PubMed Health⌕ Search

Biomedical subjects

D Koischwitz

Publications and source records attributed to D Koischwitz.

At least 19 recordsLinked to original sources
PubMed1986

[Sonography and computed tomography before and after liver resection and transplantation].

The diagnostic value of sonography and CT was studied in 259 patients. In the diagnosis of solid tumours, CT is superior to sonography, whereas ultrasound is more useful in the investigation of cystic lesions. In estimating the extent of intrahepatic tumours, the falciform ligament is more useful than a line from the cava to the gall bladder, both for CT and ultrasound, although in this case CT shows the extent of tumours more accurately. 3.7% of the ultrasound and 2.3% of the CT examinations were of limited value because of unavoidable technical problems.

Carcinoma, Hepatocellular↗
PubMed1986

[Experiences with a modified nephrostomy instrument kit in ultrasound-guided kidney fistulization].

During a period of 24 months, ultrasound-guided percutaneous nephrostomies were performed in 51 patients in the Hospital at Köln-Merheim. The procedure was carried out with a modified nephrostomy instrument manufactured by Angiomed, Ettlingen, according to our own design. The procedure was successful in 49 patients. In one case it had to be abandoned because of lack of patient co-operation. In one patient a pyonephrosis was found and the patient was treated surgically.

Humans↗
PubMed1986

[Intraoperative sonographic demonstration of intraspinal tumors].

Four examples are given to demonstrate the problems, methods and advantages of intra-operative sonography for intra-spinal tumours. The value of intra-operative sonography for localising the tumours and for judging their extent is demonstrated and related to other imaging methods, such as myelography, CT and MR.

Carcinoma, Renal Cell↗
PubMed1986

[Correlation of scintigraphic and x-ray findings in Marie-Bamberger secondary hypertrophic osteoarthropathy].

The radiological and scintigraphic findings in the rare condition of hypertrophic osteoarthropathy (Marie-Bamberger) were followed up for a period of two years. They are described and compared. Skeletal scintigraphy shows the abnormalities in the skeleton at an earlier stage than does radiology and also shows more extensive manifestations. The specific symmetrical distribution of abnormally increased uptake in the diaphyses and metaphyses of the long bones of the extremities, with sparing of the axial skeleton, produces highly specific appearances which can be considered as diagnostic.

Adolescent↗
PubMed1985

[Intraoperative sonographic localization of brain tumors].

Twenty-six patients with mostly small intracranial space-occupying lesions were examined sonographically during surgery. In all patients, accurate localisation and complete delineation of the intra-cerebral lesion proved possible. The extent of the lesion could be determined accurately and surrounding cerebral structures were identified unequivocally. There were no significant differences in the appearances before and after opening of the dura. The significant advantage of the intra-operative use of sonography lies in the accurate localisation of the space-occupying lesion. This results in a reduction of interference with normal cerebral tissue and in a reduction of the duration of the operation.

Astrocytoma↗
PubMed1979

[Fibrinolytic treatment with urokinase in older phlebothrombosis (author's transl)].

28 patients with 1 to 6 week old occlusions of the femoral and/or iliac veins as well as the subclavian veins were treated with a standardised urokinase-heparin-scheme. The fibrinolytic therapy was generally performed over a period of 7 to 14 days. In 2 patients, the 1 and 6 weeks respectively old thromboses of the iliac, femoral and tibial veins, and in 4 patients the 5 to 16 days old thromboses of the subclavian veins could be dissolved completely, 16 patients showed clinically and phlebographically a substantial amelioration. In 6 patients no marked success was found.

Adult↗
PubMed1979

[The diagnosis of hydatid disease of the liver by ultrasound (author's transl)].

Demonstration and localisation of hydatid disease in the liver by ultrasound was successful in 41 patients (35 with cystic and 6 with alveolar disease). In cystic hydatid disease the demonstration of a cyst which contains a daughter cyst (5 of 35 cases), as well as a cystic conglomerate enclosed in a smooth capsule (17 of 35 cases), is typical for the disease. In 22 patients ultrasound alone provided the correct diagnosis. In the alveolar form the ultrasound findings were not typical for the parasite and could not be differentiated from solid or necrotising malignant tumour of the liver. The ultrasound method is thus of great value in the diagnosis of cystic hydatid disease, but if the findings are unclear--especially if the alveolar type of disease is suspected--further studies of the disease, in particular angiography, must be undertaken.

Angiography↗
PubMed1979

[Sonographic determination of liver volume. Problems, methods and practical significance of liver volume measurements (author's transl)].

A sonographic procedure is described which permits accurate determination of liver volume by simple means. Comparison between the sonographic measurements and volume determinations at autopsy carried out by water displacement of the isolated organ showed a statistical error of +/- 1.58% and for average liver volumes of 1,800 ml and 95% limits of confidence of -84 to +20 ml. Quantitation of liver size may be an important clinical measurement, e.g. in assessing the possibility of shunts in the lieno-portal system in portal hypertension with recurrent bleeding from oesophageal varices due to cirrhosis of the liver, for evaluating liver atrophy after shunts affecting the liver, for demonstrating liver size in right heart insufficiency and congestive states or for the control of the effectiveness of cytostatic drugs in lymphatic or haematological disease.

Autopsy↗
PubMed1979

[Diagnostic value of sonography of the bile ducts (author's transl)].

In obstructive biliary disease sonography proves to have a high diagnostic informative value. Dilatation of intra-and extrahepatic bile ducts is documented sonographically. In the majority of cases, analysis of sonographic findings will clarify the cause of biliary obstruction like cholecysto-cholangiolithiasis, carcinoma of the head of the pancreas, or various neoplastic disease in the area of the liver hilus. The obtained information is independent from contraindications like contrast medium allergies and severe parenchymal liver disease with impaired biliary secretion of contrast media.

Bile Duct Diseases↗
PubMed1978

[Duodenal stenosis in chronic relapsing pancreatitis (author's transl)].

Duodenal stenosis in chronic relapsing pancreatitis occurs in 20% of our patients. In 21 of our cases, the stenosis was always in the descending portion of the duodenum, and in two-thirds it caused an obstruction. The stenosis is always concentric with destruction of the mucosal pattern, widening of the neighbouring folds, irregular contours, and, possibly, straightening of the medial margin of the duodenum. There may be widening of the duodenal loop and frequently the duodenal loop is dilated. The causes for these appearances vary, but a peri-pancreatitis or duodenitis are most frequent. There is no close relationship with the severity of the pancreatitis. Our findings are compared with the small number of reports to be found in the literature.

Adult↗
PubMed1978

[Comparison between computer tomography and ultrasound in abdominal and renal growing and displacing processes (author's transl)].

The advantages and limitations of both methods are analyzed and compared. The comparison is effected on the basis of the present standard of equipment. The results obtained with both methods are demonstrated by means of the example of frequent epigastric diseases. Despite the still limited number of patients examined simultaneously both by ultrasound and computer tomography, it seems that the sensitivity of both methods in case of growing and displacing processes in the epigastric or renal regions, does not differ greatly. A comparison of the specificity of both methods will be effected only after a large number of patients has been examined by both methods at the same time.

Abdominal Neoplasms↗