Objective To detect the specific serum protein of colorectal cancer by surface-enhanced laser desorption/ionization tune of flight mass spectrometry(SELDI-TOF-MS)and provide the foundation for early detection of colorectal cancer.Methods The levels of serum protein of 36 patients with colorectal cancer and 36 healthy control subjects were detected by weak cation exchanger protein chip(WCX2)chip and SELDI-TOF-MS.Results At the M/Z value range from 2 000 Da to 30 000 Da,82 protein peaks were found.The level of 3 604.240 Da protein was significantly higher in patients with colorectal cancer than in healthy control subjects,while the level of 12 861.368 Da protein was significantly higher in healthy control subjects than in patients with colorectal cancer(P＜0.05).The specificity,sensitivity,and positive predictive value of the detection of colorectal cancer using these 2 protien were 86.11%,77.78%,and 87.5%.respectively.Conclusion The 3 604.240 Da and 12 861.368 Da proteins can be used as the serum marker for early detection of colorectal cancer.

Objective To analyze the pathogenic distribution and drug resistance of 7 534 clinical samples ,so as to provide a ba-sis for rational use of antimicrobial drugs in clinical .Methods The pathogens isolated from 7 534 clinical samples were counted and their drug resistance rates were analyzed by retrospective survey method .Results The positive rates of Gram positive coccus ,Gram negative bacillus and fungi were 14 .02% ,52 .98% ,and 7 .57% respectively .The drug resistance rates of pathogens were increas-ing .Conclusion Improving the accuracy of detection and standardizing the application of antibacterials would be helpful to reduce the generation of bacterial drug resistance .

Objective To examine the usefulness of shock index (Sl) and adjusted shock index (corrected to temperature) (ASI) in predicting prognosis of patients with return of spontaneous circulation after cardiac arrest.Methods A prospective study,which data such as vital signs of the cases were collected by the Utstein template,was conducted in 111 of cases with return of spontaneous circulation after cardiac arrest to assess the value of SI and ASI for predicting their prognoses.Results There was no evidence to show difference between the cases with survival to hospital discharge and the ones who died about systolic blood pressure and heart rate (P ＞0.05).SI and ASI [(1.109 ±0.428) and (1.082 ±0.410)] of the group of death were higher significantly than the ones [(0.899 ± 0.303) and (0.844 ± 0.265)] of the group with survival to hospital discharge,P ＜ 0.05.The risk of death was elevated in the group with ASI ＞ 1.1,which odds ratio (5.4) higher than the ones of systolic blood prcssure ＜90 mm Hg (1.6)and ventricular rat ＞ 100 beat/min (3.1) significantly.The odds ratio of death with AS ＞ 1 was 2.8.Conclusions Shock index and adjusted shock index are easy to derive and conducive to predict effectively diseases prognosis such as survival to hospital discharge or death of patients with ROSC.

ObjectiveTo investigate the value of urinary BNP for diagnosis of chronic heart failure (CHF). MethodsThe levels of Urinary BNP and plasma BNP were measured by microparticle enzyme immunoassay (MEIA) in 83 patients with CHF and 30 control subjects. The heart function was classified according totheNYHAcriteria. Leftventricularejectionfractions(LVEF)weremeasuredby echocardiology. ResultsThe level of urinary BNP in patients with CHF was[90. 0(38. 3 -209. 5 )]ng/L and the level of plasma BNP was[680. 0 ( 289. 7 - 1543.5)]ng/L, both of them were much higher than those in healthy subjects,[17. 0 ( 13.0 - 33. 0)]ng/L and[84. 5 ( 56. 0 - 158.0 )]ng/L, respectively (P＜0. 01 ). The concentrations of urinary BNP increased gradually with more severe symptoms ( NYHA cl ass Ⅰ -ⅣV ). The level of urinary BNP was positively correlated with NYHA class ( r = 0. 742, P ＜ 0. 01 )and the level of plasma BNP (r =0. 842,P ＜0. 01 ) while negatively related with LVEF (r = -0. 801 ,P ＜0. 01 ). The level of urinary BNP in patients with LVEF ＜ 40％ was[143.0 ( 85. 0 - 258.0)]ng/L , which was much higher than that in patients with LVEF≥40％ ,[31.5( 17.3 -38. 8)]ng/L, (P ＜0. 01 ). At a decision threshold of 36. 5 ng/L, the urine BNP assay demonstrated a clinical sensitivity and specificity of 84％ and 80％ ,respectively. In this study,the area under the curve(AUC) was 0. 905. ConclusionUrinary BNP is a new candidate marker for the diagnosis of CHF,it provides a similar accuracy with plasma BNP.

