This paper discusses image segmentation of liver by MITK and maximum entropy in VC++ 6.0.MITK supports an extensive set of image processing and 3D visualization algorithms,which is a very convenient tool.After filtered by Wavelet transform,good segmentation results could be obtained by maximum entropy method and MITK interactive segmentation.

Objective To study the relationship between infection and hypokalemic paralysis and its clinical features.Methods A systemic analysis was made on the infection courses,clinical manifestations, serum levels of potassium and creatine phosphokinase,the results of electrophysiological and virological examinations in present 34 patients and 115 cases reported in literature with hypokalemic paralysis.Results There were differences in the clinical manifestations and denominations among the present and reported cases. No definite evidences for virus infections were found among patients who were characterized by acute flaccid paralysis accompanied with hypokalemia in the infection curses. The prognosis of the disorder was better after the patients were given potassium, and most of them didn't recur.Conclusion No enough evidences showed that this disorder was an independent disease.It should be named as "concomitant infectious hypokalemic paralysis" appropriately. It was probably a syndrome accompanied by infection on the base of hereditary susceptibility.

Objective: The purpose of this study was to investigate the relationship among the maternal body composition,gestation weight gain and fetal birth weight.Methods: Pregnant women with a singleton gestation and without medical diseases before pregnancy were enrolled.Anthropometry measurements and bioelectrical impedance measurements were performed during 24-25 weeks(the second trimester) and 37-38 weeks(the third trimester).Results: Gestation weight gain was correlated significantly with gains of intracellular fluid,extracellular fluid,total body water,body fat,fat free mass,body cell mass,mother's basal metabolic rate and arm circumference seperately,which were correlated with the fetal birth weight(P0.05).Conclusion: Maternal weight gains during pregnancy were affected by their body composition.Fat free mass is considered an important predictor of fetal birth weight.

Objective To observe the effects of telmisartan and valsartan on insulin resistance in obese hypertensive patients. Methods Sixty-eight patients with essential hypertension and body mass index ( BMI) ≥25 kg · ( m2 ) -1 were randomly divided into the telmisartan group (33 cases) and valsartan group (35 cases). Blood pressure, fasting serum glucose, fasting insulin (Fins) and insulin resistance (HOMA-IR) were measured before and after 16 weeks treatment. Results Compared with basal levels, SBP and DBP were significantly decreased in both group ( P<0. 01). Fins and HOMA-IR were significantly decreased in telmisartan group [(12. 9±2. 9) mU·L-1 vs. (10. 9±2. 2) mU·L-1 (P<0. 01); (3. 1±0. 7) vs. (2. 7±0. 6) (P<0. 01), respectively], while no such changes were found in valsartan group [(12. 9 ±3. 0) mU·L-1 vs. (12. 7±2. 7) mU·L-1 ( P > 0. 05);( 3. 0 ± 0. 7) vs. (3. 0 ± 0. 7) ( P > 0. 05), respectively]. Conclusion In obese hypertensive patients, telmisartan and valsartan exert similar antihypertensive effect, but telmisartan may have a benefit in insulin resistance in comparison to valsartan.

Objective To study the protein components of the secretion of the proximal trunk of transected peripheral nerve and the effect of the secretion on the growth of motor neuron.Methods After the sciatic nerves of rats were transected, the proximal trunk secretion collecting compartment (P-SCC), distal trunk SCC (D-SCC) and (proximal) plus distal trunk SCC (PD-SCC) were set up. The protein components of the solution in the 3 types SCC were analyzed by two-dimensional polyacrylamide gel electrophoresis (2D-PAGE) and mass spectrum. And the effect of 3 kinds solution on the growth of motor neuron was tested by the motor neuron culture respectively. (Results) All the P-SCC, D-SCC and PD-SCC were filled with light yellow, clear fluids. The protein (concentration) was (5.45?1.2)mg/ml,(3.87?0.7)mg/ml and (5.68?1.5)mg/ml in the solution of PD-SCC, P-SCC and D-SCC (respectively). The protein patterns of the 3 solution were similar, and the detected (protein) spots were 1098?34,985?47 and 1021?36 spots in the solution of P+D-SCC, P-SCC and D-SCC (respectively). Most of the protein spots (distributed) in the rangs of MV 25-90KD and PH 4-8. The results of motor neuron culture demonstrate that the number of survival cells, cell area, neurite length and OD value of experimental groups(including mix group, (proximal) group and distal group) are generally higher than control group. But there is no obvious difference between the three experimental groups. Conclusions (1)The proximal trunk of transected sciatic nerve had the similar secretive ability as the distal nerve trunk.(2)(Protein) image of the 3 kinds of SCC solution showed that proteins from the three SCC solution were homologous. (3)All the 3 kinds of SCC solution could promote the growth and activity of motor neuron, and there was no difference in function between P-SCC and D-SCC solution.

