Objective To explore MRI features of spinal canal enterogenous cysts.Methods The MRI features and differential diagnosis of 5 patients with spinal canal enterogenous cysts proved by surgery and pathology were reviewed retrospectively in combination with literature review.Results Of 5 cases,the cysts localized at cervical spine in 2,lumbar spine in 1,lumbosacral spine in 1 and the end of coccyx between rectum and cuticulum in 1.4 cysts were located at subdura,including anterior to the spinal cord in 3 and posterior to the spinal cord in 1.1 cyst located the end of coccyx between rectum and cuticulum was uncommunicated with spinal canal and 1 case associated with diastematomyelia.The spinal cords were compressed and displaced.The cysts were iso or slightly hyperintensity compared to CSF on T1WI,and similar intensity to CSF on T2WI.The cysts had no markedly enhancement on contrast-enhanced MR scan.Conclusion MRI has important value in diagnosing spinal enterogenous cysts.

Objective To compare cardiac output continuously measured by transesophageal echocardiograph (TEE)with Flotrac /Vigileo system.Methods Thirty -six patients,aged 30 -60years,of American Society of Anesthesiologists physical status ⅠorⅡscheduled for laparoscopic hysterectomy (LH )were included in this study.The radial artery puncture on the left connecting the Flotrac /Vigileo system monitoring was established before anesthesia and ultrasonic probe was inserted into the esophagus after anesthesia induction.The depth of the probe was located at the middle esophagus with monitoring of transesophageal echocardiography(tee).At the same time the value of CO after anesthesia,before and after pneumoperitoneum were recorded and the application of SPSS 13.0 software package for statistical analysis was made.Monadic linear correlation and regression analysis were both used in measured CO. Results Each point,the determination of transesophageal echocardiography(tee)between the CO and the determination of the Flotrac /Vigileo CO,had high correlation(r =0.850,P =0.002).The CO at the time of T2 monitored by TEE group and Flotrac /Vigileo group were (3.3 ±0.2)L/min,(3.2 ±0.2)L/min,which were significantly lower than (5.6 ±0.3)L/min,(5.4 ±0.3)L/min(t =2.248,2.178,P =0.032,0.029).But there were no statistically significant differences at other time respectively(tT =0.102,0.199,0.201,0.124,0.198,PT =0.918,0.887,0.894, 0.908,0.898;tF =0.098,0.189,0.214,0.119,0.112,PF =0.953,0.874,0.898,0.913,0.932).Conclusion The correlation of CO monitored by transesophageal echocardiography(tee)and Flotrac /Vigileo was good,which can be safely and efficiently used in intraoperative monitoring of patients.

Acetylglucosaminidase ; urine ; Adult ; Biomarkers ; urine ; Clinical Enzyme Tests ; Female ; Humans ; Insecticides ; poisoning ; Kidney Diseases ; chemically induced ; urine ; Male ; Middle Aged ; Organophosphate Poisoning ; Poisoning ; urine

Adult ; Female ; Humans ; Insecticides ; poisoning ; Male ; Middle Aged ; Organophosphate Poisoning ; Poisoning ; blood ; Serum Albumin ; analysis ; Serum Globulins ; analysis

Acute Disease ; Adult ; Female ; Humans ; Lipoprotein(a) ; blood ; Male ; Middle Aged ; Organophosphate Poisoning ; Young Adult

A three-dimensional (3D) model of human anterior chamber is reconstructed to explore the effect of different corneal temperatures on the heat transfer in the chamber. Based on the optical coherence tomography imaging of the volunteers with normal anterior chamber, a 3D anterior chamber model was reconstructed by the method of UG parametric design. Numerical simulation of heat transfer and aqueous humor flow in the whole anterior chamber were analyzed by the finite volume methods at different corneal temperatures. The results showed that different corneal temperatures had obvious influence on the temperature distribution and the aqueous flow in the anterior chamber. The temperature distribution is linear and axial symmetrical around the pupillary axis. As the temperature difference increases, the symmetry becomes poorer. Aqueous floated along the warm side and sank along the cool side which forms a vortexing flow. Its velocity increased with the addition of temperature difference. Heat fluxes of cornea, lens and iris were mainly affected by the aqueous velocity. The higher the velocity, the bigger more absolute value of the above-mentioned heat fluxes became. It is practicable to perform the numerical simulation of anterior chamber by the optical coherence tomography imaging. The results are useful for studying the important effect of corneal temperature on the heat transfer and aqueous humor dynamics in the anterior chamber.
Anterior Chamber ; physiology ; Aqueous Humor ; physiology ; Cornea ; physiology ; Humans ; Iris ; Lens, Crystalline ; Models, Biological ; Temperature ; Tomography, Optical Coherence

Objective To investigate the efficacy of amplitude-integrated electroencephalographic (aEEG)in evaluating the maturation of cerebral function in preterm infants.Methods Ninety one neurologically normal and clinically stable preterm infants admitted to neonatal intensive care unit were studied prospectively by using aEEG.Background of aEEG activity patterns,presence of sleep-wake cycles,and the lower and higher border were analyzed.Results 112 aEEG were analyzed.The sleep-wake cycle and the continuity became more mature with PMA increased.The lower border were increased and the higher border were decreased with PMA increased(r =0.982,P ＜ 0.01 ; r =-0.964,P＜0.01).Conclusion In preterm infants,aEEG is a useful tool to evaluate the maturation of cerebral function.

