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Biomedical subjects

M Urban

Publications and source records attributed to M Urban.

At least 163 records · Page 9Linked to original sources
PubMed1985

Indoor and outdoor natural radiation survey programmes aspects of instrumentation and organisation, results.

In the last two decades many countries started national or regional surveys to assess the average exposure to natural radiation of the general public. Survey programmes for external radiation as well as for radon and decay products have been performed are still in progress or will be started in the near future. The paper discusses briefly technical and organisational aspects of survey measurements as well as practical experiences and results available from national or regional survey programmes.

Climate↗
PubMed1985

[Pre- and postoperative diagnosis of an aortic aneurysm by dynamic computed tomography with omission of angiography].

A study which was prospective with regard to the method, showed 41 cases of aortic aneurysms in a collective of 3597 body-CT-examinations (1.14%). By means of CT and its possibility of reconstruction all morphological details of an aneurysm become visible. The course of the vessels to the bowel and to the kidneys are shown with the same excellence as in angiography. However, additional information which angiography cannot supply, is also given, like non-perfused lumen, changed wall structure and perivascular changes. Measurement of flow can be performed in the vessel and in the organ, the arterial supply of which is involved in aneurysmatic disease. The method is non-invasive. This is important for control after operation. Morphological changes of the vessel prosthesis are detected, as well as bleeding and infection. Functional parameters are determined semiquantitatively.

Adult↗
PubMed1985

[Venous diagnosis using duplex sonography].

Duplex sonography is an excellent alternative in sonographically accessible regions of the venous system if i.v. administration of contrast media for opacification is not possible for technical reasons or because of medical contraindications.

Adult↗