Acta radiologica: diagnosis最新文献_第10页

Videodensitometry and chest radiography in the evaluation of pulmonary blood flow and pulmonary oedema in a porcine model of early adult respiratory distress syndrome. 成人早期呼吸窘迫综合征猪模型肺血流和肺水肿的影像密度测量和胸片评价。

Acta radiologica: diagnosis Pub Date : 1986-03-01 DOI: 10.1177/028418518602700221

G Wegenius, P Forsgren, J Modig

{"title":"Videodensitometry and chest radiography in the evaluation of pulmonary blood flow and pulmonary oedema in a porcine model of early adult respiratory distress syndrome.","authors":"G Wegenius, P Forsgren, J Modig","doi":"10.1177/028418518602700221","DOIUrl":"https://doi.org/10.1177/028418518602700221","url":null,"abstract":"The adult respiratory distress syndrome was induced in pigs (n = 11) by a continuous infusion of E. coli endotoxin in order to evaluate the use of radiographic videodensitometry and chest radiography for assessment of pulmonary circulation and pulmonary oedema. A further aim was to determine the effect of an ionic contrast medium, Urografin 60%, on extravascular lung water (EVLW). The infusion resulted in a decline in arterial oxygen tension. Mean pulmonary arterial pressure increased, and cardiac output decreased, resulting in a marked rise in pulmonary vascular resistance. EVLW increased moderately. The corresponding variables in control animals (saline infusion; n = 5) changed very little. Good correlations were found (r = 0.87-1.0) between absolute flows as measured by the thermodilution technique and relative flows as determined by videodensitometry in animals with pulmonary damage. In the endotoxin group there was a significant correlation (r = 0.75) between the change in EVLW from baseline to the final measurement (at 6 hours) and the corresponding change in radiographic density. Radiographic signs of pulmonary damage were sparse. Only 3 of 11 animals displayed increased radiographic density of the lung parenchyma indicative of pulmonary oedema. Pleural effusion developed in 4 animals. Injection of Urografin 60%, 1 ml X kg-1, caused a slight but significant decrease in EVLW. We propose that at this concentration and dosage the contrast medium acts mainly as an osmotic diuretic.","PeriodicalId":7142,"journal":{"name":"Acta radiologica: diagnosis","volume":"27 2","pages":"249-56"},"PeriodicalIF":0.0,"publicationDate":"1986-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1177/028418518602700221","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14835440","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Lumbosacral epidurography and computed tomography. A preliminary report. 腰骶部硬膜外造影和计算机断层扫描。初步报告。

Acta radiologica: diagnosis Pub Date : 1986-03-01 DOI: 10.1177/028418518602700207

C Hårdstedt, N Vucetic

引用次数: 4

Venous malformations in the face and neck. Radiologic diagnosis and treatment with absolute ethanol. 面部和颈部静脉畸形。无水乙醇的放射诊断和治疗。

Acta radiologica: diagnosis Pub Date : 1986-03-01 DOI: 10.1177/028418518602700204

B Berthelsen, I Fogdestam, P Svendsen

{"title":"Venous malformations in the face and neck. Radiologic diagnosis and treatment with absolute ethanol.","authors":"B Berthelsen, I Fogdestam, P Svendsen","doi":"10.1177/028418518602700204","DOIUrl":"https://doi.org/10.1177/028418518602700204","url":null,"abstract":"Venous malformations in the face and neck have a characteristic clinical picture. They consist of a cluster of venous cavities with a very slow blood flow and are normally not demonstrated at conventional external carotid angiography. Previous methods of treatment have been of limited value but recently good results have been reported with instillation of fibrosing agents as Ethibloc and ethanol. Five patients with facial venous malformations were referred for therapy. External carotid angiography was performed and was almost normal in all patients. Superselective catheterization demonstrated the malformation clearly in 2 patients only. Direct puncture phlebography confirmed the diagnosis by demonstrating the venous cavities in all the patients. This procedure was concluded by instillation of absolute ethanol into the cavities. There was a marked reduction in size of the malformation but it was not permanently completely occluded. The treatment was repeated in 4 patients with further reduction of the size, but small remnants are still left. Serious complications with extensive soft tissue necrosis occurred in one patient probably as a result of extravasation of ethanol. The necrosis later healed well after surgical treatment. Instillation of ethanol under radiologic control seems to be a promising way of treatment of venous malformations.","PeriodicalId":7142,"journal":{"name":"Acta radiologica: diagnosis","volume":"27 2","pages":"149-55"},"PeriodicalIF":0.0,"publicationDate":"1986-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1177/028418518602700204","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14835603","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 41