Objective To investigate the influence of Xiyanping injections therapy on inflammation factors and lung function for old patients with acute exacerbation chronic obstructive pulmonary disease (AECOPD).Methods Ninety-two patients with AECOPD were randomly divided into the control group (n =46) and observation group(n =46).Patients in control group were given conventional treatment,in observation group were given XiYanPing injections for 2 weeks treatment on the basis of treatment of control group.The C-reactive protein(CRP),blood sedimentation rate (ESR),interleukin 10 (IL-10),1 s forced expiratory volume (FEV1),forced vital capacity (FVC),FEV1/FVC change and clinical effect of the two groups were recorded.Results There was no statistically significant difference in terms of CRP,ESR and IL-10 between the two groups before treatment (P ＞ 0.05).After treatment,CRP and ESR in control group were reduced from (35.6 ±9.8) mg/L and (56.2 ± 16.4) mm/h to (14.2 ± 8.1) mg/L and (22.4 ± 11.6) mm/1 h and the difference was significant (t =-14.515,-12.008;P ＜ 0.05),while in observation group decreased from (36.4 ± 8.2) mg/L,(54.6 ± 15.4) to (8.2 ± 6.2) mg/L,(16.8 ± 9.6) mm/h and the difference was significant (t =-18.468,-15.249;P ＜ 0.05).Meanwhile,the level of IL-10 in the two groups significantly increased and the observation group showed more.IL-10 in control group increased from (168.8 ± 62.4) ng/L to (212.4 ± 85.6) ng/L and the difference was significant(t =5.468,P ＜ 0.05),and in observation group increased from (172.8 ± 65.1) ng/L to (266.4 ± 92.6) ng/L and the difference was significant (t =6.368,P ＜ 0.05).The FEV1 and FVC were markedly increased after treatment and the observation group showed increase more.FEV1and FVC in control group were increased from (1.41 ±0.15) L and (2.62 ±0.88) L to (1.62 ± 0.18) L and (2.89 ± 0.92) L,and the differences were significant (t =2.186,2.415 ; P ＜ 0.05).While in observation group,FEV1 and FVC were increased from (1.42 ± 0.16) L and (2.59 ± 0.84) L to (1.84 ±0.21) L and (3.12 ± 0.94) L,and the differences were significant (t =4.366,4.585 ; P ＜ 0.05).Total efficacy of observation group was 91.3％ (42/46),obviously higher than that of control group(78.3％ (36/46) ; x2 =4.658 ;P ＜ 0.05).Conclusion Xiyanping injections can reduce the inflammatory response in patients with AECOPD,improve lung function and the effect of treatment.

Objective:To evaluate the effect of preoxidation on the bonding strength of titanium to porcelain.Method:12 titanium plates(25 mm?3 mm?0.5 mm) were pre-oxidated according to usual preoxidation procedure and 12 without preoxidation were used as the controls.The samples(6 in each group) were then bonded with bonding porcelain,opaque porcelain,dentin porcelain and glaze of Duceratin(Degussa) or Vita titankeramik(Vita) respectively.The bonding strength of Ti/porcelain was evaluated using three-point bending test according to ISO 9693 1990 standard. The interface of Ti/porcelain bonding was observed by SEM.Results:Bonding strength(MPa) of Ti/Duceratin preoxided group and the corresponding control was 41.910?2.778 and 33.097?5.297(P0.05),respectively.SEM observation showed inter-lock and tight bonding of Ti/porcelain in pre-oxidated interface,more cracks and gaps between Ti and porcelain in non-pre-oxidated interface.Conclusion:Pre-oxidation may improve bonding strength of Ti/Duceratin system, while has no significant effect on bonding strength of Ti/Vita titankeramik system.

Objective To establish a simple,rapid,accurate and practical method for determination of chloride in drinking water by chloride ion-selective electrode.Methods The chlorine ion-selective electrode was used as indicator electrode and type217saturated calomel electrode of the double salt bridge(the lower salt bridge was filled with a solution of0.1mol/L potassium nitrate)was used as reference electrode.The contents of chloride in water were calculated using the calibration curve method in the electrolyte containing0.1mol/L potassium nitrate.Results The linear range of the method was10 -5 -10 0 mol/L and the best lin ear range was10 -4 -10 -1 mol/L with r=0.9999and the slope=53.5?0.667.The detection limit,recovery rate and coefficient of variation(CV)were0.3545mg /L,94.2%-102.2%(mean98.1%)and2.8%respectively.The suitable pH for the determination of the method was2-10.In the solution containing3.545mg/L chloride,50times more BrO -3 ,NO -2 ,CH 3 COO - ,SO 42- ,F - ,CrO 42- and10times more CO 32- could not interfere with the detection,but Br - and I - were interfering factors.The re-sults obtained by the chlorine ion-selective electrode method and the national standard determination method showed no statistic differences.Conclusion The method was easy to operate,rapid,accurate and suitable for determination of chloride in water.