Objective:Based on the laws about medical equipments industry to analyze the basis, key points and methods of medical equipments qualification auditing.Methods: According to the present the qualification documents requirements, medical equipment category were divided into 3 types (categoryⅠ, categoryⅡand categoryⅢ)by risk degree with decreasing order. The qualification and key point of disinfection supplies and each kind of equipment (including in vitro diagnostic reagents) were explained.Results: The main work of medical equipments qualification auditing were confirmed.Conclusion: It is important way to guarantee the safety of clinical diagnosis and treatment through we strengthen the auditing of medical equipments and the qualification documents of suppliers.

Objective:To investigate a working program of medical equipment file management. Methods: To analyze the importance, compositions and features of medical equipment files, and propose a life-cycle working program of medical equipment file management. Results:To introduce the approach and experiences of the construction of medical equipment life-cycle file management system in our hospital. Conclusion:The construction of medical equipment life-cycle file management can provide full and accurate basis for asset management, equipment maintenance, and supervising purchasing behavior.

In the course of emerging infectious disease learning,comprehensive methods including comparing the similarity of emerging infectious disease and classical infectious disease,uniting the general introduction and the typical examples explanation,strengthening the multimedia teaching and the case based teaching were adopted to strengthen the effect of teaching.

Communion is an important way to study.Interaction is the most notable character of network.This paper introduces some experience on how to bring net interaction into play in the network-based medical teaching.

BACKGROUND: Appropriate direction and angle of traction for the vertebral artery type cervical spondylosis(CSA)make significant effect.Selective angiography is recognized as"gold standard"to diagnose the vascular disease.Although magnetic resonance angiography as a non-invasive examination,there exist shortcomings such as a longer time checking,vulnerable to man-made factors,a certain aggressive feature.OBJECTIVE: Through the use of color Doppler flow imaging(CDFI)and transcranial Doppler sonography(TCD)adding the test of turning neck,to analyze the change of blood current parameter before and after the tractions from different directions and angles.METHODS: 240 cases suffering CSA were selected and divided into groups according to anatomy angle of lesion parts(upper cervical segments,lower cervical segments,mixed type)and traction mode,angel(anteversion sitting position 1°-10°,11°-20°,21°-30° groups,posterior extension sitting position 1°-10°,11°-20°,21°-30° groups,neutral position sitting position group).Local massage served as control group.The indexes of vertebral artery of neck part including inner diameter(D)of narrowest location,peak systolic velocity and average velocity of blood were measured by CDFI adding the test of turning neck.The indexes of left vertebral artery,right vertebral artery and basiiar artery including peak velocity(Vp)of period of contraction and mean velocity(Vm)of blood were measured by TCD adding the test of turning neck.RESULTS AND CONCLUSION: ①We determined vertebral artery type of cervical spondylosis on the base of anatomic site. On the basis of diseased region,we divided cervical syndrome into 3 types.They were superior part(C1-C3),inferior part (C4-C6) and commixture.it offers clinical guidance for traction therapy from spondylous morphous and mechanics.② We determined the gbest angle of traction.The therapeutic efficacy in posterior extension sitting position occupying 11-20～was better in upper hind neck;the therapeutic efficacy in anteversion sitting position occupying 11-20° was better in inferior neck; the therapeutic efficacy in anteversion sitting position occupying 1-10° was better in neutral position sitting position.③ We knew that CDFI and TCD are the convenient,non-invasive,safe and reduplicative methods to guide traction therapy in vertebral artery type of cervical spondylosis.

OBJECTIVETo evaluate the technique and significance of the sentinel lymph node (SLN) biopsy using different methods in patients with breast cancer.

METHODSSeventy-one female patients with node-negative breast cancer diagnosed by fine needle biopsy or frozen section underwent lymphatic mapping. They were divided into 4 groups: methylene blue, isosulfan blue, (99m)technetium-labelled sulfur colloid, combined vital blue dye and radiocolloid. The number of each group was 24, 29, 8 and 10 respectively. The SLN was identified and removed, followed by a definitive cancer operation, including a complete axillary node dissection. Pathological examination of the SLN was made with HE and immunohistochemical staining. Pathologic characteristics of SLN and other axillary nodes were analyzed.

