[en] The textbook is arranged in two parts presenting general or therapy-specific information. The first part covers general aspects such as information of the patient, the radiation exposure involved in a given therapy, risks of infection and the accompanying drug therapy. The second part is arranged in three chapters dealing with: non-vascular interventions, arterial interventions, and interventions in veins. The relevant information explains techniques and their applications, giving hints as to pitfalls, possible complications and their management; all indications of specific types of interventional radiology, ranging from needle biopsy and drainage through to interventions in arteries and veins, placement of stents, and interventions in the lacrimal canal. (orig./CB)

No abstract available

[en] Published in summary form only

[en] Published in summary form only

[en] Objective: Ranking of the diagnostic reliability of 2 mammographic film/screen combinations, Kodak MIN R-DH and Kodak MIN-R 2000, with different density curve steepness. Materials and methods: 100 patients undergoing mammography twice within twelve months, showing no change of findings. For each patient, one and the same breast was scanned using two different film/screen combinations. The criteria for diagnostic value ranking of the two films by two experienced radiologists were: Contrast, image sharpness, visualisation of skin line (at the film viewer and under bright light), noise, transparency, and density of the glandular parenchyma. Results: The quality ranking of both film/screen systems was from good to excellent. Almost fully identical achievements were stated with respect to contrast, sharpness, noise, transparency, density of glandular parenchyma, and visualisation of skin line under bright light. The capability of the Kodak MIN-R 2000 film with respect to visualisation of the skin line at the film viewer was found to be one factor below that of the other film. (orig./MG)

[en] The case of a 44-year old woman suffering from amblyopia on the left eye with unilateral proptosis caused by axial (progressive) myopia is presented. The clinical and radiological findings were discussed in reference to the literature. The diagnosis was established by ruling out neoplastic, inflammatory or endocrine causes for the exophtalmos. CT and MR scans revealed an enlarged left globe without evidence of orbital masses. The findings were regarded as typical for the diagnosis at axial myopia. (orig.)

[en] The conclusion drawn from the study reported is that the current state of insight in the clinical applicability and achievements of diffusion-weighted techniques is inadequate, but it can be safely expected that diffusion weighting will become an important tool for diagnostic radiology. (orig./CB)

[en] The positron computed tomography yields diagnostic data on, e.g., the localisation and metabolic conditions of focal hepatic lesions. It is expected to become a decisively useful tool for improved diagnosis of various liver diseases. Comparative analyses with other diagnostic means have shown the advances recently achieved. (orig.)

[en] Ten patients unterwent double-helical CT of a portion of the base of the skull. In each case, 5-mm and 10-mm fused slices were obtained. The patency of the visualized vessels was then documented using contrast-enhanced images. Results: The differences in attentuation between the 5-mm and 10-mm fused slices obtained at native examinations were a median 11 HU. Subsequent contrast enhanced studies documented patency of the examined vessels. Conclusion: The present data show that the hyperdense basilar artery as a sign of thrombotic occlusion is not valid when thin, fused slices are obtained at double-helical CT. (orig.)

[en] 22 patients with space occupying lesions in the thoracal region were investigated by computer tomography and by perfusion scintigraphy using SPECT. In order to evaluate the CT images quantitatively, the lung volume was determined using approximation method and compared with the perfusion in the SPECT study. For this, anatomically equivalent transaxial SPECT slices had been coordinated to the CT slices. Between the determined lung volumes and the activity in the ocrresponding layers, a statistically significant correlation was found. It could be shown that the stronger perfusion, frequently observed at the right side of the healthy lung, may be explained by an higher volume of the right pulmonary lobe. Whereas in benign displacing processes the relation activity to volume was similar to the one of the healthy lung, a strongly reduced perfusion together with inconspicuous lung volumes became apparent with malignant tumors. In addition to the great morphological evidence of CT and SPECT studies, additional informations regarding the dignity of displacing processes may be derived from the quantitative evaluation of both methods. (orig.)