OBJECTIVE:To provide reference for promoting clinical rational use of Aidi injection. METHODS:Some inpa-tient records that used Aidi injection in our hospital from Jan. to Jun. 2015 were randomly selected and statistically reviewed by us-ing Excel(2011 edition) in aspects of gender,age,tumor location,usage and dosage,solvents usage,treatment course,adverse reactions,etc. RESULTS:In the 125 patients who used Aidi injection,male was more than female,with average age of 58.4 years;the tumor location of 66 patients (52.80%) was consistent with the indications in instructions;treatment course of 30 pa-tients(24.00%)was consistent with the instructions;all solvent types were consistent with the instruction recommendation,while only 6 patients(4.80%)showed consistence in solvent usage and instructions;122 patients(97.60%)showed consistence in single dosage and instructions;7 patients had adverse reactions,mainly rash and gastrointestinal reactions. CONCLUSIONS:The use of Aidi injection in our hospital shows off-label drug use,non-standardized treatment course and inappropriate solvent usage. Physi-cians,clinical pharmacists and relevant departments should further strengthen the rational use,medical advice comments,supervi-sion and management of Aidi injection in the hospital to promote the rational drug use.

Objective To propose a stream-media technology based on the new transmission technology. Methods Firstly,we explored the advantages and disadvantages of exiting PACS image in LAN (Local Area Network) and WAN (Wide Area Network) and then expounded distance diagnosis related to HIS and PACS,VPN technology,wireless network applications,more points consultation applied technology. At last,we made an analysis of the characteristics of the stream-media transmission technology. Results The characteristics of low bandwidth occupied,high security,and high scalability of stream-media transmission technology fit the needs of PACS development. Conclusion Application of streammedia technology transferred in PACS image provides a new economical and practical technical solution to break through limitation of network bandwidth in medical imaging integrated information,and to thoroughly make use of medical resource.

Objective To investigate the dynamic expression of SOCS-3, TNF-α in live and spleen of mice induced by AOPP, and to discuss the mechanism of MODS induced by AOPP, so that to give some intervention method over MODS in the future. Method Thirty-six adult BALB/c mice were divided into 3 groups randomly: AOPP group (n=12). Water normal group (n=12) and normal group (n=12). After post poison 2 hours, 6 hours, 12 hours and 24 hours,the fiver and the spleen tissue were taken out. The expression of SOCS-3 and TNF-α were detected by RT-PCR. And data were analyzed with ANOVA. Results After AOPP of 2,6,12,24 hours, the mRNA expression of SOCS-3 increased obviously in the liver and spleen compared with the normal group (P<0.05), it reached peak at the 24th hour in liver,and reached peak at the 12th hour in spleen, then descended at 24th hour (P<0.05). The mRNA expression of TNF-α increased obviously in the liver and spleen than normal group (P<0.05), and reached peak at the 12th hour,then descended at 24th hour (P<0.05), the electro-phoresis image of RNA was 5 s 15 s and 30 s,RT-PCR amplification of β-actin showed,the expression of SOCS-3, reached peak at the 24th hour in liver and it reached peak at the 12th hour in spleen, then descended at 24th hour (P<0.05), TNF-α reached peak at 12th hour in the liver and spleen, then descended at 24th hour. By statistic analysis, positive correlation was indicated among SOCS-3 and TNF-α mRNA expression in liver (y=0.089+0.758x, r=0.939, F=252. 168, P<0.01) positive correlation was indicated among socs-3 and TNF-α mRNA expression in spleen (y=0.057+0.361x,r=0.953,F=336.122, P<0.01). Conclusions At different point of time after Aopp,the mRNA expression of socs-3 and TNF-α showe the same trend in liver and spleen,the levels of SOCS-3, TNF-α all increase significenfly.