RESULTSAmong the 71 patients, 60 were (84.5%) confirmed by SLN biopsy. The positive rates were 75.0% (18/24) for methylene blue group and 86.2% (25/29) for isosulfan blue group, respectively. Seven positive cases were detected by (99m)technetium-labelled sulfur colloid and all the positive cases by combined vital blue dye and radiocolloid. The total sensitivity was 83.3% and the sensitivity for each group was 70.0%, 90.0%, 100% and 100%, respectively. The total false negative rate was 16.7% and the false negative rate for each group was 30.0%, 10.0%, 0 and 0, respectively. The total accuracy rate was 93.3% and the accuracy rate for each group was 83.3%, 96.0%, 100% and 100%, respectively. The time of finding the SLN was 29, 22, 7, 6 min respectively.

CONCLUSIONSSLN biopsy is technically possible in patients with breast cancer. Most of SLNs can probably reflect the histological characteristics of the axillary lymph nodes. Combination of vital blue dye and isotope makes mapping exact and satisfactory and it may be the best choice among the four methods.

Objective To analyse the relationship between the left ventricular longitudinal systolic velocities quantified by DTI and the cardiopulmonary performance in patients with dilated cardiomyopathy(DCM). Methods Maximal oxygen consumption(VO2max) and systolic velocities were assessed in 68 patients with DCM during their regular follow-up. Peak velocities during isovolumic contraction (is) and ejection (ez) were assessed at the site of anal, at the middle of the wall, and at the middle site between the two sites of interventricular septum (S), lateral wall (L) of LV in apical 4 chambers view. Results Peak velocities during IVC and ejection in group of patients(32cases) with VO2max

Objective: The purpose of this study is to analyze the nasal morphological characteristics in Chinese adult, of Han nationality, by the measurements in sagittal plan and the proportionality between nose and facial structures, in order to provide aesthetic references for rhinoplasty, and individual surgical planning. Methods: During 2017 November to December, 258 healthy Han Youth volunteers were included. Three-dimensional (3D) models of the facial characteristic information were collected using Artec 3D scanner, by standardized procedures. The nasal and facial distances and angulations were measured, based on predesigned facial landmarks. Thereafter, the proportions of above measurements were calculated. Results: There was no significant difference between genders in absolute prominence. As for relative prominence, male nose is more prominent, resulted in a more stereoscopic facial profile. The nasal basal plane of both male and female, was more anterior than the infraorbital points, with 7% of the absolute degree of the infraorbital points. The range of the angle between the nasal basal plane and coronal plane was 2-4 degrees. Conclusions This study sets a database for the external nasal characteristics of the young adult in Chinese Han nationality, which could provide quantitative references for preoperative evaluation and individually surgical planning.

Objective To explore the levels of urine iodine in mothers and urine iodine and blood thyroid-stimulating hormone (TSH) in their neonates, and the correlations. Methods A total of 695 pairs of mothers and their neonates were included. Urine sample of both mothers and newborns were collected and the levels of urine iodine were detected. Heel blood sample of newborns were collected and the levels of TSH were detected. Results The median urine iodine level in 695 mothers was 212 . 9μg/L, among whom 163 case ( 34 . 39%) were iodine deifcient (?5 mIU/L in neonates whose mother were iodine deifcient or excessive were higher than those in neonates whose mother were iodine adequate or more than adequate, and the difference was statistically signiifcant (P

Objective To research the jugular foramen,internal auditory pore (IAP)and the turning point between its components by imageological methods and to provide theoretical basis for retrosigmoid approach in the operation of acoustic neurinoma.Methods The skulls of 100 volunteers were scanned to get the final result with thin-section computed tomographic image. High-resolution spiral CT multiplane reformation was used to reform images that were parallel to the Frankfort horizontal plane to measure the distance between the turning point of retrosigmoid (A),the edge of jugular foramen(B)and the lower edge of the internal auditory canal(C)(denoted AC,AB,BC) and the shortest distance from the jugular foramen to AC.The angles between AC,AB and sagittal axis(α,β) were measured.Results The distance of AC was (44.94 ± 3.84)mm,the distance of AB was (43.68 ± 4.56)mm.The distance of BC was (6.15 ±2.04)mm,and the shortest distance between jugular foramen and AC was (5.21±0.23)mm.The angleαwas measured as (39.50±4.74)°,and the angleβwas measured as (46.35± 5.51)°.Conclusion The research measure the distance and angle between entry points and landmarks of retrosigmoid approach and the safe distance.