex skull base surgery, accelerate the operation speed, improve operation accuracy; it has great application prospect in the precise treatment of neurosurgery.

Objective:To discuss the value of low dose scanning technique of 16-slice spiral CT for the diagnosis of pulmonary diseases.Methods: A retrospective analysis was adopted to analyze 43 image documents were scanned by 16-slice spiral CT and to evaluate their qualities.Results:All of patients were examined in accordance with the requirements and all of image qualities were more than good. Although their background noise were increased, the image quality did not affect the display of anatomical structure. Therefore, it can satisfy the requirements for the diagnosis of pulmonary diseases.Conclusion:The pulmonary multi-slice spiral CT based on low-dose scanning technology can improve the detection rate of lesions, reduce radiation dose for patients, prolong the service life of the tube and reduce the maintenance cost, therefore it is worthy for further promotion.

OBJECTIVE:To discuss the effects of Kangshuling gel on wound treatment and infection prevention inⅡdegree burns. METHODS:60 patients with Ⅱ degree burns were randomized intro observation group and control group,with 30 cases in each group. Based on routine treatment (cleaning,disinfection,necrotic tissue removal,antibiotics use),observation group was given Kangshuling gel,and control group was treated with sulfadiazine. The average healing rate,healing time,surgical dressing exudate,inflammatory reaction around wound,the times of dressing change and inner layer gauze change,and wound infection rate were observed in 2 groups,and satisfaction survey was conducted in 2 groups. RESULTS:On 14th and 18th day after treat-ment,average rate of wound healing in observation group was significantly higher than in control group;the time of wound heal-ing was significantly shorter than control group,with statistical significance(P<0.05). Within 2 weeks after treatment,the number of gauze layer wetted by surgical dressing in observation group was significantly less than in control group,and case number of in-flammatory reaction around wound was significantly less than control,with statistical significance(P<0.05). The times of dressing change and inner layer gauze change in observation group was significantly less than in control group,and the rate of wound infec-tion was significantly less than control group,with statistical significance(P<0.05);the satisfaction of observation group was bet-ter than that of control group,with statistical significance(P<0.05). CONCLUSIONS:Kangshuling gel in the treatment of Ⅱ de-gree burns can effectively prevent and treat wound infection,reduce the rate of wound infection and the times of dressing change, shorten the time of wound healing and improve the rate of wound healing so,high satisfaction degree is obtained.

Objective To investigate the risk factors for gastrointestinal polyps.Methods A retrospective analysis was performed.The patients who undergone gastrointestinal endoscopy and diagnosis gastric polyps were selected who hospitaled in the Navy General Hospital from January 2012 to January 2014 and divided into cases group(patients with gastric polyps and colonic polyps) and control group (patients with gastric polyps).The information was recorded.Results The case of over 60 years of age distribution in case group was significantly higher than the control group.Single factor analysis showed that the indices including age,HP infection,smoking,drinking,high cholesterol and hypertension were significantly different from that of control group (x2 =11.538,9.350,4.190,5.103,8.992,4.038;P ＜ 0.05) after adjusting the interactions of the factors.Multi factor Logistic analysis showed that the risk of gastrointestinal polyps was significantly related with sex,age over 60 years old,HP infection,diabetes,smoking,drinking and hyperlipoidemia(P＜0.05),and the OR value from small to large were age,HP infection,alcohol drinking,hyperlipidemia,smoking,diabetes and gender.Conclusion The female gastric polyp patients who were over 60 years old,HP infection positive,diabetes,hyperlipidemia,smoking,drinking are more likely to suffer from intestinal polyps,and they were suggested to perform colonoscopy.Among them,women with HP positive infection and the age over 60 are high risk population.If they complicated with hyperlipidemia,they should had a screening for colorectal carcinoma in situ.

