Child ; Critical Illness ; classification ; Emergency Medical Services ; standards ; Humans ; Intensive Care Units, Pediatric ; standards ; Quality Assurance, Health Care ; Severity of Illness Index

Objective:To comparative Research with MSCT and CAG in the myocardial bridge-wall diagnostic coronary. Methods: Selected 93 patients for the study in January 2011 to the end of December 2013,MB-MCA patients diagnosed in Beijing North Hospital, all patients underwent catheter coronary angiography (CAG) and 64-slice spiral CT (MSCT), comparison of the diagnostic accuracy of the two inspection methods, and the results of the correlation analysis, results processing and analysis using statistical software SPSS17.0. Results:MSCT and CAG were two examination methods in the diagnosis of superficial and deep type MB-MCA, with a high degree of consistency in the diagnosis of MB-MCA average length, average depth comparison with statistical significance(t=3.021, t=3.758;P<0.05), there was not statistically significant comparison in the narrow detection rate. Conclusion:MSCT as a novel, non-invasive means of MB-MCA examination, the diagnosis results are reliable, accurate and capable of providing a richer diagnostic information for clinicians, clinician and patient can be widely applied.

Objective: To discuss the value in the differential diagnosis of benign and malignant in ulmonary ground-glass opacities with multislice spiral CT. Methods: Selected 31 patients in Beijing North hospital with spiral CT examination of the chest as the research object, the lungs differential diagnosis of ground-glass image analysis to pathological findings as diagnostic criteria, analysis Imaging features of benign and malignant grinding glass shadow. Results: Malignant lesions with pleural indentation, spiculation, lobulation, such as performance-based, clear boundary between the two groups in the pleural indentation, spiculation, points Ye Zheng, clear boundary comparing with statistical significance(x2=11.138, x2=6.482, x2=4.306, P<0.05). Meanwhile benign lesions showed a round or oval, and malignant lesions with irregular shape and multi-nodular-like performance-based fusion of the two groups in a round or oval, irregular and more fusion-like nodules difference was significant, the statistical significance (x2=11.138, x2=6.482, x2=4.306, P<0.05). Conclusion:Application of multislice spiral CT examination of the chest can be on the ground glass by special signs and morphological comprehensive analysis, benign and malignant, with a high value.

Objective To discuss the effectiveness of tracer methodology in the training of intern medical record writing. Methods Fifty interns who received medical record writing training in July 2012 were set as control group and were trained by traditional methods. Meanwhile, 58 interns who received medical record writing training in July 2013 were set as investigation group and were trained by tracer methodology. Pre-training questionnaire survey was conducted for interns in investigation group and targeted training was provided. After the training, interns in two groups were surveyed by questionnaire of basic norms of medical record writing. Excel software was used to do data entry and SPSS 21.0 statistical software was used to statistical analysis. P<0.05 signifies statistical differences. Results Final record writing exam after the training demonstrated that there were significant differ-ences in basic requirement of record writing, basic principle of record writing, history taking, record time limit, contents of record writing and correct rate of patients' answer to the document between in-vestigation group and control group with statistical differences(P<0.05). Conclusion Tracer method-ology has obvious effects in intern medical record writing training and is worth popularization and ap-plication in clinical teaching.

Objective To establish chemiluminescent immunoassay(CLIA) for quantitative detection of Rabies virus antibody in human serum.Method The purified antigen was coated on the microplate,pairing with alkaline phosphatase(ALP)-labeled antigen and luminescence substrate CSPD,then the double antigen sandwich CLIA was established.Results The sensitivity of the assay was 0.2IU/ml.The linear range was from 0 IU/ml to 200 IU/ml.The precision was less than 10%.The analytical recovery rate was from 90% to 110%.Conclusion The CLIA is a simple,sensitive,special and repeatable method for detection of Rabies virus antibody.It was suitable for clinical application.

As a rapid prototyping technology,three-dimensional (3D) printing is widely used in diagnosis and treatment of cardiovascular diseases.There are variable methods of 3D printing,and different forming methods have their respective advantages and disadvantages.3D printing plays an important role in congenital heart disease,valvular heart disease,aorta disease and arrhythmia.The application and the research progresses of 3D printing based on medical imaging in diagnosis and treatment of cardiovascular diseases were reviewed in this article.

Aspheric intraocular lenses(IOLs)have been shown to provide better quality of vision than spherical IOLs.However,these lenses are not ideal for all patients.Surgeons may have different strategies for compensating for the patients's cornea spherical aberration,targeting a postoperative spherical aberration of zero or +0.10 ?m.But we must know that the negative spherical aberration aspheric IOLs require very good centration with respect to the visual axis of the eye.

Objective To study the relationship between tissue factor expression and cell metastatic ability in two breast carcinoma cell lines. Methods RT-PCR and flow cytometry(FCM) were used to detect the mRNA and protein expressions of tissue factor(TF) in the breast carcinoma cell lines MCF-7 and MDA-MB231, respectively. The metastatic ability of the two breast carcinoma cell lines was determined using modified Boyden chambers. The data were analyzed by t test. Results The mRNA and protein expression levels of TF in MDA-MB231 were obviously higher than those in MCF-7, and the metastatic ability of MDA-MB231 was stronger than that of MCF-7,which was significantly different between the two cell lines. [WTHZ]Conclusion TF expression was positively related with breast carcinoma metastatic ability, and TF may be a therapeutic target for breast carcinoma.

Objective To study the level of serum vascular endothelial growth factor(sVEGF)in advanced non-small cell lung cancer(NSCLC) and its clinical significance.Methods Serum level of VEGF was detected by ELISA method in 96 patients with advanced NSCLC.sVEGF level was analyzed after giving 2-4 cycles of cisplatin-based chemotherapy.At the same time,serum level of VEGF in 50 healthy controls was detected.Results The level of sVEGF was significantly higher in patient with lung cancer than in control group (P＜0.01).No statistical significant defference was observed between sVEGF level of stage Ⅲ and Ⅳ NSCLC patients,the patients with squamocellular lung cancer and adenocarcinoma(P＞0.05);Descended sVEGF level was found in the patients with response to chemotherapy(P＜0.05).Conclusion sVEGF can be used to evaluate chemotherapy response and diagnoses in the patients with advanced NSCLC.