Intravoxel incoherent motion (IVIM) is an new technique based on traditional DWI,which can truly separate and extract water molecules diffusion and microcirculation perfusion pseudo-diffusion,and choose multi-b-value and bi-exponential model to obtain DWI.It can reflect the relationship between signal attenuation within the voxel and b values.Nowadays,IVIM DWI has been widely used in the studies of liver diseases.In this article,the recent progresses of MRIVIM in liver imaging were reviewed.

Objective To analyze the differences of clinical results between CAS and routine NCAS localization in TKA and to evaluate the safety and reliability of CAS in TKA in order to take advantages and avoid disadvantages of this new technology.Methods From October of 2004 to October of 2005,18 cases(20 joints)of TKA in Group Ⅰ which were perform utilizing computer assisted imaging guidance system(CAS)and there were 7 males and 11 females with an average age of 67 years.From October of 2003 to October of 2004,17 cases(22 joints)of TKA in Group Ⅱ which were performed with conventional method previously(NCAS)and there were 5 males and 12 females with an average age of 65 years(56-78).The differences between two groups in clinical results,mechanical axes,soft-tissues balance,coincidence,blood loss,and operating time were statistically analyzed.Results All cases were followed for an average of 10 months(3-12).The mechanical axes error was 2-3 degrees in CAS group and 3-6 degrees in NCAS group.Soft-tissues balance angle was within 2 degree in CAS group and 2-4 degrees in NCAS group.The distance variable was 2-4 mm in CAS group and 5-7 mm in NCAS group.The blood loss was 550-700 ml in CAS group and 700-900 ml in NCAS group.The surgery time was 75-100 min in CAS group and 45-60 min in NCAS group.There were statistically significant differences between two groups.There were no major complications such as fat embolism occurred in both groups.Conclusion Utilizing computer assisted imaging guidance in TKA can obtain reliable and sound clinical results with better mechanical axes and soft-tissues balance.It is a safe and reliable procedure in TKA.

Objective To investigate the streptomycin(SM)-resistance of Mycobacterium tuberculosis (MTB) in urine and to examine their relationships with the mutation of rspL gene. Methods 47 strains of MTB were isolated from the urine of patients with renal tuberculosis.The mutation of rspL gene were analyzed by PCR-SSCP with silver-staining,and the strains were tested for the sensitivity to streptomycin. Results All the 47 strains had positive expression of rspL gene of MTB,with 28 SM-resistant and 19 SM-sensitive.Among the 28 SM-resistence strains 19(68%) had rspL gene mutation by SSCP testing.The 19 strains of SM-sensitive had no mutation. Conclusions Detecting mutation of MTB rspL gene in urine by PCR-SSCP can rapidly and exactly identify the MTB's sensitivity to streptomycin,which is significantly important in clinical treatment of anti-tuberculosis.

Objective To explore the coastal state of hypertension among rural population and its relationship between the prevalence of metabolic syndrome(MS).Methods Lianyungang coastal rural residents 11089 people for primary hypertension epidemic learn research,age qualified for 45～75age,measurement height,body quality,waist,blood pressure,lipid and fasting blood glucose,respectively in accordance with international diabetes Union(IDF)and CDS of MS diagnosis standard calculation illness rate,and on gender,age,and hypertension level(Ⅰ,and Ⅱ,andⅢ,level),effects factors for correlation analysis.Results 11089 people(male 3985 people,female 7104 people)in the IDF standard MS total illness rate for 44.3％(male,and female MS illness rate respectively for 25.4％,and 54.9％),CDS standard MS total illness rate for 37％,two species diagnosis standard of meet rate for 79.9％;except blood glucose outside,female residents waist,TG,and HDL-C,indicators exception occurs rate obvious than male(x2=1399.198,554.801,652.110,all P＜0.01).Conclusion Lianyungang coastal MS prevalence in rural areas is higher than the general average in the middle-aged;female patients with hypertension and obesity are very high risk population of MS;hypertension pathogenesis is longer,higher prevalence of MS.