The layering phenomenon and boundary formation in radiographs. 射线照相中的分层现象和边界形成。

Acta radiologica: diagnosis Pub Date : 1986-03-01 DOI: 10.1177/028418518602700216

A E Nilson

{"title":"The layering phenomenon and boundary formation in radiographs.","authors":"A E Nilson","doi":"10.1177/028418518602700216","DOIUrl":"https://doi.org/10.1177/028418518602700216","url":null,"abstract":"In a radiographic examination using a water-soluble contrast medium this may form a layer beneath a body fluid. Between the two liquids a zone consisting of a mixture of the two liquids then forms through diffusion. This diffusion layer produces some characteristic features in the radiographic image, an analysis of which was the purpose of the model experiments performed in this investigation. In this analysis of the layering phenomenon the radiographed objects were cylindrical tubes of methyl methacrylate partly filled with water. In some cases a rod was placed concentrically in the tube. Contrast medium was layered below the water. Radiographs were produced with the tube either vertical or inclined, and with either a horizontal or a vertical projection. In the image the layer of contrast medium was visualized as a light field, and the water layer as an overlying relatively dark field. The diffusion layer was visualized as a transitional zone--the diffusion field. Distinct boundaries and Mach lines observed in the bottom field were produced by the interface between the contrast medium and the solid wall where it was touched by the roentgen rays. These boundaries continued into the diffusion field where they gradually became less visible and eventually disappeared. The upper and lower boundaries of the diffusion field were diffuse and associated with dark and light Mach bands, respectively. The upper boundary appeared to be convex upwards. In the case of the inclined model and a vertical beam the diffusion field was elliptical, with a still more diffuse transition to the fields above and below than in the case of the vertical model and a horizontal beam.(ABSTRACT TRUNCATED AT 250 WORDS)","PeriodicalId":7142,"journal":{"name":"Acta radiologica: diagnosis","volume":"27 2","pages":"217-24"},"PeriodicalIF":0.0,"publicationDate":"1986-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1177/028418518602700216","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14836484","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Effect of hemolysis and clotting on proton relaxation times of blood. 溶血和凝血对血液质子弛豫时间的影响。

Acta radiologica: diagnosis Pub Date : 1986-03-01 DOI: 10.1177/028418518602700217

P Nummi, A Alanen, V Näntö, M Kormano

引用次数: 17

Anatomic variations of the human semicircular canals. A radioanatomic investigation. 人类半规管的解剖学变异。放射解剖学研究。

Acta radiologica: diagnosis Pub Date : 1986-03-01 DOI: 10.1177/028418518602700205

C Muren, G Ruhn, H Wilbrand

引用次数: 12

Sex-linked pattern of collaterals in iliac artery occlusive disease. 髂动脉闭塞性疾病中经络的性别连锁模式。

Acta radiologica: diagnosis Pub Date : 1986-03-01 DOI: 10.1177/028418518602700211

C Conrad, M T Corfitsen, J Fries

引用次数: 3

Routes of infection of acute suppurative thyroiditis diagnosed by barium examination. 钡剂检查诊断急性化脓性甲状腺炎的感染途径。

Acta radiologica: diagnosis Pub Date : 1986-03-01 DOI: 10.1177/028418518602700214

J Ueda, Y Kobayashi, K Hara, B Kishino, H Fushimi, S Sawada

引用次数: 12

Diagnosis of tricuspid insufficiency by Doppler flowmetry in the inferior vena cava. A comparison with right ventricular angiography. 下腔静脉多普勒血流法诊断三尖瓣功能不全。与右心室血管造影的比较。

Acta radiologica: diagnosis Pub Date : 1986-03-01 DOI: 10.1177/028418518602700209

H J Smith

引用次数: 1

Comparison between EEG and observation of rabbit behaviour in evaluation of subarachnoid neurotoxicity of metrizamide. 甲咪唑胺蛛网膜下腔神经毒性评价的脑电图与家兔行为观察比较。

Acta radiologica: diagnosis Pub Date : 1986-03-01 DOI: 10.1177/028418518602700219

P Maly, D Elmqvist, T Almén, K Golman

引用次数: 9