Objective To analyze the IgG variances between workmen and workwomen in x-ray room,and to provide reference for the assessment of staff in the department of radiology.Methods The staff in the department of radiology who recieved health examination from Janurary 2012 to Janurary 2016 were divided into the male group and the female group.The health examination data of 75 staff in each group were slected and the basic immunization level of the two groups were tested.And then compared the the IgG variances between the two groups.The analysis were conducted by two means of grouping,namely the working age of staff (less than 10 years,between 10 and 20 years, and over 20 years)and the age of staff (aged 21 to 30,aged 31 to 50,aged 51 to 78).Results The level of IgG in the female group were higher than that in the male group when their working age were less than 10 years,and the difference was significant (P <0.05).Both in the male group and the female group,the level of IgG in staff aged 31 to 50 were lower than the others,and the difference was significant (P <0.05).Conclusion The level of IgG in female staff were higher than that in the male staff in different age stages,and it increased with the increase of working age.To analyze the IgG variances of staff the in x-ray room could provide reference for assessment of physiclal status.

Objective To investigate the values of echocardiogram for evaluating the changes of left ventricular structure and cardiovascular function of the acute mountain sickness (AMS) patient before and after returning the plain.Methods A total of 33 light AMS patients returning to the plain in time underwent echocardiogram examinations on some cardiovascular indexes before and after returning the plain,including stroke volume (SV),cardiac output (CO),left atrial volume index (LAVI),left ventricular end-diastolic volume (LVEDV),early diastolic mitral flow velocity (E),late diastolic mitral flow velocity (A) and so on.Results The values of heart rate (HR),systolic blood pressure (SBP),diastolic blood pressure (DBP),CO,A and LAVI after going to the plateau were all significantly higher than those before going to the plateau (P＜0.05),while the values of SV,E,E/A and LVEDV were obviously lower (P＜0.05).The values of HR,SBP,DBP,CO,A,E and E/A recovered respectively 1 month after going to the plateau when compared with those before going to the plateau (P＜0.05),while did not restore to the ones before going to the plateau (P＜0.05),and the values of LVEDV,LAVI and SV reached the level before going to the plateau (P＜0.05).The values of LVEDV,SV,SBP,LAVI and E 1 week after returning to the plain came to the level before going to the plateau (P＜0.05),and the values of CO,HR,DBP and A were significantly higher (P＜0.05) while the value of E/A was statistically lower (P＜0.05).Conclusion Echocardiogram can be used to evaluate the left ventricular structure and cardiovascular function of the AMS patient,especially for those light AMS patients in acclimatization period or before and after returning to the plain.

Objective:To explore the application of scenario simulation and rapid film reading training in the standardization of cervical vertebra DR examination in radiology department.Methods:Using the method of scene simulation in the examination room to take DR films of cervical vertebra, two senior technicians in charge evaluated and guided the deficiencies of junior technicians from the aspects of patient check, exposure conditions, body position placement, film printing, inspection safety and radiation protection. Every morning, DR images of cervical vertebra were randomly selected and read quickly, and the junior technicians should quickly browse the images within one minute and make quality control evaluation. Then the senior technician in charge pointed out the shortcomings of the evaluation and related improvement methods. After that, the technical specification manual of cervical vertebra DR was compiled based on the deficiencies and problems found by each technician, and 200 patients aged 18-55 years, without abnormal movement and no internal fixation before and after the establishment of standardization were randomly selected in group A (before standardization) and group B (after standardization). The image quality and repetition projection rate of group A and group B before and after the standardization were compared. SPSS 25.0 was used to analyze the data.Results:The image quality score of group B (8.83±0.33) was higher than that of group A (8.45±0.30), and the repetition projection rate of group B (2%) was lower than that of group A (9%), with statistical significance ( P<0.05). Conclusion:Through the training mode of rapid film reading and scenario simulation, the standardization of cervical vertebra DR examination technology suitable for the situation of the department has been established, which effectively solves the problem of abstraction in the technical teaching of radiology department. The standardization establishment plays an important role in standardized training, for which, the technicians can quickly grasp the work process of the department and the corresponding examination technology during participating in the standardization establishment and training process.

Objective To investigate the clinical value of serum insulin-like growth factor-1 (IGF-1),insulin-like growth factor-binding protein-3 (IGFBP-3) and mean height standard deviation score(HtSDS) in recombinant human growth hormone (rhGH)-treated small for gestational age (SGA) children.Methods 32 cases of SGA failed of catch-up growth were subcutaneously injected with rhGH every night before bed at a dose of 0.15-0.20u· kg-1 · d-1.And the variation of serum IGF-1,IGFBP-3,HtSDS,body height and growth velocity (GV) were monitored at 3,6,9 and 12 months of the treatment and compared.Results The GV (cm/years) increased to (12.4 ± 3.2),(11.0 ± 2.3),(10.1 ± 3.5),(9.4 ± 1.8) versus (4.1 ± 0.5) before treatment,suggesting a significant catch-up growth after treatment (F =51.35,P ＜ 0.01).Accordingly,HtSDS increased to (-2.55 ± 0.73),(-2.39 ± 0.65),(-2.21 ± 0.58),(-2.09 ± 0.94) versus (-2.81 ± 0.64),suggesting that height gaps were reduced compared to the normal children of the same age and sex after rhGH treatment (F =4.99,P ＜0.01).The serum levels of IGF-1,IGFBP-3 were significantly increased compared to pre-treatment (F =34.52,14.04,all P ＜ 0.01),especially for serum IGF-1,which maintained at a high level after 3 months of treatment and up to peak after 6 months.However,the ratio of IGF-1/IGFBP-3 showed no increase after treatment (F =1.82,P ＞ 0.05).There was a significant positive correlation between the serum level of IGF-1 and △HtSDS after the rhGH treatment within six months (r3 =0.72,r6 =0.91),while there was no correlation between them after 9 months (r9 =0.26,r12 =0.33).There were no serious adverse events during the rhGH treatment.Conelusion The serum levels of IGF-1,IGFBP-3 were significantly increased after the rhGH treatment,especially for serum IGF-1.There was a significant positive correlation between the serum level of IGF-1 and △HtSDS within six months,but not after 9 months.The rhGH treatment could be a safe and effective strategy for SGA children.