Objective To evaluate the MRA by measuring the diameter of the stenosis artery and the contralateral normal vertebral artery with unilateral stenosis. Methods Seventeen-six patients were divided into normal group and vertebral arterial type of cervical spondylosis group.Among 26 vertebral arterial type of cervical spondylosis cases,13 cases appeared as vertebral arterial type with unilateral stenosis of ≤1.6 mm in diameter .Statistics assessment of MRA in stenosis and contralateral artery was engaged. Results The unilateral artery stenosis diameter measured

OBJECTIVETo investigate the capability of semi-quantitative and quantitative parameters of dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) to predict the response to concurrent chemoradiotherapy( CCRT) in patients with non-small cell lung cancer (NSCLC).

METHODSA total of 24 patients with stage III or IIIB NSCLC, who underwent 3.0T DCE-MRI before CCRT, were enrolled in this study. Semi-quantitative and quantitative parameters were calculated by Funtool and Omnikinetics software. The relationship between these obtained parameters and tumor response was evaluated by Spearmen' s correlation analysis. The patients were classified into two groups according to the tumor regression rate after treatment, as response group (group A) and non-response group ( group B). Mann-Whitney U test was used to compare the parameters of responders and non-responders. The value of the parameters on predicting response was calculated by receiver operating characteristic curve (ROC).

RESULTSThe tumor regression rate after treatment was negatively correlated with time to peak (TTP) and the extravascular-extracellular volume fraction (Ve), and was positively correlated with signal enhancement ratio (SERmax) and volume transfer constant (Ktrans) (P < 0.05 for all). Statistical significant differences were found between group A and group B both in semi-quantitative and quantitative parameters (P < 0.05). Group A had a lower TTP value [(34.66 ± 16.37) s vs. (44.09 ± 17.41) s] and Ve value [(0.19 ± 0.03) vs. (0.25 ± 0.05)] than group B, whereas group A had a higher SERmax [(166.50 ± 44.95)% vs. (113.57 ± 46.62)%] and Ktrans [(0.41 ± 0.17) min(-1) vs. (0.28 ± 0.12) min(-1)] than group B (P < 0.05 for all). The ROC analysis indicated that when setting the threshold of Ve on ≤ 0.21 for predicting response, the specificity, sensitivity and accuracy were 85.7%, 80.0% and 83.3%, respectively, with an area under curve of 0.875 (P < 0.001).

CONCLUSIONSBoth the semi-quantitative and quantitative DCE-MRI parameters are helpful for predicting the response after CCRT of NSCLC. Quantitative parameters seem to be more meaningful than semi-quantitative parameters.

Carcinoma, Non-Small-Cell Lung ; pathology ; therapy ; Chemoradiotherapy ; methods ; Contrast Media ; Humans ; Lung Neoplasms ; pathology ; therapy ; Magnetic Resonance Imaging ; methods ; ROC Curve ; Remission Induction ; Sensitivity and Specificity ; Time Factors

