Objective To design a vehicle-mounted X-ray diagnosis simulation training system based on the field X-ray diagnostic vehicle to solve the problems during its training and utilization.Methods The field X-ray diagnostic vehicle had its internal and external structure analyzed,and was divided into several functional modules.The technologies of computer programming and database were used for the simulation of the modules.An example was given to simulate the operating process of the vehicle by establishing traumatic condition model,war injury image library and etc.esults The system developed realized the simulation training of the vehicle,and the trainee gained feedback after simulation as references.Conclusion The system implements informatized training of the field X-ray diagnostic vehicle,shortens the training period,decreases the training cost and increases the training efficacy.

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.

Lymph node dissection was the key procedure of pancreatic surgery.The majority of guidelines indicated that extended lymph node dissection was helpless for improving survival rate.However,there were still quite a few researches which demonstrated that the extended dissection was a valuable procedure.It was still a controversial topic considering lymph node dissection.To review the shortcomings of previous randomized controlled trials (RCT),this article combined the experience of new techniques in pancreatic surgery,which are developing rapidly in recent years,and our theory and practice of radical resection of retroperitoneal lipo-lymphatic layer (RRRLLL).Therefore,the controversy and update of extended lymph node dissection for pancreatic head carcinoma were discussed,which could provide references for standardizing the treatment of extended lymph node dissection in clinical practice.

Central pancreatectomy is an ideal surgical procedure for the treatment of benign or low-grade malignant tumors in the pancreatic neck or the proximal body of the pancreas,and it can preserve more normal pancreatic tissue in order to reduce the incidence of endocrine and exocrine insufficiency after surgery.Although some clinical studies have demonstrated the feasibility and safety of this procedure,laparoscopic central pancreatectomy was technically challenging with a few number of cases.This article reviews the current status of laparoscopic central pancreatectomy and introduces our clinical experience of laparoscopic central pancreatectomy and pancreaticojejunostomy.

The aticle briefly introduced the working principle and clinical applicability of Coblation. The application of Coblation promoted the improvement of traditional surgery and the generation of new operation, it is the most important to hold the indication of the operation strictly. This review summarized that and discussed the advantages and the notes of Coblation in operations of the pharynx and larynx.
Humans ; Larynx ; surgery ; Laser Therapy ; Pharynx ; surgery

Objective To compare the effects of different methods of honey sunburn on the contents of calycosin and formononetin in Hedysari Radix; To provide the basis for the establishment of the optimum processing technology. Methods By frying (traditional method), baking, and microwave methods put Hedysari Radix under honey sunburn. Agilent HC-C18 column (4.6 mm × 250 mm, 5 μm) was used; the mobile phase was acetonitrile-0.01% phosphoric acid solution, gradient elution (0–12 min, 30%–33% acetonitrile; 12–13 min, 31%–40% acetonitrile; 13–25 min, 40% acetonitrile) with velocity of 1.0 mL/min; detection wavelength was 248 nm;the column temperature was 30 ℃; sample volume was 10 μL. Results There was statistical significance in the contents of calycosin and formononetin of different methods of honey sunburn for Hedysari Radix. Among them, the contents of calycosin and formononetin in Hedysari Radix processed by honey roast were the highest, 7.9116 and 49.6996 μg/g, respectively; the contents of calycosin and formononetin in Hedysari Radix processed by traditional method were the lowest, 4.7767 and 37.2910 μg/g, respectively; the contents of calycosin and formononetin in raw Hedysari Radix and Hedysari Radix by honey microwave method were the same, 5.0802, 42.7989 μg/g, and 3.9839, 42.3145 μg/g, respectively. Conclusion Different honey sunburn methods for the contents of calycosin and formononetin in Hedysari Radix have certain effects, and honey roast method is the optimum method.

BACKGROUND: With the development of neural interventional therapy, the application of covered stents in neural intervention is becoming a topic of general interest.OBJECTIVE: To introduce the structure of stent-graft, and to summary the application of covered stents in clinical treatment of the neural interventional therapy and the shortage of covered stents.RETRIEVAL STRATEGY:The relevant articled were searched for in Pubmed database by researcher of this article with the key words of "stent graft, covered stents, cerebrovascular disease" in English, and with the key words of "covered stent, cerebrovascular disease" in Chinese in VIP database. 223 English and 196 Chinese articles were selected and reviewed primarily. Inclusive criteria: Articles having a close relation with the application of covered stents in neural intervention, especially in cerebrovascular disease, and the latest articles or articles published in authority journals in the same field were chosen. Exclusive criteria: articles with repetitive studies were excluded.LITERATURE EVALUATION: 223 English and 196 Chinese articles were primarily checked by reading titles and abstracts. Among the 31 collected articles, 4 are reviews, 3 are experimental studies and others are clinical studies.DATA SYNTHESIS: Covered stents show special advantages in neural interventional therapy and become a hot spot in present study. There are individual case reports or small group case reports on the application of covered stents in hemorrhagic cerebrovascular disease. It is reported that the covered stent effectively occludes aneurysm, dissecting aneurysm and arteriovenous fistula, keeps patency of the parent artery. The covered stent isolates ulcerated plaque via physical barriers, avoids the abscission of embolus, which can further reduce the development of embolism in percutaneous carotid artery stenting. After releasing covered stents, polytetrafluoroethylene makes the disepiment smooth. Its good biocompatibility reduces thrombosis, and then decreases the incidence of restenosis. Covered stents in vessel for cerebrovascular disease have achieved good effects, but there are some problems in clinic as follows. ①The main shortage of covered stents is to occlude small branch vessels. ②Thrombosis and restenosis occur after covered stenting. ③Covered stents increase the volume of the stent, reduce the compliance and flexibility of the stents, and increase the pushing difficulty and vascular injury. ④Covered stents cannot be used in vessels of less than 4 mm.CONCLUSION: Covered stents for intracranial ischemic and hemorrhagic diseases shows significant outcomes, but there are disadvantages. With the clarification of the related theories and the improvement of new material technology, there will be a brighter future of the application of covered stents for treatment of cerebrovascular diseases.

