Objective To investigate the clinical effects of surgical treatment of acute deep vein thrombosis (DVT) in the lower limbs. Methods Twenty four cases with DVT were treated with a 2～3cm incision at the cross of superficial and deep femoral veins to take the thrombasis out. Moulding thrombasis were pulled up with ova circular tongs, and fragmented thrombi were spilled out of the incision with the prelum arteriol winding from foot to thigh. The artery was rinsed with heparinized saline for three minuets till the femoral vein was completely unobstructed. The vein was sutured, and the wound was drained under negative pressure. Results The near future effects: Limb swelling and pain disappeared in seventeen cases, conditions turned for the better in six cases, and there was no improvement in one case. The long term effects: Twenty one were followed up for an average of one year and three months. All patients had excellent walking and standing except two cases who suffered lower limb swelling and pain occasionally. Conclusions The operation of vein thrombectomy is a simple, easy and excellent approach to treat DVT, especially within six days after the the condition.

Objective To discuss the feasibility of double-low technique applied in aortic MSCTA.Methods Totally 70 patients with BMI not more than 25 kg/m2 were divided into a routine group and an experimental group randomly and equally,and then went through aortic MSCTA.Iohexol (350 mgI/ml) was injected with the velocity of 4 ml/s.The routine group had the parameters as 120 kV,120 mAs and 1.5 ml/kg contrast agent,and the experimental group had the parameters as 90 kV,120 mAs and 1.0 ml/kg contrast agent,while the other scanning parameters were kept the same in the two groups.The radiation doses,contrast agent doses and iodine contents were recorded in the two groups,and the image quality was assessed with double-blind method objectively and subjectively.Results The experimental group had the CT dose index volumes (CTDIvol),dose length product (DLP) and effect dose (ED) significantly lower than those in the routine group (P＜0.05).The two groups had the consistency of subjective scores (Kappa＞0.6) and image quality scores (not lower than 2) meet the desired requirements,and there were no significant differences between the scores (P＞0.05).Objective evaluation showed that the signal values of aortic trunk and major branch vessels as well as image noise SD of the experimental group were obviously higher than those in the routine group (P＜0.05).There were no statistical differences between the signal noise ratios (SNR) and contrast to noises (CNR) in the two groups (P＞0.05),The iodine content in the contrast agent of the experimental group was significantly lower than that in the routine group (P＜0.05).Conclusion Double-low technique applied in aortic MSCTA of the patient with BMI not more than 25 kg/m2 reduces the radiation dose and iodine content in the contrast agent,has the image quality meet the desired requirements,and thus is of great value for clinical application.

Objective To evaluate the effct of full increase of three-dimensional conformal radiotherapy on esophageal carcinoma.Methods 86 Esophageal cancer patients which has been pathologically confirmed were randomly divided into study group and control group.The control group showed in tumor invasion scope simulator under barium meal positioning,with three fields outside irradiation;Total dose of DT with 63～70 Gy,35 times,seven weeks to complete.Study group showed that full use of additional 3D treatment planning system design individualized treatment programs,90% of the dose contains all planned target volume,future confonnal irradiation DY 44～50 Gy,after the wild-shrinkage increases to a total dose DT66～75 Gy,30 times,completed six weeks.Results The study group and the control group after radiotherapy in a local control rates were 86.4%and 64.3%(x2=4.5420,P＜0.05).Overall response rate(CR+PR)in two group were 93.2%and 76.2%(x2=3.6014,P=0.0577).Two toxicity of the difference was not significant.Conclusion The increase in full three-dimensional conformal radiotherapy of esophageal emleer in the near future is better than conventional methods.

Objective To discuss the radiological characteristics and improve the diagnostic ability of SARS in children. Methods The clinical data and X-ray findings of 35 SARS cases who hospitalized during Jan, 2003～Apr, 2003 were retrospectively analyzed. Results Chest X-ray features were as follows: massive consolidation (27 cases, 77.1%), pulmonary interstitial infiltration (6 cases, 17.1%), and mixed pattern (2 cases, 5.7%). There were two patients with emphysema, but no patient with lung abscess or pleural lesion. The radiological dynamic changes showed that the lesions of lung appeared early, the severest period was between the fifth day and the seventh day, the X-ray findings were not consistent with physical sign, and the absorption of lesion was slower than the clinical process. Conclusion There are some certain radiographic characteristic in children with SARS. A correct diagnosis can be made by closely combining the X-ray findings with clinical and laboratory results.