Objective To analyze and summarize the imaging features of hepatic epithelioid hemangioendothelioma (EHE).Methods The retrospective and descriptive study was conducted.The clinicopathological data of 9 patients with EHE who were admitted to the Cancer Hospital of Chinese Academy of Medical Sciences between June 2012 and June 2016 were collected.Patients underwent computed tomography (CT) and magnetic resonance imaging (MRI) examinations.Number,size,location,shape,density or signal and enhancement method of lesions,with or without lesions fusion and relationship between lesions and vessels were analyzed by 2 imaging doctors.Lesions in left lobe of liver,right lobe of liver and caudate lobe of liver were respectively counted.Real number was a standard as less than 5 lesions and more than or equal to 5 lesions was represented as ≥ 5.Observation indicators:(1) overall imaging features of EHE;(2) MRI findings of EHE;(3) CT findings of EHE;(4) treatment and pathological features of EHE and results of follow-up.Patients received the corresponding treatment after imaging examinations.Follow-up using outpatient imaging examinations was performed to detect tumor recurrence and stable condition of patients up to December 2016.Results (1) Overall imaging features of EHE:of 9 patients with EHE,6 received plain and enhanced scans of MRI,3 received plain and enhanced scans of CT (1 combined with MRI),1 received enhanced scan of CT.Lesions in right lobe of liver were more than that in left lobe of liver,and there were fewest lesions in caudate lobe of liver.Lesions were round or similar-round shape,with a maximum diameter of 2.5-6.1 cm and an average diameter of 3.6 cm.Four patients had total 2-5 lesions and less than 5 lesions in each lobe of liver,without lesions fusion,including 1 with halo sign and capsule retraction sign and 1 with halo sign.Of other 5 patients,2 had more than or equal to 5 lesions in each lobe of liver and 3 had more than or equal to 5 lesions in 2 lobes of liver;4 had halo sign,lollipop sign,capsule retraction sign and a tendency of lesions fusion,1 had halo sign and capsule retraction sign.The halo sign,lollipop sign,capsule retraction sign and a tendency of lesions fusion were 7/9,4/9,6/9 and 4/9 in 9 patients,respectively.(2) MRI findings of EHE:6 patients received plain and enhanced scans of MRI.① Four patients had clearhalo sign on T2 weighted imaging (T2WI),in portal vein phase and hepatobiliary phase.Three patients had slightly central hyperintensity and thick ring of slightly peripheral hyperintensity on T2WI.There were slightly central hyperintensity and thin ring of slightly peripheral hypointensity in 1 patient,and the halo sign was seen by enhanced scan.There were central hyperintensity and peripheral hypointensity in 2 patients,and the halo signs were clearly seen in hepatobiliary phase.Some patients were combined with multiple manifestations.② There were no obvious halo sign on T2WI,annular enhancement in arterial phase by enhanced scan,no obvious halo sign in portal vein phase and hepatobiliary phase in 2 patients.There were hypointensity on T1WI and isointensity-hyperintensity on DWI in 6 patients.(3) CT findings of EHE:plain scan of CT in 4 patients showed slightly hypodense shadow,without calcification.Enhanced scan of CT in 3 patients showed that obvious halo-like enhancement was seen in portal vein phase and halo rings were less obvious than that by MRI examination.(4) Treatment and pathological features of EHE and results of follow-up:of 9 patients with EHE,4 underwent surgical resection based on lesions ≤5 and surgical specimens were detected by pathological examination,5 underwent interventional treatment and pathologic examination with biopsy.Gross specimen examination showed that lesions were solid and stiff,with greyish white section plane and infiltrative margin.Tumor cells consisted of epithelioid cells under the microscopy,without atypia and with rare mitotic figures,and vacuoles were seen in cytoplasm.Immunohistochemistry showed CD31 and CD34 were positive.Nine patients were followed up for 6-54 months.During the follow-up,4 patients with surgery had no recurrence and 5 patients with interventional therapy remained stable condition.Conclusions Imaging manifestations of hepatic EHE are the more typical when lesions of EHE became more.Hepatic EHE has a tendency of lesion fusion,halo sign,capsule retraction sign and lollipop sign.Imaging manifestations on T2WI with fat suppression,in portal vein phase and hepatobiliary phase are helpful to improve the diagnosis of hepatic EHE.