Objective To examine the relationship of marital quality,personalities,coping style in spouses.Methods Total 923 spouses were assessed with the marriage perception scale (MPS),Eysenck personality questionaire(EPQ) and simplified coping style questionnaire(SCSQ).Results The results revealed that psychoticism and neuroticism were both negatively correlated with marital quality(r=-0.24,-0.31,P＜ 0.01),but intraversion/extraversion and lie were both positively correlated with marital quality (r =0.24,0.14,P ＜ 0.01).And coping style was positively correlated with marital quality(r=0.33,P＜ 0.01).Significant partial mediation of coping style on the association between personality and marital quality were revealed,and the mediating effect was accounted for 8.8％ of the total effect.Conclusion Coping style is the mediator between personalities and marital quality.

Objective To explore the structure of Chinese personality based on natural language and to develop a Chinese personality vocabulary data bank.Methods Based on the sub-factors of Chinese personality scale(QZPS),Chinese personality assessment inventory 2(CPAI-2) and Chinese personality five factors inventory (CPFFI),a self-reported personality questionnaire with 116 items was developed.An exploratory factory analysis and parallel analysis were made to the data collected from 1455 Chinese participants.Results A Chinese Personality Seven Factors Inventory (CPSFI) was developed,which included seven factors with 52 items.51.63％ of the total variance of the seven factors was explained and the internal reliability coefficient was 0.800,while the internal reliability coefficients among the factors were between 0.663-0.912.The retest reliability coefficients of the factors were between 0.700-0.874 (P ＜ 0.01).Conclusions Outgoing and emotion are the core contents of the crossculture personalities.Most of the factors in QZPS,CPAI-2 and CPFFI can be found in the seven factors structure,of which the structure is clearer.

Objective To analyze the clinical features of 35 patients with myasthenia gravis (MG) associated with other autoimmune diseases (ADMG). Methods One hundred seventy MG patients were divided into 2 groups. One group included MG patients with autoimmune diseases ( n=35), and the other included MG patients without auto?immune diseases (NADMG, n=135). Clinical features such as gender, age of onset, types of MG, myasthenic crisis, thy?mus abnormalities, different therapies, ocular MG progressing to general MG, and relapse of MG within one year were compared between ADMG and NADMG. Results 85.7%ADMG patients were female which was higher compared with NADMG (P< 0.001); median age of onset was 40 years old (23~45 years old) in ADMG group which was younger than NADMG group. Ocular MG and thymic hyperplasia were more frequent in ADMG group than in NADMG group (45.7%vs. 24.4%, P=0.013;14.3%vs. 1.5%,P=0.001,respectively). Other clinical features such as myasthenic crisis, thymoma, different therapies, ocular MG progressing to general MG, and relapse of MG within one year were not signifi?cantly different between the two groups. In multivariate analysis, female (OR=4.76, 95% CI:1.64-13.77; P= 0.004), age of onset (OR=0.96, 95%CI:0.92-0.99;P=0.019), ocular MG (OR=3.10, 95%CI:1.30-7.41;P=0.011) and thy? mic hyperplasia(OR=16.26, 95%CI:2.22-119.11;P=0.006) were significantly different between the two groups. Con?clusions ADMG is more common in female patients with ocular MG and thymic hyperplasia.