ObjectiveTo explore the cytogenetic characteristics of multiple myeloma (MM) patients,to evaluate the effect of a long-term culture stimulated by cytokines on cytogenetic study of MM,and to investigate the clinical detection value of RB1 and P53 deletion in interphase plasma cells by using fluorescence in situ hybridization (FISH).MethodsKaryotype analysis was performed in 81 MM patients by using the short-term culture of bone marrow cell and G-banding technique.Among the 81 MM patients,28 patients used two culture methods:one was the short-term culture and the other was to culture cells for 6 days with recombinant granulocyte-macrophage colony-stimulating factor (GM-CSF) (40 μg/L) and IL-6 (10 μg/L).RB1 and P53 deletion were detected on interphase plasma cells by using FISH in 31 patients.ResultsAmong the 81 patients,75 had enough metaphases for analysis.Among the 75 patients,31 (41.3％)had clonal karyotypic abnormalities including 4 numeric abnormalities,11structural abnormalities and 16 both abnormalities.Among the 28 patients using two culture methods,the clonal karyotypic abnormalities were detected in 6 patients(25.0％ ) in the group of cultured for 24 hours,and 14 patients (51.9％) in 6-day culture group with a significant difference (P =0.026).RB1 deletion and P53 deletion were detected in 10 patients (32.3％ ) and 11 patients(35.5％ ),respectively,with both RB1 and P53 deletions be detected in 5 patients ( 16.1％ ).ConclusionsMore than half of the tested MM patients have both numeric and structural chromosome abnormalities.The karyotype analysis using banding technique is basic cytogenetic study.Extended culture in the presence of IL-6 and GM-CSF could improve the efficiency of cytogenetic analysis to MM.Interphase FISH is a sensitive method of clinical application significance to detect the gene deletion of MM.

Objective To analyze the space-time characteristics of hand-foot-mouth disease (HFMD) in Shijiazhuang by using geographic information system (GIS).Methods The data of HFMD during 2009 to 2011 in Shijiazhuang were collected and GIS database was created.Special map was drawn by PHGIS software to analyze the space-time characteristics of HFMD in Shijiazhuang.Results The epidemic situation of HFMD in Shijiazhuang appeared sporadic with local centralization.The attack ranked alternately rise year after year and high epidemic areas were geographically complimentary.Overall epidemic levels tend dropping from 2009 to 2011 and there were differences among areas.The high-attack areas of HFMD changed over time.Conclusions GIS can provide direct-viewing of the space-time characteristics of HFMD and further understand the prevalence of HFMD,which could help to provide the scientific basis of HFMD control in Shijiazhuang.

Objective To evaluate the clinical and imaging characteristics of osteoid osteoma in femoral neck and to improve diagnostic accuracy of this disease.Methods Twenty-one patients (18 males and 3 females,age,7-26 years,median age,13 years) with pathologically proven osteoid osteoma of the femoral neck were retrospectively analyzed for their clinical profile and radiologic features.CT and X-ray examinations were performed in all patients,10 of them pefformed post-contrast CT scan and 4 of them performed MRI examinations.Results Nineteen patients had hip pain (pain worse at night in 11,and 8 received salicylates treatment with good response),and 2 patients only with intermittent claudication.The duration ranged from 2 months to 54 months (median duration 12 months).X-ray: Nidus was seen on plain film in 10 cases,18 cases showed different degrees of bone sclerosis of the nidus.CT: Nidus was demonstrated in all cases.Among them,8 were intracortical,6 were subperiosteal,7 were endosteal.Twenty cases showed different degrees of bone sclerosis of the nidus-extra-articular anteromedial cortical surface of the femur neck.Nineteen cases showed vascular groove sign.MRI: Nidus was seen in 4 cases.Bone sclerosis was low signal on all sequences.Three cases had joint effusion,4 cases had bone marrow edema,and 2 cases had synovial thickening.Conclusions Although osteoid osteoma of femoral neck has non-specific clinical features,the radiographic findings are usually typical.The nidus of osteoid osteoma is often located within the joint.Bony sclerosis occurs at the area of extra-articular anteromedial cortical surface of the femur neck.CT examination remains an optimal method to identify the nidus.