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Aktuelle Radiologie最新文献

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[Right-sided double inferior vena cava and common iliac vein: imaging with spiral computerized tomography]. [右侧双下腔静脉和髂总静脉:螺旋计算机断层成像]。
Aktuelle Radiologie Pub Date : 1998-05-01
D R Meyer, R Andresen, M Friedrich
{"title":"[Right-sided double inferior vena cava and common iliac vein: imaging with spiral computerized tomography].","authors":"D R Meyer,&nbsp;R Andresen,&nbsp;M Friedrich","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Duplications of the inferior vena cava (IVC) are rare variants of the abdominal vessels and are normally located on both sides of the abdominal aorta. The rare case of a rightsided infrarenal duplication of the IVC with involvement of the common iliac vein is reported. Details of the embryology are presented for the understanding of this IVC variant. The spiral CT with multiplanar reconstructions makes it possible to define the vascular morphology and to differentiate it from lymphoma.</p>","PeriodicalId":76986,"journal":{"name":"Aktuelle Radiologie","volume":"8 3","pages":"148-50"},"PeriodicalIF":0.0,"publicationDate":"1998-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20563494","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: 0
[Endosteal hyperostosis--differential diagnosis and possible therapeutic outlook]. 【内膜肥大症——鉴别诊断和可能的治疗前景】。
Aktuelle Radiologie Pub Date : 1998-05-01
C Prym, R Mass, E Bücheler
{"title":"[Endosteal hyperostosis--differential diagnosis and possible therapeutic outlook].","authors":"C Prym,&nbsp;R Mass,&nbsp;E Bücheler","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>A case report on a 42-year old man with an osteosclerotic bone disorder is presented. Physical examination and radiological findings are in favour of endosteal hyperostosis. Differential diagnoses are discussed.</p>","PeriodicalId":76986,"journal":{"name":"Aktuelle Radiologie","volume":"8 3","pages":"142-4"},"PeriodicalIF":0.0,"publicationDate":"1998-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20563492","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: 0
[Comparison of film-screen combinations in contrast-detail diagram and with interactive image analysis. 3: Trimodal histograms of gray scale distribution in bar groups of lead pattern images]. [对比细节图和交互式图像分析的电影-屏幕组合对比。]3:引线图案图像柱状组灰度分布的三模态直方图。
Aktuelle Radiologie Pub Date : 1998-05-01
G Hagemann, G Eichbaum, G Stamm
{"title":"[Comparison of film-screen combinations in contrast-detail diagram and with interactive image analysis. 3: Trimodal histograms of gray scale distribution in bar groups of lead pattern images].","authors":"G Hagemann,&nbsp;G Eichbaum,&nbsp;G Stamm","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The following four screen film combinations were compared: a) a combination of anticrossover film and UV-light emitting screens, b) a combination of blue-light emitting screens and film and c) two conventional green fluorescing screen film combinations. Radiographs of a specially designed plexiglass phantom (0.2 x 0.2 x 0.12 m3) with bar patterns of lead and plaster and of air, respectively were obtained using the following parameters: 12 pulse generator, 0.6 mm focus size, 4.7 mm aluminum prefilter, a grid with 40 lines/cm (12:1) and a focus-detector distance of 1.15 m. Image analysis was performed using an Ibas system and a Zeiss Kontron computer. Display conditions were the following: display distance 0.12 m, a vario film objective 35/70 (Zeiss), a video camera tube with a PbO photocathode, 625 lines (Siemens Heimann), an Ibas image matrix of 512 x 512 pixels with a spatial resolution of ca. 7 cycles/mm, the projected matrix area was 5000 micron 2. Maxima in the histograms of a grouped bar pattern were estimated as mean values from the bar and gap regions (\"mean value method\"). They were used to calculate signal contrast, standard deviations of the means and scatter fraction. Comparing the histograms with respect to spatial resolution and kV setting a clear advantage of the UVR system becomes obvious. The quantitative analysis yielded a maximum spatial resolution of approx. 3 cycles/mm for the UVR system at 60 kV which decreased to half of this value at 117 kV caused by the increasing influence of scattered radiation. A ranking of screen-film systems with respect to image quality and dose requirement is presented. For its evaluation an interactive image analysis using the mean value method was found to be superior to signal/noise ratio measurements and visual analysis in respect to diagnostic relevance and saving of time.</p>","PeriodicalId":76986,"journal":{"name":"Aktuelle Radiologie","volume":"8 3","pages":"151-6"},"PeriodicalIF":0.0,"publicationDate":"1998-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20563495","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: 0
