Publications by authors named "Pokieser H"

From special care following surgery and from artificial respiration of polio patients the modern and very special intensive medical care has developed. At the same time the provisional "bedside radiology" was improved to one branch of clinical radiology with special organisation and methods of investigation. Importance and urgency of radiological information are requiring close cooperation of all medical branches.

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Contemporary methods and risks of intravenous urography in the evaluation of chronic renal failure, are discussed. Differential diagnosis of "small" as well als of "large" kidneys is presented by analysing the contour of the organs and the configuration of the collecting systems. Illustrative cases are shown.

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The accuracy of ultrasonography in the diagnosis of different pathological renal conditions is evaluated. Correlations were established to the findings on intravenous urography and selective angiography. Ultrasonography is suitable for the determination of the exact size and site of the kidney and, therefore, should be used routinely in the follow-up of renal transplant recipients.

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The results of radiological and endoscopic examination in 1,030 patients were compared. In one third of cases there was some discrepancy relating to a significant diagnostic finding (malignant process, peptic ulcer, polyp, stenosis or deformity, abnormal folds, diverticula or normal findings). In analysing false negative and false positive radiological diagnoses, the patients were divided into two groups (with or without a double contrast technique).

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The value of sonography of the liver is assessed and compared with angiography and scintigraphy on the basis of case material from 102 patients, representing localized and diffuse liver processes. The diagnostic accuracy depends on the characteristic acoustic impedance differences in the examined tissue. Diffuse liver disease and processes without clearly defined acoustic borderlines may cause diagnostic difficulties and differentiation can only be attempted by additional clinical information.

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On 77 IVP's it can be shown that correct assessment of the identity of space-occupying lesions of the kidneys is difficult (correct diagnosis in 39% of cystic and 10% of solid conditions). Improvement can be expected from early tomography of IVP's by improved pictures of the parenchyma, mainly with ultra-sound which separates cystic from solid conditions. Correlation of these techniques appears sufficient for cystic processes.

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The effectiveness of scintigraphy, sonography and angiography is compared in a material of 140 cases of circumscribed disease of the liver. Typical clinical starting points are defined as points of reference of the diagnostic techniques. Clinical diagnosis is very safe in cases of secondary blastoma and hepatocellular carcinoma of the liver.

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Following the discussion on special clinical issues with respect to patients in surgical and internal intensive care wards, technology and special methods used in conventional thorax and abdominal X-rays are elaborated on. The wide range of information obtained through large spectrum abdominal X-rays taken in the ventrodorsal direction with the patient lying on the left side is stressed. Small quantities of free air are visualized better in this position than in the upright one.

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The combined use of selective angiography, scintigraphy and ultra-sound is not reliable enough for the certain exclusion of visceral involvement in Hodgkin's disease. Since this is of importance in the planning of treatment, it confirms the recommendation made by Wagenknechts, Glatsteins and others that a diagnostic splenectomy be carried out in order to determine the presence of visceral involvement.

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The authors have seen 14 cases of idiopathic, hypertrophic, subaortic stenosis and they describe the pathology, the clinical and radiological diagnosis and the differential diagnosis of this condition. Their own findings are compared with those in the literature and substantial agreement is found. Some uncharacteristic clinical and radiological findings are associated with typical pressure curves in the left ventricle and marked abnormalities in the laevocardiogram.

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