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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.
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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.
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Objective To evaluate the effect of transcatheter arterial chemoembolization(TACE)together with portal vein chemoembolization(PVCE)for the treatment of advanced liver carcinomas.Methods Forty-eight patients with liver carcinoma were randomly divided into two groups.Patients in study group(n=22)were treated with TACE together with PVCE,and patients in control group(n=26)were treated with TACE alone.Results Based on the postoperative CT findings and AFP levels,the effective rate of the study group was markedly higher than that of control group and the difference between two groups was statistically significant(P＜0.05).The volume of un-embolized liver tissue in the patients of study group was obviously increased after treatment. Conclusion TACE together with PVCE is superior to TACE alone in treating advanced hepatic carcinomas.The combination of TACE and PVCE can effectively increase the successful rate of surgical resection for the advanced hepatic carcinomas.
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Objective To analyze the correlation factors affecting DSA picture quality and to investigate the DSA value and effectiveness in hepatic arteriography. Methods 36 cases with liver tumor were analyzed through femoral artery intubatton with Seldinger and had hepatic arteriography with RH catheter. Results In the 192 images of 36 cases,the percentage of first-rate image was 92.7%,the second-rate image (9/192) was 5.3%,the third-rate image (5/192) was 2%. Conclusion All of the second-rate images and the third-rate images which were handled with selective image postprocessing can improve picture quality and can reach diagnosis request.
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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.
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Objective To analyze the role of CT scan in the diagnosis of maxilla sinus malignant tumor. Methods Data from CT scan in 17 patients were retrospectively analyzed. All cases were confirmed histologically. Results All cases manifested soft tissue mass in the sinus cavity and sinus wall bone destruction.The tumor could infiltrate out of maxilla sinus through destructive bone or nerve. Conclusion CT scan is an effective examination in diagnosis and evaluation of staging.
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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.
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Objective To investigate the X-ray characteristics and differential points of intra-thoracic malignant lymphoma-Hodgkin’s disease(HD) and Non-Hodgkin’s lymphoma(NHL).Methods The X-ray manifestations of intra-thoracic malignant lymphoma in 66 cases(including HD in 20 and NHL in 46) with complete clinical informations and pathologic results were retrospectively analysed.The lymphadenopathy of the hilar and mediastinum,the changes of the intra-lung and pleura were mainly observed and compared with the pathological results.Try to find the characteristic X-ray appearance of the HD and NHL.Results (1)48 cases had enlargement of lymph nodes of the hilar with/or mediastinum,and common seen in NHL,and the lymphopathy appeared as unilateral or asymmetry in NHL,bilateral or symmetry in HD.(2)The involvement of lymph nodes was mostly the anterior mediastinum and retrosternal in HD,the posterior mediastinum in NHL and to cause the paraspinal line widening.(3)Intra-pulmonary lesions always were interstitial changes and common seen in NHL,and seldom seen in HD.(4)NHL was often accompanied with pleural lesions,and HD not.Conclusion Both HD and NHL have its own X-ray characteristics .Carefully observing and analyzing these characteristics are helpful in diagnosing and differentiating HD and NHL.
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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.
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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)
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Objective To investigate the clinical presentations,pathological features and radiographic appearance of intraosseous well differentiated osteosarcoma and its differential diagnosis.Methods One case of intraosseous well differentiated osteosarcoma was analyzed,and the clinical presentations,radiographic appearances and histological features of intraosseous well differentiated osteosarcoma were summaried on the basis of reviewing the related literatures.Results The age of onset of this disease was mostly within a range of 30~40 years.The scopes of this lesion were almost large,and the metaphyses of the long bone were the major targets of the lesions,especially the inferior extremity of femur and superior extremity of tibia.The tumor appeared as destruction of combined with bony restoration within the medullary cavity.The tumor was composed of fiber and bony tissue which had well differentiated cells with rarely nuclear division.About 50 % of patients was diagnosed incorrectly as benign lesion at first.Conclusion It is difficult to early diagnose intraosseous well differentiated osteosarcoma,but comprehending its pathological,immunohistological features and combining clinic will benefit for the correct diagnosis.
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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.
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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.
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Objective To study the diagnostic value of imageology for pyelic carcinoma.Methods The accuracy of qualitative diagnosis and sensitivity were analyzed by comparing various imaging examinations in 19 patients with pathologically proved pyelic carcinomas.Results Irregular filling defect and hydronephrosis were seen in the renal pelvis and calyces on intravenous pyelography(IVP).On CT scan,when the tumor was small,soft tissue mass was in the renal pelvis and the calyces.When the renal parenchyma involved by tumors,the soft tissue masses with unhomogeneous density,liquefaction necrosis in the renal pelvis and the parenchyma were seen.On contrast-enhanced CT scan,enhancement from slight to moderate was found in the lesion.The lesions were detected by IVP in 9/12 cases,by BUS in 10/16 cases,by CT in 18/19 cases and by MRI in 3/3 cases.Conclusion IVP and CT are the first method of choice to diagnose the pyelic carcinoma,BUS can be used as a screening method.While in evaluating the tumor involving the parenchyma of the ren or distant metastasis,CT and MRI are superior to IVP.
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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.
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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.