[Symptomatic heterotopic splenic tissue in the adrenal gland area]. [肾上腺区症状性脾组织异位]。
Aktuelle Radiologie Pub Date : 1998-05-01
J Heider, P Winter, B Kreft
{"title":"[Symptomatic heterotopic splenic tissue in the adrenal gland area].","authors":"J Heider,&nbsp;P Winter,&nbsp;B Kreft","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>We report on a 33-year-old man with symptomatic heterotopic suprarenal splenic tissue. Heterotopic splenic tissue can often be found after posttraumatic splenectomy. It is a result of autotransplantation induced by trauma (splenosis). Additionally it can grow during embryogenic development. Such an accessory spleen is found in 10-44% of all autopsies. In this case report the patient was treated by resection due to increasing flank pain and suspected neoplasm.</p>","PeriodicalId":76986,"journal":{"name":"Aktuelle Radiologie","volume":"8 3","pages":"135-7"},"PeriodicalIF":0.0,"publicationDate":"1998-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20563490","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: 0
[Roentgen diagnosis without medical indications and physical injury. Verdict of the federal court 3 December 1997--2 StR 397/97]. [无医学指征和身体损伤的伦琴诊断。联邦法院判决(1997年12月3日-2 StR 397/97)。
Aktuelle Radiologie Pub Date : 1998-05-01
M Vogel, H Vogel
{"title":"[Roentgen diagnosis without medical indications and physical injury. Verdict of the federal court 3 December 1997--2 StR 397/97].","authors":"M Vogel,&nbsp;H Vogel","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>An orthopedist had been sentenced for different offenses to two years and six months imprisonment by the Landgericht Frankfurt (superior court). One point of the ruling had been the evaluation of the use of X-ray methods without medical indication, which the Landgericht Frankfurt/Main (superior court) finally did not evaluate as bodily harm. The Bundesgerichtshof (supreme court) of Germany overruled this interpretation and referred the case back for new trial and ruling.</p>","PeriodicalId":76986,"journal":{"name":"Aktuelle Radiologie","volume":"8 3","pages":"157-8"},"PeriodicalIF":0.0,"publicationDate":"1998-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20563496","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: 0
[Emphysematous pyelonephritis]. (气性肾盂肾炎)。
Aktuelle Radiologie Pub Date : 1998-05-01
A Heinze, K Migeod
{"title":"[Emphysematous pyelonephritis].","authors":"A Heinze,&nbsp;K Migeod","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Emphysematous pyelonephritisis a relatively rare, gas-producing, destructive and usually unilateral renal infection. Often the patients are female diabetics and mostly the left kidney is affected. The pathological gas formation is either limited to the kidney or extends to the perirenal space. Two cases are reported, which-in clinical presentation, extension of pathological gas, and treatment-present two possible ends of the spectrum of this disease.</p>","PeriodicalId":76986,"journal":{"name":"Aktuelle Radiologie","volume":"8 3","pages":"138-41"},"PeriodicalIF":0.0,"publicationDate":"1998-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20563491","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: 0
[Primary non-Hodgkin lymphoma of the ovary]. [原发性卵巢非霍奇金淋巴瘤]。
Aktuelle Radiologie Pub Date : 1998-05-01
N Morakkabati, D Dumont-Dos-Santoz, A Glasmacher, B Kreft
{"title":"[Primary non-Hodgkin lymphoma of the ovary].","authors":"N Morakkabati,&nbsp;D Dumont-Dos-Santoz,&nbsp;A Glasmacher,&nbsp;B Kreft","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>A young female patient was admitted for clarification of a space-occupying ovarian situation. Histological analysis gave the finding of a highly malignant NHL of the Burkitt type. In the further course of the disease bicytopenia developed. Bone mark analysis revealed a B-AII. FAB L3 which can be considered as the leukemic equivalent of the Burkitt lymphoma. In spite of chemotherapy the patient died as a consequence of a sepsis.</p>","PeriodicalId":76986,"journal":{"name":"Aktuelle Radiologie","volume":"8 3","pages":"145-7"},"PeriodicalIF":0.0,"publicationDate":"1998-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20563493","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: 0
[Liver tumors in children: spiral CT findings and differential diagnostic classification]. [儿童肝脏肿瘤:螺旋CT表现及鉴别诊断分类]。
Aktuelle Radiologie Pub Date : 1998-05-01
C Herzberg, R Maas, E Bücheler
