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Biomedical subjects

M Breitenseher

Publications and source records attributed to M Breitenseher.

76 records · Page 5Linked to original sources
PubMed1992

[Renal osteodystrophy: the spectrum of the x-ray symptoms in modern forms of kidney transplantation and long-term dialysis therapy].

Plain film radiography and microradioscopy represent standard imaging for diagnosis and grading of renal osteodystrophy. The aim of this retrospective study was to evaluate the effects of modern therapeutic regimens on skeletal abnormalities as diagnosed radiographically. 198 patients were investigated. X-ray findings of 38 patients from 1981-1983 (16-66 years, 40.1 +/- 13.4; 23 male, 15 female) were compared with those of 160 patients from 1991 (20-71 years, 48.4 +/- 12.5; 98 male, 62 female). We found significant differences in respect of the spectrum and the degree of skeletal abnormalities. The prevalence of phalangeal resorptions lowered from 87 to 50%, the prevalence of soft tissue calcification from 68 to 57%. Therefore, renal osteodystrophy is not as extensive as it was ten years ago, but it still continues to be an unavoidable complication of renal insufficiency.

Adolescent↗
PubMedDate not supplied

Dental MR tomography of the mandible.

Imaging of the jaw bones is routinely achieved by conventional X-ray tomography or CT. In this study a new imaging procedure (dental MR tomography) is introduced. Five subjects were positioned in the standard neck coil of a 1.0 T MR scanner, and T1- and T2-weighted imaging of the mandible was performed in the axial plane. After the examination, the data were reconstructed as panorama and cross-sectional images using a software package for dental imaging on a workstation. The neurovascular bundle within the mandibular canal (MC), its relation to the teeth, and the pulp chambers of the teeth were demonstrated excellently in all cases. Edema and reactive hypervascularization due to an inflammatory process were also well visible. Dental MR tomography could become a good alternative to X-ray-based imaging modalities of the jaw bones by additionally offering the advantage of directly imaging the neurovascular bundle within the MC. Furthermore, administration of contrast agent for differentiation of pathological alterations is possible.

Adult↗
PubMedDate not supplied

Atypical appearance of elastofibroma dorsi on MRI: case reports and review of the literature.

Three patients with histologically proven elastofibroma dorsi underwent MRI, using T1-weighted, T2-weighted, STIR (short inversion time inversion recovery), and contrast-enhanced SE sequences. All lesions typically displayed low signal intensity masses interspersed with areas of high signal intensity on T1- and T2-weighted SE images. Contrary to prior reports, two patients showed marked enhancement of the mass after administration of Gd-DTPA. Although the characteristic signal intensity on conventional T1- and T2-weighted images may lead to the early diagnosis of this rare tumor, radiologists should be aware that marked contrast enhancement may be representative in elastofibroma dorsi.

Female↗