PubMed Health⌕ Search

Biomedical subjects

D Schopp

Publications and source records attributed to D Schopp.

8 recordsLinked to original sources
PubMed1992

[Imaging in isolated pulmonary immunocytoma].

A extranodal pulmonary immunocytoma that originated from the lung is reported. It was hidden behind the picture of a mid-lobe syndrome at repeated imaging controls over a 1.5-year period. In the further course a local progression occurred displayed by roentgenography and computer tomography including calcifications within the pulmonary tumor. A newly developing monoclonal gammopathy was detected by immunoelectrophoresis at the same time. Bronchopulmonary symptoms due to the tumor did not exist. After local resection of the lymphoma monoclonal gammopathy disappeared. However, a recurrence of monoclonal gammopathy developed after eight months.

Biopsy↗
PubMed1991

[The visualization of heart wall motion using MR-interferography].

MR interferography provides a method for noninvasive measurement of heart wall motion. An interferographic pattern is projected on short axis views of the left ventricle, characterising local motion of the myocardium. In contrast to tagging methods, interferography images the direction and velocity of local wall motion at the moment of acquisition directly. Ten healthy volunteers and 8 patients with myocardial infarction were studied. Contraction, relaxation velocity of the ventricular wall, and rotation (twist) of the left ventricle were recorded. Myocardial scars were identified by abnormal pattern of segmental wall motion. MR interferography represents a promising tool for assessment of the transmural distribution of thickening and of other components of motion within the wall.

Adult↗
PubMed1990

Diagnostic imaging in metastatic lung disease.

Chest radiographs, full lung tomography and computed tomography of the chest provide increasing sensitivity for evaluation of pulmonary metastases. Pulmonary nodules of 5-10 mm diameter are detectable with increasing frequency by use of high kilovoltage chest radiographs. Full lung linear tomography provides an overall accuracy of 72-97% in diagnosis of pulmonary nodules. Chest CT delineates pulmonary nodules as small as 3 mm within 10 mm slice sections. However, as sensitivity increases, specificity diminishes in identifying metastatic nodules. Sensitivity in CT is also reduced by false negative findings due to unequal respiratory cycles. Comparative radiologic-pathologic evaluation of nodule detection proved CT to be the most sensitive screening method for pulmonary metastases. Timing of follow-up studies for pulmonary nodule detection in cancer patients can be determined by tumor growth kinetics; 3-6 month intervals proved to be useful.

Humans↗
PubMed1989

[Aggressive abdominal fibromatosis: the place of diagnostic imaging].

Aggressive fibromatoses are locally invasive, non-metastasising, fibroblastic soft-tissue tumours. On the basis of examinations made in 6 patients with histologically confirmed diagnosis, the reliability of different imaging modalities in preoperative diagnosis and in follow-up is discussed. The inhomogeneous tumour composition was evident in all imaging procedures. Computed tomography offered the highest sensitivity for tumour detection and proved accurate in demonstrating the characteristic radial tumour spreading of mesenteric aggressive fibromatosis; the attenuation values ranged from 18 to 58 HU. in pre-contrast CT scans. In magnetic resonance imaging the tumours mostly produced a low signal in T1- and T2-weighted sequences; the calculated T2-relaxation times ranged from 97 to 186 ms.

Abdominal Muscles↗
PubMed1989

[Current diagnosis of dissecting aortic aneurysm].

The prerequisites for proper treatment of a dissecting aneurysm are for the diagnosis to be established quickly and for the location and extent to be identified precisely. For this purpose, various partially complementary methods of examination in addition to the history and clinical findings are at our disposal: plain chest roentgenography, abdominal sonography, transthoracic and transesophageal echocardiography, computed tomography, magnetic resonance imaging and angiography. Thirty-one of our patients have been studied to assess the reliability of the different methods. The advantages, diagnostic criteria and limitations of the methods are discussed.

Adult↗