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Biomedical subjects

W Reisinger

Publications and source records attributed to W Reisinger.

At least 37 records · Page 2Linked to original sources

[Value of negative oral contrast media in MR cholangiopancreatography (MRCP)].

PURPOSE: Evaluation of the use of a negative oral contrast material in MR cholangiopancreatography (MRCP). MATERIAL AND METHODS: We performed MRCP in single-shot technique (TSE, TR = 2800 ms, TE = 1100 ms, ETL = 64) in 38 patients before and 20-30 min after oral administration of 300-600 ml of a negative oral contrast material. The visualization ducts and details important for the diagnosis was evaluated in a blinded manner. Ductal diameters were measured. Both sets of images were evaluated qualitatively. RESULTS: The ductal diameters did not change after administration of oral contrast material. In 1/3 of all cases the ductal structures were superimposed by a high signal intensity of fluid in the gastrointestinal tract, especially in the tail of the pancreas. After administration of oral contrast material only in 3 patients could a complete visualization of the ducts not be achieved. In 5 cases, details relevant for the diagnostic decision could be seen only on post-contrast images. The anatomic orientation was not compromised by the absence of signal in the gastrointestinal tract. CONCLUSION: Negative oral contrast material should be given before performing a MRCP to provide non-superimposed visualization of the bile and pancreatic ducts. There is no negative influence of the oral contrast material on the diameter of the ducts.

Administration, Oral↗

[Bone density of spongiosa and cortical bone of the lumbar spine. Relations to sex, age and spinal deformities in a regional collective of the European Study of Vertebral Osteoporosis (EVOS)].

BACKGROUND AND METHOD: In an additional bone density measurement protocol to the European Vertebral Osteoporosis Study (EVOS) separate spongious and cortical density measurements (sQCT) were carried out at the first 3 lumbar vertebrae in 293 volunteers (92 men and 201 women) in 3 Berlin regional centers. RESULTS: The spongious mineral density decreases from proximal to distal (L1 to L3), the cortical density increases from proximal to distal, mainly in men. Men showed no significant decrease of cortical density and a lower decrease of spongious density with age compared to women. A comparison of bone mineral density with vertebral height indices of McCloskey/Kanis, Eastell/Melton and Felsenberg showed significant differences of spongious density between a group with normal vertebral height and a group with at least one pathologically degraded vertebra. Individuals with osteoporosis according to the WHO-definition showed a higher prevalence of vertebral deformities. No significant loss of cortical density was observed in these people.

Age Factors↗

[Current musculoskeletal symptoms in peri and postmenopausal women: results of a multicenter population epidemiological study. The EVOS Study Group].

Within the European vertebral osteoporosis study four stratified systematic samples of German residents aged 50-79 in Lübeck, Heidelberg, Jena and East Berlin have been drawn. Overall 4628 subjects were included, of whom 4385 were contactable and 3106 (71%) responded to the postal questionnaire enquiring about rheumatic complaints "today". 2348 (54%) followed an invitation to a medical examination in which a specific gynaecological history was taken. The prevalence of current back-, neck- and joint-pain is consistently higher in females than in males in all age groups. Females show a peak prevalence in the age group 55-64. 104/1134 women were pre- or perimenopausal. 1030 women had not had their period for at least 13 months and were classified as "postmenopausal". Neither the menopausal status nor the duration of the postmenopause were statistically significantly associated with the frequency of the three rheumatic complaints.

Aged↗

[Air or methylcellulose as a double contrast medium in x-ray studies of the small intestine?].

The value of enteroclysma in comparison to peroral roentgenologic imaging of the small bowel is beyond doubt. For the use of applicable double contrast media we carried out comparative investigations in 118 patients with inflammable diseases of the small bowel. 92 patients were investigated with air and 26 with 1% methylcellulose solution in double contrast. Advantages and shortcomings of both methods are discussed. For the diagnostic results as well as for the application of complementing techniques air seems to be better for double contrast studies than methylcellulose.

Air↗

[Endoscopic-radiologic diagnosis and therapy of the bile ducts. Results of endoscopic papillotomy].

Endoscopic-radiologic methods for demonstrating the hepatobiliary and pancreatic ducts are an integrated part of the diagnostic spectrum of gastroenterologic centers. At the Charité since 1975 we have made more than 5,500 endoscopic-retrograde cholangio-pancreaticographies (ERCP's). This method provides immediately or later an adequate therapy as an alternative to the otherwise necessary surgery. The most frequently used and basic method is endoscopic papillotomy (EPT). In most cases it precedes endoscopic removal of concrements, prosthetic drainage of biliary pathways or extracorporal shockwave lithotripsy (ESWL). Since 1977 we have carried out 2,050 EPT's at the Charité, more than 60% of these for patients of higher age (above 60). With 98.3% successful interventions complications were seen in only 4.7% of the cases. The influence of close interdisciplinary cooperation of endoscopicists and radiologists on the results of the investigation and the rate of complications is discussed.

Adult↗

[Fluorescence microscopic demonstration of eosinophile leucocytes with different fluorochromes (author's transl)].

A screening program involving blood from men and horse resulted in about 80 fluorochromes admitting microscopic differentiation of eosinophile leucocytes (properly their granules) in blood smears. Fluorescence distinguishes either selective, i. e. only eosinophile cells show fluorescence, or specific, that means, eosinophilic granules exhibit fluorescence differing from non-eosinophilic cells by colour and/or intensity.

Animals↗