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Biomedical subjects

E Schindler

Publications and source records attributed to E Schindler.

At least 127 records · Page 7Linked to original sources
PubMed1980

[Computer tomography in the investigation of renal trauma (author's transl)].

Two patients with blunt renal injuries (Hodges grade I and II), and two further patients with spontaneous renal and/or retroperitoneal hemorrhage, were studied with excretory urography, isotope scanning, ultrasound, angiography, and computerized tomography. The most important additional information provided by the CT scan was the disclosure of small parenchymal lacerations, as well as the presence and extent of perirenal hematomas. These abnormalities could also be monitored with CT studies during the healing phases. Renal excursion studies during breathing and the usual tomography seem to be no longer necessary in renal trauma cases if one plans to utilize CT scanning. Likewise, the necessity for angiographic studies decreases. Ultrasound, however, may still be helpful in certain cases of perirenal hematoma.

Adult↗
PubMed1980

[Radiological findings in renal capsular tumors (author's transl)].

Renal capsular tumors are rare. Preoperative diagnostic is based on radiology. Typical urographical findings are marginal impression and dislocation of the entire kidney without deformation of renal pelvis and calices. Angiography is the most decisive method of investigation, especially in malignant mass lesions. These tumors generally have hypovascular neovascularity without puddling. They can be supplied both by capsular and renal, lumbar and intercostal arteries. The renal parenchyma is contrasted homogeneously without defects, the margin is sharply defined. Computer tomography can best demonstrate the extent of the lesion and distinguish it from neighboring organs; in lipomas and cysts even a histological prediction is justified with this method. Preoperative diagnostic accuracy is limited by the fact, that even the pathologist, in some cases, is not able to decide upon the origin of these tumors.

Adult↗
PubMed1979

Renal phlebography in diagnosis of poorly vascularized renal malignancies.

Eight cases are presented to demonstrate the value and limitations of renal phlebography in the diagnosis of poorly vascularized renal malignancies. Because of the easier compressibility of the thinner venous channels, malignant tumors may cause more pronounced phlebographic changes than seen in corresponding arteriographic studies. Changes include venous compression and amputation, tumor thrombus, and venous neovascularity. It is believed that the supplementary use of renal phlebography at the same time arteriography is being accomplished may increase the chances of preoperatively diagnosing such hypovascular renal malignancies as papillary-tubular adenocarcinomas, metastatic and necrotic malignancies, and invasive transitional cell carcinomas.

Adenocarcinoma↗
PubMed1979

[Tumors of the pineal region. Part I: neurologic and neuroradiologic symptoms in 23 patients].

After a short anatomical review about the neighbourhood of the lamina quadrigemina 23 patients with different processes in the pineal region were investigated with regard to their neurological symptoms and radiological findings. Symptoms of the eyes in conjunction with signs of elevated intracranial pressure in most of the cases show the way to the diagnosis which will be completed by ventriculography, angiography, and recently by computer tomography with regard to the expansion of the process; any prediction about the kind of tumour is possible only in a little percentage.

Adolescent↗
PubMed1979

[Tumours of the pineal region: Part II: results of treatment in 23 patients (author's transl)].

The outcome of 23 patients with tumours in the pineal region was investigated following treatment with shunting, irradiation, extirpation or with a combination of these three procedures. The choice of therapy is difficult because in most cases the kind of tumour is unknown. The irradiation of radioresistant lesions however causes an unnecessary injury of the surrounding tissue whereas the trial of extirpation of a radiosensitive tumour exposes the patient to an unnecessary danger. After the results of therapy a method of treatment is proposed.

Adolescent↗
PubMed1979

[Evaluation of unilateral renal function in urinary obstruction. A comparison of various radioisotope methods (author's transl)].

The catheter-free determination of the unilateral 131I-hippuran clearance correlates well with the unilateral clearance determination with 99mTc-DMSA in patients without obstruction. In patients with unilateral chronic obstruction the clearance of 131I-hippuran on the average is 13% higher than the clearance determined by the DMSA method. After successful correction of the obstruction the two values are identical. 123I-hippuran is foundin the renal pelvis already after 90 seconds in some cases of marked chronic obstruction. The functioning part of the involved kidney is therefore possibly overestimated whereas the DMSA uptake reflects the actual function. Both radioisotope methods should be applied preoperatively in order to evaluate the individual renal function. Functional scintigraphy in patients with obstruction should preferably be carried out with 123I-hippuran.

