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Biomedical subjects

B Kurtz

Publications and source records attributed to B Kurtz.

At least 55 records · Page 3Linked to original sources
PubMed1985

[Significance of computer tomography for operative tactics in esophageal cancer].

In patients with tumor stage T1-CT is useful in the detection of enlarged lymph nodes. In 93% of the cases with tumor stage T2-CT gives exact information about tumor extension and infiltration. In addition 70% of the patients with positive lymph nodes can be evaluated. In T3 tumor infiltration in nearby organs can be demonstrated in 94% and lymph node metastases in 79% of the cases. The therapeutic consequences are: In tumor stage T2 and T3 subtotal esophagectomy with retrosternal stomach replacement by cervical anastomosis should be aspired for reasons of postoperative irradation of the esophageal bed.

Esophageal Neoplasms↗
PubMed1985

[Computed tomographic diagnosis of liposarcoma].

One hundred and eighty-two fat-containing soft tissue tumours have been found in 27 400 CT examinations. Amongst these there were 22 malignant liposarcomas. CT is unable to give a tissue diagnosis but, nevertheless, provides some important criteria which make it possible to differentiate benign lipomas from lipomatous tumours, particularly liposarcomas, which require surgical intervention.

Adult↗
PubMed1985

[Nuclear spin tomographic studies in liver diseases].

Various diseases of the liver were studied by nuclear resonance tomography using a supra-conductive magnet, with 0.5 T field strength, and the value of the method for the diagnosis of these conditions has been studied. MR tomography is superior to CT for differentiating between solid and fluid lesions, such as haemangiomas since, by choosing suitable techniques, high contrast can be achieved without enhancement. Most diffuse parenchymal diseases and heterogeneous malignant tumours show little change in relaxation times and therefore cannot be diagnosed with great sensitivity or specificity. Nuclear magnetic tomography cannot replace the sonographic, CT and nuclear medicine techniques used for examining the liver, but is a useful addition for special problems.

Carcinoma, Hepatocellular↗
PubMed1984

[Value of digital projection radiography with a CT apparatus for thoracic diagnosis].

In order to examine the value of the digital projection radiography (DPR) for chest diagnostics, the digital radiograms of the chest have been compared with conventional radiograms in case of 350 patients. From 469 pathological diagnoses 84.2% could be diagnosed by the conventional roentgen film technique and 93.4% by the DPR. The results show that the DPR proves to be superior in recognizing peripheral pulmonary foci of less density and mediastinal processes as against the chest radiogram. The cause for this is the high density respectively contrast resolving power of the system. Advantages may be expected by the development of CT independent units for the DPR of the chest with improved geometrical resolving power, by new image reconstruction methods, and by the dual energy subtraction.

Diagnosis, Differential↗
PubMed1984

[High-resolution computed tomography of the petrous bone].

High resolution computed tomography provides the means for demonstration of small anatomical structures and their normal variants in the middle and inner ear. The anatomy is described systematically and in detail and is illustrated. Axial cuts are a convenient method of examination; it may be supplemented by coronal cuts for special problems. The wide scope of the method provides numerous indications for patients with otological and neurological problems.

Adult↗
PubMed1984

[Progress in endoprosthesis via computed tomography?].

A new procedure for the manufacture of endoprostheses with the aid of computer tomography is described. This modern radiological technique has not only revolutionised many diagnostic problems, but will also affect treatment intimately.

Joint Prosthesis↗
PubMed1984

[High-resolution and dynamic computed tomography in the diagnosis of glomus tympanicum and glomus jugulare tumors].

In order to differentiate residual or recurrent tumour from scar tissue, high resolution computer tomography was combined with dynamic scanning. In 19 patients examined, glomus tumours were found in eight and lymph node metastases in one. This non-invasive method, which can be used on an outpatient basis, is essential for follow-up and is useful as an addition in primary tumour staging.

Female↗
PubMed1984

[Adverse effects of curative radiotherapy of prostate cancer].

The side effects of primary percutaneous radiotherapy in 100 patients with prostatic cancer were evaluated and classified into different degrees of gravity. It was shown that especially chronic side effects are benign in most of all cases. Severe - but not vitally dangerous - complications in bladder and intestine are rare (3%); their percentage corresponds roughly to the average mortality rate of surgical intervention (radical prostatectomy). Contrary to operation, troubles of the sexual function appear only in one third of the patients. Taking into consideration the similar therapeutic results of surgical intervention and radiotherapy, radiotherapy is more favorable with respect to side effects. This essential aspect should be considered when making a decision whether to apply a surgical or a radiotherapeutic treatment treatment.

Female↗
PubMed1983

Computer-aided manufacture of individual endoprostheses. Preliminary communication.

Long-term anchorage of foreign material in vital bone has proven to be the main problem in endoprosthetics. In the authors' opinion, modelling an endoprosthetic anchorage component to the individual anatomic needs is, at present, the best way to transmit stresses harmoniously from the prosthesis to the sensitive bone, in order to utilize functional adaptation, and to guarantee long-term function. The production of a true-to-scale joint model is possible with computer-assisted tomography. This model of the joint or bone canal can be used to construct an individual endoprosthesis prior to surgery. A procedure described.

Biomechanical Phenomena↗
PubMed1983

[Ultrasonic diagnosis of pleural shadows compared to computer tomography].

Sonography was performed in 40 patients with pleural shadowing of uncertain origin in order to complement conventional x-ray examination. Where the findings were not clear-cut, computer tomography was performed subsequently and the diagnosis ascertained by biopsy or operation. Fluid-containing pleural lesions, such as encysted effusions and empyemas, pericardial cysts and one echinococcus cyst were identified by sonography from their appearance and biopsy was performed; computer tomography adds little additional information in these conditions. Solid pleural masses, on the other hand, can be more accurately defined by computer tomography. This shows the entire pleura, including small areas of calcification. Density measurements are able to differentiate various tissues, and particularly fat.

Cysts↗
PubMed1983

[Computer tomographic and sonographic diagnosis of diaphragmatic hernias].

The diagnosis of supra diaphragmatic masses, particularly Morgagni's, Larrey's or Bochdalek's hernia was rarely possible by conventional methods. By using sonography and, more particularly, computed tomography, these hernias can be distinguished from other masses in the region of the diaphragms. Their characteristic appearances and the diagnostic procedures are described. Invasive procedures, such as diagnostic pneumoperitoneum, are no longer necessary.

Diagnosis, Differential↗
PubMed1982

[The radiological and endoscopic appearances of Crohn's disease of the upper gastro-intestinal tract (author's transl)].

Involvement of the upper gastrointestinal tract (oesophagus, stomach, duodenum, jejunum) accounted for 13% of endoscopically proven Crohn's disease in patients at the University Clinic, Tübingen between 1973 and 1980. The basis for the diagnosis was the presence of epitheloid granulomas. The diagnosis was suspected in 26% of patients on endoscopic appearances alone. In these two groups, the appearances were similar, consisting of atypical or linear ulcers, cobble-stone lesions, chronic erosions, aphthous ulcers, stenoses, coarsening of the mucosa and areas of engorgement and granularity. Most patients were also examined radiologically. The radiological findings correspond with the endoscopic observations. Using a double contrast technique, mucosal changes could be demonstrated which, up to now, were only seen by endoscopy. If these findings are observed either radiologically or endoscopically, it is essential to examine the distal portions of the gut.

Biopsy↗