PubMed Health⌕ Search

Biomedical subjects

U Mödder

Publications and source records attributed to U Mödder.

At least 217 records · Page 12Linked to original sources
PubMed1979

[Value and results of computer tomography in diseases of the pancreas (author's transl)].

In a joint study carried out by the radiological university clinics of Bonn, Hamburg, Cologne, Leuven and Munich, 483 computer tomographs of the pancreas were evaluated. A correct histological diagnosis, or one confirmed at surgery, was obtained in 74.5% of 168 cases; in a further 9% an abnormality was seen in the pancreas or in its immediate vicinity, but was wrongly interpreted. The computer tomographic criteria of inflammatory processes and of tumours of the pancreas are given, and the not uncommon difficulties in distinguishing between these are discussed.

Acute Disease↗
PubMed1979

[Computer tomography of the facial skeleton and pharyngeal space (author's transl)].

Seventy-five patients with histologically confirmed abnormalities of the facial skeleton and pharynx, including the mouth and base of the tongue, were examined by computer tomography. The advantages of simultaneous demonstration of the soft tissues and bones in localised space-occupying lesions are pointed out. Accurate comparison between pre-operative descriptions and findings at operation in 30 cases showed high diagnostic accuracy. Conventional, multi-dimensional film tomography is being increasingly replaced by computer tomography.

Diagnosis, Differential↗
PubMed1979

[Computer tomography in the diagnosis of local recurrences after resection for carcinoma of the rectum (author's transl)].

Presacral or pelvic floor tumour recurrence after abdomino-perineal resection for rectal or anal carcinomas has not been amenable to early radiological diagnosis. Computer tomography is a procedure which can demonstrate recurrences of two to three cm. Within the pelvis with certainty. The reliability of the method has been demonstrated in 27 patients suspected of having recurrences. The effect of demonstrating or excluding a recurrence on subsequent treatment is discussed. The value of computer tomographic examination of the pelvis for demonstrating the position and extent of a recurrence, the displacement of neighbouring organs, destruction of the pelvis and involvement of iliac lymph nodes is shown.

Adult↗
PubMed1979

[Radiation dose in abdominal examinations with whole body computer tomography (author's transl)].

The somatic and genetic radiation exposure in abdominal CT examinations with Delta 50 and Delta 50 fast was measured via thermoluminescent dosimeters and compared with the exposure in conventional methods of x-ray diagnosis. With Delta 50 fast, the dose surface product for on examination of the pancreas is about 2900 Rcm2, and for an examination of the kidneys about 3400 Rcm2. It is thus comparable with a gastrointestinal examination or a urogram. The gonadal doses determined for CT are lower than those received from standard x-ray examination.

Gonads↗
PubMed1979

[Extension of thoracic roentgen diagnosis by computer tomography (author's transl)].

In 400 examinations of the thorax results of computer tomography were compared with respective pa chest films and conbentional tomograms. In the peripheral areas of the lung, interstitial parenchymal alterations and metastases were better visualized by CT. The size of central bronchial carcinomas and space-occupying lesions of the thoracic wall can be determined with greater accuracy by CT. Primary tumors, lymphnode enlargement and vascular alterations can be differentiated and localized more precisely by CT. The size of the heart chambers, intracavitary tumors as well as septal and myocardial wall thickness can be determined non invasively.

Aortic Aneurysm↗
PubMed1979

[CT scanning of the orbita (author's transl)].

Basing on selected cases, the efficiency spectrum of modern CT apparatus in the diagnosis of orbital disease is described. Besides exact localisation of retrobulbar space-occupying growths, CT scanning enables good identification of pathological processes at the bulbus and those of parabulbar location, at the lacrimal gland, the optic nerve and the ocular muscles. Extraorbital changes are clearly identifiable.

Eye Diseases↗
PubMed1978

[Diagnostic relevance of computer tomography (CT) in pancreatic disease (author's transl)].

CT-x-ray examination of 98 patients yielded pathologic results in 42 patients; in 33 patients results of CT could be controlled by surgery or at autopsy. In 14 cases necrotizing pancreatitis or pancreatic pseudocysts were suspected and these cases were operated upon; only 1 case turned out to be a falsely positive diagnosis. In 15 cases pancreatic carcinoma were found at surgery; 13 of these cases had been diagnosed preoperatively by CT; the diameters of the 2 tumors not diagnosed were below 3-4 cm. Differentiation between cysts, pancreatitis and tumors was possible in 2/3 of all cases; in 1/3 of the cases differentiation was neither possible by applying morphological criteria nor by evaluating absorption spectra. It turned out to be advantageous to examine the parenchymatous organs surrounding the pancreas by CT as well; in about 12% of cases with pathological findings the processes were found to be localized extrapancreatically.

False Positive Reactions↗
PubMed1978

[Extension of thoracal diagnostics through computer tomography (author's transl)].

The utilization of transverse layers in computer tomography opens up a new level of examination for localization of pathologic processes in the thorax and their spread. The good resolution of roentgen absorption differences in the soft parts enables the use of computer tomography in the diagnosis of pericardial effusions and for further differentiation of known mediastinal growing and displacing processes. This method is also suitable for the identification of aneurysms, since it is not invasive and places hardly any strain on the patient. Finally, computer tomography can also be used for radiotherapy and operation planning, as well as in target biopsy on account of the true-to-scale and reproducible image of the body cross-sections.

Aortic Diseases↗
PubMed1978

[The efficiency of computer-tomography and conventional tomography of processes of the skull and of the skullbase (author's transl)].

In 12 patients with tumorous or chronic-inflammatory diseases of the skull and the skullbase the results of conventional and computer-tomography were compared with the operative findings. The computer-tomography of the most important regions is demonstrated by individual examples. The preliminary results indicate, that computer-tomography is reliable in evaluation of the extend of pathological processes. Therefor follow-up data after treatment were obtained by computer-tomography only.

Carcinoma↗
PubMed1978

[Diagnosis of aortic aneurysms by computerized tomography (author's transl)].

Computerized tomography has proved to be of great value in the assessment of aortic aneurysms; since it provides all necessary information about length, width, intraluminal thrombi, and calcification of the wall. Especially in cases of ruptured aneurysms the hemorrhage and its extent to retroperitoneal and intraperitoneal space can be well demonstrated.

Aged↗
PubMed1977

[An investigation into the effect of xerographic property on tomograms (author's transl)].

The properties of xerography as they affect tomography have been studied on phantoms. It was shown that, apart from better rendering of soft tissues, there is no fundamental difference. Section thickness and unwanted shadows are not influenced either way for optimal exposures. Significant improvement in diagnostic information can only be expected, if at all, under very special circumstances.

Models, Structural↗
PubMed1977

[Polycystic degeneration of parenchymatous organs in the abdomen or malignant tumour? Computer tomographic investigations].

The report deals with the computer tomographic investigation of a space-occupying intra-abdominal process in which there were polycystic lesions of the liver, kidneys and pancreas. CT scanning combined with biochemical investigations provided clear proof of the presence of cysts, their morphology and extent. The possibility of the neoplasm could be excluded; it proved unnecessary to carry out any invasive procedures and a laparotomy also became unneccessary.

Abdominal Neoplasms↗