Objective To investigate the application of computed radiography(CR) in X-ray projection of whole lower limbs.Methods The radiography in the patient with bilateral knee-malformation was performed using 500 mA X-ray apparatus and several imaging plates(IP) jointed together,then the images including whole both sides of lower limbs were obtained by post-proccesing technique.Results The images not only could show the whole lower limbs on a single film,but be intact.The images also could be used for measuring the length of leg,the angle between the axises of the thigh and the magnifying really.Conclusion The image of whole bilateral lower limbs with a good quality and unity can be acquired using CR and post-processing technique appropriately.

Objective To study the X-ray signs of lung injury in acute ammonia poisoning.Methods The X-ray features of lung in ammonia poisoning in 37 cases were analysed and all patients were followed up for one year.Results The X-ray signs of lung in early of ammonia poisoning in 35 cases included increase of lung markings,lobular pneumonia,pulmonary interstitial emphysema and pneumonedema.In advanced stage in 15 cases,chronic bronchitis,pulmonary interstitial fibrosis and pulmonary bullae.Conclusion It's irreversible of injury that caused by acute ammonia poisoning in lung.

Objective To determine the location and degree of fallopian tube obstruction,providing a safe reliable and effective treatment. Method 50 infertile women with unilateral or bilateral fallopian tube stenosis, adhesion and obstruction were selected for this study, with ages range of 23 to 38 years. Selective salpingography was performed using co-axiol catheterization with micro-guide wire mechanism combined with recanalization, anti-inflammatory agents during the procedure and postoperative period. Results The rate of properly performed catheter and recanalization reached 92% and 68.7%, respectively. During the follow-up of one year, 23 cases (23/50, 46%) obtained ability of pregnancy. Conclusion Selective salpingography with fallopian tube recanalization is a minimally invasive method to treat tubal infertility. (J Intervent Radiol, 2006, 15: 290-292)

With extensive application of interventional radiology technique, skilled and standardized manipulation of DSA is very helpful for interventional operations. It is introduced in this paper how to operate the Siemens dBA which is the first domestic one and settle with the problems met in routine work.

Objective To assess the usefulness of the DPF with Store Fluoro for interventional treatment. Methods Store Fluoro were performed in 187 cases and the dose was compared with that not using it. Results The doctor and the patients′ radiology dose and the volume of the contrast were all reduced. Conclusion The Store Fluoro plays an important role in interventional treatment.

Preoperative portal vein embolization(PVE)has become an important tool in the management of selected patients with hepatic cancer before the major hepatic resection is carried out.PVE can redirect the portal flow to the intended future remnant liver tissue in order to induce the hypertrophy of the non-diseased portion of the liver and thereby may reduce the occurrence of complications and shorten the hospitalization days after surgery.This article aims to review the technical and clinical considerations in performing PVE and to discuss the PVE-related practical points,including the relevant anatomy,the access approach,the choosing of embolic agents and the pathophysioiogy of PVE.In addition,the indications and contraindications for performing PVE,the use of combination therapies and the concern for tumor growth after PVE are also discussed.

Objective To discuss the clinical application of feeding-artery embolization in treating massive hemoptysis.Methods The feeding-artery angiography was performed in 72 patients with massive hemoptysis.Based on the angiographic findings polyvinyl alcohol(PVA)or spring coil were selected as the embolization materials.The therapeutic results were retrospectively analyzed. Results Hemoptysis was completely controned almost immediately after the embolization procedure in 46 cases,while it was obviously alleviated in 13 cases.In 11 cases the hemoptysis disappeared completely after 2-4 times of embolization treatment,and in 2 cases surgery had to be employed.Conclusion Embolization of feeding-artery with PVA particles or spring coils is an effective and safe treatment for massive hemoptysis.The key point for decreasing reoccurrence is to occlude all feeding.arteries as far as possible.

Objective To evaluate the clinical application of postprocessing technique of spiral CT images in chest diseases.Methods Chest spiral CT was performed in 105 cases and 10 normal controls.The postprocessing images were done using software and compared to conventional CT, fiberoptic bronchoscopy, operation and pathological results. Results The postprocessing images had better MPR and 3D view of organs, nice contrast between of lesion and sorroundings structures.This postprocessing techniques provided more informations in observing and analysing the chest disease.Conclusion Postprocessing technique of spiral CT images is an important complimentation for 2D CT analysis, and has many advantages especially on thoracic disease diagnosis,but they should be applied in combination with two-dimensional CT to achieve accurate diagnosis.

Objective To explore the clinical value of imaging examinations of medullary sponge kidney with the literature reviewed.Methods The features of X-ray plain film (1 case),IVP (2 cases),B-mode US(3 cases) and CT images (9 cases) of medullary sponge kidney (MSK) in 11 cases were analysed retrospectively.Results X-ray plain film showed a cluster of round and oval high density images in renal papillae and renal medulla in one case one kidney.Collecting tubes were showed as like line,brush and sac like dilatation on IVP in 2 cases 3 kidneys.B-mode US revealed a cluster of high echo spots scattered in renal medulla in 3 cases 5 kidneys and sac like dilatation of collecting tubes in 2 cases 3 kidneys.CT images showed the stones of spongiform kidney scattered alone renal medulla in 9 cases 16 kidneys,while the stones covered by contrast media on enhanced CT images in 3 cases 5 kidneys,and enhanced stripes of high density projected from renal papillae to renal medulla.Conclusion X-ray plain film,IVP,B-made US and CT all can be used in diagnosing spongiform kidney.Plain film and IVP are yet the first selected methods and IVP is specific and direct in showing collecting tubes dilatation.B-mode US especially CT have a high showing rate of stone in spongiform kidney and can be helpful to evaluate the collecting tube dilatation.

Objective To investigate the imaging diagnostic value of ureter cysts.Methods The intravenous pyelogram(IVP), CT MRI and ultrasonic data of 17 cases of ureter cyst were analysed trtrospectively. Results All patients were correctly diagnosed preoperatively. The application of US and intravenous cystography may aid to improvement of diagnosis.Conclusion The combination of multiimaging modalities was proved to be of great value in diagnosis of ureter cysts.