Objective To explore the key antecedent variables of team effectiveness and their correlation.Methods The stratified cluster random sampling was conducted to recruit 133 college students from a university in Fujian Province.Results (1) Communication and back up behaviors were positive predictors of team grade (β =0.645,0.315,P＜0.01)and satisfaction degree of team members (β=0.305,0.309,P＜0.01).Free riding had negative influence to the satisfaction of team members (β=-0.392,P＜0.01).(2)Accuracy of tusk cognition and tusk concern were positively related to team performance (β=0.513,0.470,P＜0.01),and accuracy of tusk cognition and team efficacy were predictors of satisfaction of team members (β=0.502,0.373,P＜0.01).(3)Team process variables mediated the relationship between team mentalmodel and tear effectiveness.Conclusion Antecedent variables include team process variables and team mental model.Between team mental model and team effectiveness,the team process variables play a mediating role.

By stratified random sampling method, 10 000 residents were investigated with the questionnaire in Fangzhuang community of Beijing, 9497 valid questionnaires were collected with a return rate of 94. 97%. The results showed that two main purposes for patients to use the community health services were to seek consultation (29. 8% ) and to get prescription (28. 2% ). The three main reasons for residents to choose community health services were the convenience, less medical expenses and more clear explanation from doctors, followed by the personal trust in the doctors.

Objective To analyze the correlation between the resistance of Acinetobacter baumannii and the utilization of antimicrobial agents in the hospitalized patients of Beijng Chuiyangliu Hospital,and provide the basis for clinical rational use antimicrobial agents.Methods A retrospective analysis was conducted for the drug resistance rate and specimen source of the 2 194 strains of Acinetobacter baumannii from 2010 to 2014 in the hospital and DDDs/DUI of antimicrobial agents was analyzed by Pearson correlation.Results The resistance rate of Acinetobacter baumannii was positively correlated with the DDDs and DUI of imipenem/cilastatin(r=0.991,0.994,all P<0.01), and was positively correlated with the DDDs of cefepime(r=0.934,P=0.020).The resistance rate of Acinetobacter baumannii to amikacin was positively correlated with the DDDs of etimicin(r=0.931,P=0.022).The resistance rate of Acinetobacter baumannii was negatively correlated with the DUI of levofloxacin(r =-0.986,P =0.002). Conclusion The resistance rate of Acinetobacter baumannii was high and there was correlation between the drug resistance and the utilization of some antimicrobial agents.

The method for ultrasonic detection of air bubble in race track is studied in this paper. A automatic detection system is established, which mainly consists of the ultrasound emitter and receiver, high-speed A/D acquisition card and PC.

Objective To investigate the effect of long-term proton pump inhibitor on osteoporosis in elderly patients.Methods A total of 150 patients with peptic ulcer treated in our hospital from January 2011 to January 2015 were selected as the observation group.150 healthy subjects were selected as the control group.The age,height,body weight and PPI time of the two groups were recorded.The changes of bone mineral density before and after treatment were measured by bone mineral density analyzer,ineluding lumbar L1-4,radial density and ulna density.The changes of bone mineral density were observed and recorded in the observation group before treatment,six months,1 year and 2 years after treatment.Results After treatment,the levels of gastrin were significantly increased in the observation group,and the serum calcium concentration and bone mineral density were significantly decreased (P＜0.05).The density of lumbar vertebrae,radius and ulna was significantly lower in observation group than those of control group (P＜0.05).With the prolongation of PPIs,lumbar vertebrae,radius and ulna density in observation group showed a decreasing trend.Conclusion Long-term application of proton pump inhibitors in elderly patients can cause bone loss.