Humans↗
PubMed1979

[The width of the internal auditory meatus in Bell's palsy. A radiological-tomographical study (author's transl)].

44 patients with ischemic facial paralysis were studied and tomograms made of both petrous bones. An attempt was made to establish the normal averages of various portions of the internal auditory meatus (fundus, middle, porus) from frontal projections. In addition, a comparison of each portion of the internal auditory meatus was made between diseased and healthy sides. Of patients studied, one third showed a narrowing of the internal auditory meatus on the involved side. A correlation between narrowing of the bony internal auditory meatus and the occurrence of an ischemic facial paralysis could not be established. However, such cannot be totally excluded as a contributing factor in the origin of a Bell's palsy.

Adolescent↗
PubMed1979

[Spontaneous fistulae and abscesses of the upper urinary tract (author's transl)].

Spontaneous cutaneous fistulae and abscesses of the renal pelvis and ureter have become rare. Six case reports demonstrate their etiology and differential diagnostic problems. If there is no underlying urologic disease, above all no urolithiasis, other causes of fistulae and abscesses should be kept in mind, the most frequent of these being Crohn's disease.

Abscess↗
PubMed1978

The diagnostic value of CT for radiotherapy of cerebral tumors.

The paper deals with CT followup studies on 73 patients with cerebral tumors who received radiotherapy. The value of CT for the indication of radiotherapy, for followup therapy and for the demonstration of therapeutic success are discussed. Since the cerebral tumors become visualized by means of CT in their entire extent and can be differentiated from perifocal edema, the question arises whether radiotherapy should consist of higher doses in the future. It is also suggested that the "clinical malignancy" may be used to compare the behavior of cerebral tumors when there is no exact histological classification. The possible histopathological effects of radiotherapy (edema, necrosis) and their demonstration by CT are discussed.

Adult↗
PubMed1978

[Contribution to the diagnosis of cortical atrophy: evaluation of computer tomograms and angiograms of patients over 70 years old (author's transl)].

To find evidence of cortical atrophy, 112 computer tomograms and 40 angiograms of patients above the age of 70 were evaluated. In the CT the width of the interhemispheric and of the sylvian fissure, in the angiograms the distance between the vessels extending into the interhemispheric fissure (anteroposterior view) and the distance between the cortical branches and the inner table (lateral view) were measured. The same measurements were performed in 100 normal computer tomograms and in 100 normal angiograms of patients between 20 and 40 years old. Statistically significant differences could be ascertained between the mean values for the patients over 70 and those for the younger ones, indicating that age-induced cerebral atrophy can be neuroradiologically demonstrated. The radiologic findings, however, do not necessarily correspond to the grade of intellectual impairment in the elderly. Neuropathologic and molecular biological research could bring us closer to the solution of this correlative problem.

Adult↗
PubMed1978

[The use of computer tomography for radiation therapy of cerebral tumours (author's transl)].

The application of computer tomography should be extended for indicating the need and choice of radiotherapy for cerebral tumours, and for observing the effects of treatment. In 26 patients it has been shown that CT is superior to conventional neuro-radiological methods in showing indications and in planning of radiation therapy. Forms of treatment can be suitably adapted where the histological type of the tumour is known. In most cerebral tumours, the beneficial effect of irradiation has been evident in our patients. Our criteria were based on the concept of "clinical malignancy", no attempt was made at a histological classification of the tumours.

Adult↗
PubMed1978

Value and limits of computerized axial tomography in ORL.

The CT findings in some selected cases presenting lesions of the paranasal sinuses and the orbits are compared with the conventional tomograms. Referring to these examples, our experience of value and limits of CT in ORL is reported. Furthermore, a few remarks to CT in cerebellopontine angle tumors are given. Finally, there are pointed out some general considerations concerning radiodiagnostic questions in tumors of the ORL region.

Brain Neoplasms↗
PubMed1978

[Current possibilities of preoperative diagnosis in planned partial kidney resections].

Sequential and functional scintigraphy utilizing the regions of interest technique has a definite place in preoperative diagnostic renal evaluation prior to partial nephrectomy. Whereas scintigraphy offers information regarding parenchymal function and eventual therapy, renal angiography enables one to visualize the vascular tree, which is technically important for the urologist during surgery. The fate of the diseased parenchymal portion should not only be determined from the subjective intraoperative findings, but rather from more exact methods which measure function and morphology.

Adult↗