Objective To strengthen the understanding of the imaging features in congenital aberrant left pulmonary artery (CALPA). Methods All 4 patients underwent chest film and Doppler echocardiography. Thres cases were examined by enhanced spiral CT examination. In addition, MRI and DSA were performed in 2 cases respectively. Thres cases were proven by surgery or autopsy. Results (1) appearances on chest films included cardiomegaly, pulmonary overvascularity, left hilum a little lower than the right one, emphysema, atelectasis, and pneumonia. (2) bronchography showed stenosis of trachea and/or bronchia. (3) Barium esophagram showed an imprint on the left anterior wall of esophagus. (4) Contrast-enhanced spiral CT and MRI showed marked dilatation of main pulmonary artery (MPA) and the root of MPA extended backward to become right pulmonary artery (RPA), the left pulmonary artery (LPA) arose from the RPA directly. (5) echocardiography indicated LPA arose from RPA. (6) DSA showed MPA was marked dilated, and LPA arose from RPA. (7) other abnormalities included 3 PDA, 2 PLSVC, and ~1 ASD. Conclusion CT and MRI are the best methods to diagnose CALPA.

In this study, two experimental patterns of autogenous nerve replantation in situ and centrocentral nerve simple suture were performed on the rabbit median and ulnar nerves. By light and transmission electron microscopy and immunohistochemistry, the results showed that autogenous nerve replantation in situ could inhibit neuroma formation, and its mechanism might that two proximal stump axons could conjunct within interpolated graft segment, and the nerve simple suture could not inhibit neuroma development for lack of proper environment for conjunction of two proximal stump axons.

Hypertension is classified to fire-heat constitution,yang deficiency constitution,phlegm-wet constitution and yin deficiency causing predominant yang constitution on base of consititutional theory. The therapeutic method of TCM is to modify the unbalance of constitution of hypertension patient.

Objective:To investigate the immune mechanism of 5-fluorouracil(5-Fu) and Octerotide(Oct)in the treatment of severe acute pancreatitis(SAP)and it’s kidney injury.Methods:55 male SAP rats induced by retrograde infusion of 5% sodium taurocholate into bilopancreatic duct were randomly divided into 3 groups:Normal saline group(n=17)were treatmented with normal saline infusion,Oct group(n=18):The first dose of Oct was 2?g/100g iv,then 0.2?g/(100g?h)continuous injection,5-Fu group(n=20):The dose of 5-Fu was 2mg/h?12h.Rats from each group were killed at 12h after opertation.The plasma levels of tumor necrosis factor-?(TNF-?),interleukin-1(IL-1)were assessed by ELISA method.Thromboxan B_2(TXB_2)and prostaglandinE_2(PGE_2)were assessed by radioimmunoassay method.The expression of TNF-? mRNA was detected by RT-PCR.The apoptosis rate of rat kidney tissue were detected by TUNEL method.Apoptosis rate of NRK cell treated by serum of different groups were assessed by flow cytometry methods.Results:The plasma level of TNF-?、IL-1 and TXB_2 in 5-Fu and Oct group were much lower than that in normal saline group.The expression of TNF-? mRNA of kidney tissue decreased significantly after the SAP was treated by 5-Fu or octreotide.The apoptosis rate of NRK cell disposed by normal saline group,oct group,5-Fu group and control group rat plasma were (38.67?11.4)%,(20.4?18.4)%,(10.5?11.0)% and (1.7?2.2)% respectively(P

Objective To probe imaging manifestations of bronchogenic cysts,as that to improve the knowledge of this disease.Methods Imaging features of congenital bronchial cyst in 32 cases confirmed by operation and pathology were analyzed.Results 4 cases of cyst localized in mediastinum ,all were liquid cyst.28 cases of cyst localized in lungs,aqmong them,22 cases were air-liquid cyst and 6 cases were air cyst,the diameter of lesions was 1~10 cm,there were 2 cases with pyothorax,4 cases with pulmonary maldevelopment,one case with brochio-pleural fistula.The cysts appeared as round or similar round,the walls of cyst was thin.The wall of cyst was obscure and there was infiltrating shadow around cysts when in company with infection.Conclusion X-ray and CT are very important in diagnosing congenital bronchial cysts,CT scan is of very help in diagnosing the compley cysts.