Objective To transform the vocabulary based Chinese personality (VBCP) to a sentence based Chinese personality inventory.Methods Based on the dimension theory and mapping sentence,347 sentences were developed and quantified with equal weight.772 subjects participated in a pilot study and an exploratory factor analysis was conducted to the collected data.A trial version of the Chinese Personality Inventory with 7 factors was developed.With the trial version as the survey instrument,3190 subjects from 22 provinces and centrally administered municipalities in China participated in the survey,the exploratory factor analysis,confirmatory factor analysis,annova,t-test,correlation and cronbach test were utilized in this research.The Chinese seven factors personality inventory (CSPI) was developed,which included seven factors with 130 items.Results The 7 factors of Chinese personality inventory were emotion,innovation,persistency,virtue,extraversion,agreeableness and tradition.42.27％ of the total variance of the seven factors was explained.The internal reliability coefficient was Cronbach' s α =0.902(P＜0.001),while the internal reliability coefficients among the factors were between 0.794-0.947.The retest reliability coefficients of the factors were between 0.696-0.921 (P＜ 0.001).Significant positive correlations (r ranged from 0.151 to 0.548,P＜0.01)were found between 5 of the 7 factors of CSPI,but innovation and tradition.Significant positive correlations (r ranged from 0.193 to 0.715,P＜0.05,P＜0.01)were found between the 7 factors and CSPI.Significant correlations between CSPI and EPQ-RSC were found (P＜0.05).Confirmatory factor analysis showed that thc inventory was valid,and NFI and CFI were greater than 0.90.Conclusion CSPI met the measurement requirement in validity,reliability and explanation ability.

Objective To investigate the clinical effects differences of three-port and single-port invasively combination laparoscopic cholecystectomy and appendectomy in the treatment of acute appendicitis complicated with gallbladder stone. Methods 110 patients with acute appendicitis complicated with gallbladder stones from August 2012 to August 2015 were randomly divided into control group (55 patients) with three-port laparoscopic operation and observation group (55 patients) with single-port laparoscopic operation;and the clinical indexes for operation related, operation overall satisfaction score of Brown, the VAS score of depression and anxiety before and after operation and postoperative complications of both groups were compared. Results The incision length of observation group was significantly shorter than control group (P< 0.05). The operative time of observation group was significantly longer than control group (P < 0.05). The operation overall satisfaction of Brown of observation group was significantly higher than control group (P < 0.05). The VAS score of depression and anxiety after operation of observation group was significantly better than control group and before operation (P<0.05). There was no signiifcant difference in the incidence of postoperative complications between 2 groups (P < 0.05). Conclusion Compared with three-port laparoscopic operation, single-port invasively combination laparoscopic cholecystectomy and appendectomy in the treatment of acute appendicitis complicated with gallbladder stone can efifciently decrease the incision length, improve the aesthetic degree and postoperative negative emotions and not lead to increased risk of postoperative complications.

Objective: To explore the clinical response on cardiac resynchronization therapy (CRT) in patients of chronic heart failure (CHF) with different QRS wave morphology. Methods: A total of 52 CHF patients received CRT in our hospital and the Seventh People's Hospital of Zhengzhou City from 2010-03 to 2013-07 were retrospectively studied. The patients were divided into 3 groups: True-complete left bundle branch block (t-CLBBB) group,n=20, Classic LBBB (CLBBB) group,n=15 and IVCD group,n=17. The general clinical condition, the indexes of echocardiography at 6 months of follow-up study including left ventricular end diastolic diameter (LVEDD), left ventricular ejection fraction (LVEF), NYHA classiifcation and 6-MWT were examined and compared among different groups. Results: In general clinical condition, the ratio of non-ischemic heart disease patients in t-CLBBB group was higher than those in CLBBB group and IVCD group, allP<0.05. By 6 months follow-up study, LVEDD in t-CLBBB group (62.6 ± 8.9) mm was lower than those in CLBBB group (70.0 ± 8.9) mm and IVCD group (72.8 ± 8.0) mm, LVEF was higher in t-CLBBB group (38.5 ± 6.2) % than those in CLBBB group (31.7 ± 6.7) % and IVCD group (30.1 ± 6.7) %. NYHA classiifcation in t-CLBBB group (2.00 ± 0.45) grade was lower than those in CLBBB group (2.73 ± 0.80) grade and IVCD group (3.12 ± 0.78) grade . 6-MWT in t-CLBBB group (302.0 ± 57.9) m was longer than those in CLBBB group (257.3 ± 59.0) m and IVCD group (220.2 ± 57.9) m, allP<0.05. Conclusion: CRT is an effective method for treating CHD patients, different QRS morphology may have different response, the patients with t-CLBBB would make better response.