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Biomedical subjects

W A Fuchs

Publications and source records attributed to W A Fuchs.

At least 73 records · Page 4Linked to original sources
PubMed1981

Computerized tomography versus angiography in the staging of malignant renal neoplasm.

A comparative diagnostic study was carried out on 40 patients with pathologically proven renal malignancies which were staged both by angiography and CT. CT is more accurate than angiography for the detection of both perirenal and pararenal extension of the primary tumour (T-staging), and angiography is only slightly superior to CT in the evaluation of intravascular extension of the malignancy. The diagnostic performance of CT is clearly superior to angiography in detecting malignant lymphatic spread (L-staging) and distant metastases (M-staging). CT is, therefore, becoming the primary diagnostic approach for the staging of renal malignant tumours.

Adolescent↗
PubMed1981

[Computed tomography of the mediastinum (author's transl)].

In a review study, the diagnostic possibilities of modern CT apparatus with scanning times of some seconds were demonstrated. The two main advantages-1) imaging of axial body sections without superimposition and 2) the high resolution of tissue densities-guarantee on the one hand possibility of diagnosis and three dimensional localization of tumors not afforded by conventional radiographic methods, and on the other hand definite qualitative analysis of different disease patterns. This results primarily in precise clarification of both neoplastic and inflammatory mediastinal masses, secondly provides a non-invasive route of investigation of lipomatous and vascular processes, which however still require angiography before surgery. CT appearances of important clinical disease patterns were summarized.

Abscess↗
PubMed1981

[Sonography of vascular and biliary epigastric structures].

Ultrasonic devices with rapid image build-up and high power of resolution enable detailed assessment of the vascular and biliary structures. Visualisation of the biliary tract of normal lumen in the extrahepatic region enables identification of a biliary obstruction at a time where dilatation of the intrahepatic biliary tract has not yet taken place. The identification of small visceral branches of the aorta abdominalis as well as of portal and systemic veins yields sonographically reliable vascular points of reference which enable, apart from the exact localisation of the biliary tract and of the pancreas, accurate topographic identification of abdominal mass lesions.

Bile Ducts↗
PubMed1981

[Thoracic computer tomography in malignant Hodgkin lymphoma].

A retrospective study of 65 histologically proven lymphoma patients evaluated the staging capabilities of CT in Hodgkin's disease. Nodal and extranodal tumor manifestations were detected in the mediastinum (89%), thoracic bones (23%), pleura (26%), periphery of the lung, and in 14% as an infiltrating thoracic well lesion. Advantages and disadvantages of the method are discussed.

Adolescent↗
PubMed1980

[Computer tomography in the investigation of the suprarenal gland (author's transl)].

The computer tomographic appearances of pathological processes in the suprarenal were evaluated in 55 patients; consideration is given to individual normal variations and to various sources of error. It is concluded that adrenal computer tomography is the primary radiological means of diagnosis, particularly for diseases which deform the contours of the glands. Usually angiography is unnecessary. The structure and density of various adrenal masses, and their behaviour after intravenous contrast, usually provide a fairly accurate diagnosis. Nevertheless, exact evaluation of the findings can only be made in the clinical context and decisions regarding treatment should be the result of an interdisciplinary approach.

Adrenal Gland Neoplasms↗
PubMed1980

[The radiological diagnosis of acute intestinal ischaemia (author's transl)].

Angiography was carried out in 27 patients with acute intestinal ischaemia. In 23 patients a primary, and in four a secondary vascular cause was found. Plain films are of little value in the early diagnosis of mesenteric infarcts, since radiologically demonstrable changes first develop after 10 to 12 hours following the incident. A definitive early diagnosis of an acute mesenteric infarct can only be made by angiography. Surgical intervention for proximal mesenteric artery occlusion is only likely to be successful if carried out within 10 hours. 80% of six patients with major occlusions and five with angiospastic mesenteric insufficiency died. One out of three embolectomies was successful. Amongst seven patients with occlusions of jejunal and ileal branches, just over half died; three out of four embolectomies were successful. Five patients with ileal occlusions survived.

Acute Disease↗
PubMed1980

[The computer tomographic diagnosis of echinococcosis (author's transl)].

The computer tomographic appearances and differential diagnosis in 22 patients with echinococcosis are described; of these, twelve were of the cystic and ten of the alveolar type. The computer tomographic appearances are characterised by the presence of daughter cysts (66%) within the sharply demarkated parasitic cyst of water density. In the absence of daughter cysts, a definite aetiological diagnosis cannot be made, although there is a tendency to calcification of the occasionally multiple echinococcus cysts. The computer tomographic appearances of advanced alveolar echinococcosis are characterised by partial collequative necrosis, with calcification around the necrotic areas (90%). The absence of CT evidence of partial necrosis and calcification of the pseudotumour makes it difficult to establish a specific diagnosis. The conclusive and non-invasive character of the procedure and its reproducability makes computer tomography the method of choice for the diagnosis and follow-up of echinococcosis.

Adolescent↗
PubMed1979

[Computer tomography in acute pancreatitis (author's transl)].

The computer tomographic appearances of acute pancreatitis have been analysed 33 patients. It is usually a simple matter to distinguish between the acute, oedematous pancreatitis, which can be treated conservatively, and the suppurative pancreatitis with haemorrhagic and necrotising features, which require surgical exploration.

Absorptiometry, Photon↗
PubMed1979

[Computer tomography following blunt abdominal trauma (author's transl)].

The computer tomographic appearances of lesions of parenchymatous organs following blunt abdominal trauma are described in 13 patients (five liver, four renal, two splenic and two pancreatic injuries). The value of abdominal computer tomography is discussed in relation to the interval between injury and time of abdominal examination and compared with the diagnostic value of abdominal angiography.

Abdominal Injuries↗
PubMed1979

Pain in peripheral arteriography-a comparison of a low osmolality contrast medium with a conventional compound.

The pain reaction to a new low osmolality contrast agent, sodium-methyl-glucamine-ioxaglate, in comparison to the conventional compound methylglucamine-ioxitalamate was tested and statistically evaluated in 12 patients using the visual analogue scale method. The intensity of pain experienced was significantly smaller following intra-arterial injection of the compound of low osmolality as compared to the conventional contrast agent.

Adult↗