Objective To analyze the clinical characters of the different degrees nonalcoholic fatty liver (NAFLD) and the relationships with blood uric acid.Methods Two hundred and eighty-two cases body examinational and hospitalized patients were selected.According to whether complicated with NAFLD and liver steatosis degree,patients were divided into 4 Groups.Group A was control group that without NAFLD,Group B was mild NAFLD group,Group C was moderate NAFLD group and Group D was severe NAFLD group.Clinical data,blood lipids,blood uric acid and other biochemical indicators of four groups were compared.Results In 282 cases of patients,there were 78 cases (27.66％) without NAFLD patients,94 cases (33.33％) mild NAFLD,92 cases (32.62％) moderate NAFLD and 18 cases (6.38％) severe NAFLD.As the severity of fatty liver increased,body mass index (BMI) higher and higher ((24.51 ± 2.55),(27.06± 2.81),(28.37± 3.23),(30.71 ± 2.96) kg/m2),and the differences among four groups were statistically significant (F =35.976,P ＜0.05).Gglycerin trilaurate (TG),low density lipoprotein cholesterol (LDL-C) of D group were hihger than other groups ((3.04± 1.22) mmol/L vs.(1.73± 1.46),(2.59 ± 1.78),(2.81 ± 1.94) mmol/L,(2.99± 0.52) mmol/L vs.(2.28±0.78),(2.47±0.75),(2.41±0.74) mmol/L),high density lipoprotein cholesterol (HDL-C) was lower compared with group A,B,C (1.00± 0.23) mmol/L vs.(1.15± 0.24),(1.05± 0.21),(1.00 ±0.21) mmol/L),the differences were statistically significant(F=6.818,4.597,6.414;P＜0.05).In 4 groups the blood uric acid(UA) of groups B,C,D was higher than group A,group D was higher than group B,C,and the differences were statistically significant((316.13±71.86),(356.98±83.00),(355.37±81.01),(409.67 ±50.90) μmol/L;F=8.797;P＜0.05).Conclnsion Obese patients are more susceptible to NAFLD,and NAFLD with a certain degree of lipid and uric acid metabolism,and the severity of NAFLD has a positive correlations with lipids and serum uric acid levels.It is particularly obvious in patients with severe NAFLD,which prompting that blood uric acid level can be used as an independent risk factor in the pathogenesis of NAFLD,and as an auxiliary judge for NAFLD severity index.

Objective To investigate the reason of fracture internal fixation of locking plates and conventional plate in the treatment of femoral fractures.Methods A total of 198 patients with femoral fracture taken plate fixation were selected as our subjects.Of which,the locking plate were used in 87 cases served as control group and 111 cases had traditional plate fixation served as study group.Fracture fixation rate in patients were follow-up and the reasons for broken were analyzed.Results Fracture fixation occurred 5 cases (4.5％,5/111) in the locking plate,and 3 cases (3.4％,3/87) in traditional plate,and the difference was not significant (x2 =0.053,P =0.987).Fracture reason included plate fracture (4 cases),fracture of screws (2 cases) and plate fracture complicated with breakage of screw (2 cases).Iatrogenic factors lead fracture fixation was 30.0％ (3/10),significantly higher in patients with rehabilitation exercises errors (6.9％,2/29; x2 =3.851 ; P =0.046).Both iatrogenic factors and rehabilitation exercises errors caused fracture fixation rate was 100％.Conclusion Iatrogenic factors combined rehabilitation exercises error was the main reasons in fracture fixation.We should properly choose fixation methods and correctly guide the postoperative functional exercise for patients.

Objective To investigate the influence of intra-articular injection of hyaluronic acid at early stage on articular cartilage cells apoptosis in elderly patients with articular injury.Methods A total of 89 elderly patients with articular injury from Jan.2013 to Oct.2014 were randomly divided into observation group and control group.In control group,40 cases were treated with conventional surgery and anti-inflammatory therapy.In observation group,49 cases were treated intraarticular injection of hyaluronic acid added to conventional therapy.The apoptosis rate of articular cartilage cells,cell cycle and proliferation index were compared between the two groups.Results The apoptosis rate of articular cartilage cells was lower in observation group than in control group [(4.08±0.74)％ vs.(6.41±0.54)％,t=16.403,P＜0.001].The ratio of G0/Giin articular cartilage cells was lower in observation group than in control group[(83.5 ± 3.5)％ vs.(91.7± 4.3)％,t10.275,P＜0.001].The ratios of S and G2/M and the proliferation index in articular cartilage cells were lower in control group than in observation group[(3.5 ± 0.3)％ vs.(8.2± 2.4)％,(4.7±0.6)％ vs.(8.5±1.8)％ and (9.1±1.1)％ vs.(16.7±1.9)％,t=12.293,12.731 and 22.198,respectively,all P＜0.001].Conclusions Intra articular injection of hyaluronic acid at early stage decreases the apoptosis rate of articular cartilage cells,helps articular cartilage cells turnover and improves the recovery of articular injury in elderly patients.