{"title":"[Liver tumors in children: spiral CT findings and differential diagnostic classification].","authors":"C Herzberg,&nbsp;R Maas,&nbsp;E Bücheler","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Liver tumors in childhood are rare. They can be subdivided in benign or primary and secondary malignant liver tumors. The prognosis of malignant liver disease has improved due to extended therapy in the past few years. Thus, diagnosis of liver tumors in childhood gains in significance. After a suspect ultrasound diagnosis, usually computed tomography (CT) is used as a radiologic sectioning method. Guided by a retrospective analysis of 15 cases, the importance of the Helical-CT is presented. Helical-CT is a good diagnostic method for pediatric cases due to reduced scan times. By the basis of clinical data, distribution, and density, various differential diagnoses can be made. Benign liver tumors, especially cysts and frequently haemangioma, can easily be diagnosed and controlled because of their typical echogenicity and contrast visualisation. In cases of hamartoma, focal nodal hyperplasia, and adenoma computed tomography diagnosis is often necessary. Primary malignant liver tumors can prove to be unilocular hepatoblastomas or hepatocellular carcinomas, while disseminated liver invasions usually are considered as metastatic liver tumors of kidney or adrenal cancer.</p>","PeriodicalId":76986,"journal":{"name":"Aktuelle Radiologie","volume":"8 3","pages":"109-13"},"PeriodicalIF":0.0,"publicationDate":"1998-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20563683","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: 0
[Calculating the effective dose of occupationally exposed persons in roentgen diagnosis]. [职业暴露者有效剂量的计算]。
Aktuelle Radiologie Pub Date : 1998-05-01
K Ewen, S Westphalen
{"title":"[Calculating the effective dose of occupationally exposed persons in roentgen diagnosis].","authors":"K Ewen,&nbsp;S Westphalen","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The radiation exposure of occupationally exposed staff was measured at tube voltages of 50, 80 and 100 kV. A typical arrangement for fluoroscopic examinations was chosen: the (standing) physician is exposed by the scattered radiation from a (lying) patient. The physician is represented by an Alderson-Rando-Phantom and a spherical phantom similar to an ICRU sphere. Measurements of the partial body dose were performed by film dosimetry in the Alderson-Rando-Phantom in a.p. and in lateral direction of the scattered radiation respectively. From these measurements the effective dose was calculated. The ambient equivalent dose H* (10) in the sphere phantom was determined by the same method. The latter results yield the conversion factor g, which describes the ratio effective dose E to ambient equivalent dose H* (10). A conversion factor of g = 0.3 was established by averaging over the tube voltage and the direction of the scattered radiation. Based on the guidelines 96/29/Euratom and the transition from old to new dose quantities a reduction of the dose limits for occupationally exposed persons by a factor of up to 3.75 will be necessary. Applying the conversion factors can almost compensate that reduction.</p>","PeriodicalId":76986,"journal":{"name":"Aktuelle Radiologie","volume":"8 3","pages":"125-30"},"PeriodicalIF":0.0,"publicationDate":"1998-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20563488","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: 0
[Cavitating lung lesions in the course of ANCA-associated vasculitis: differential diagnostic aspects]. 【anca相关性血管炎过程中的肺空化病变:鉴别诊断】。
Aktuelle Radiologie Pub Date : 1998-05-01
J Kirchner, H P Raab, F Länger, R Wigand, P Mitrou, V Jacobi
{"title":"[Cavitating lung lesions in the course of ANCA-associated vasculitis: differential diagnostic aspects].","authors":"J Kirchner,&nbsp;H P Raab,&nbsp;F Länger,&nbsp;R Wigand,&nbsp;P Mitrou,&nbsp;V Jacobi","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Antineutrophil cytoplasmatic antibodies (ANCA)-associated vasculitides (Wegener's granulomatosis, microscopic polyangiitis, Churg-Strauss syndrome) show quite variable courses. Clinical features of the full blown generalized systemic vasculitis are usually found in the respiratory tract and the kidney. Pulmonary involvement of Wegener's granulomatosis shows commonly nodules and cavitations but also diffuse alveolar hemorrhage. We report the case of a 57 year-old man suffering from dyspnea, thoracal pain, arthralgia, purpura, scleritis and tinitus. Specimen of the kidney showed segmental glomerulosclerosis and tubulointerstitial nephritis. Because of the presence of cANCA Wegener's disease was assumed. Pulmonary infiltrates developed under immunosuppressive treatment with cyclophosphamid. As differential diagnosis of the pulmonary infiltrates, we considered invasive pulmonary aspergillosis as well as infiltrates due to Wegener's granulomatosis. In spite of maximal therapeutic management of patient died of respiratory and cardiovascular failure. The findings at autopsy showed distinct invasive pulmonary aspergillosis and perifocal hemorrhage.</p>","PeriodicalId":76986,"journal":{"name":"Aktuelle Radiologie","volume":"8 3","pages":"114-8"},"PeriodicalIF":0.0,"publicationDate":"1998-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20563684","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: 0
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