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Biomedical subjects

J Freitag

Publications and source records attributed to J Freitag.

At least 55 records · Page 3Linked to original sources
PubMed1986

[Value of angiography and computerized tomography for preoperative evaluation of bladder cancer].

In a comparative study in 30 patients with tumour of the urinary bladder the value of angiographic and computer-tomographic investigation in the proof of tumours and for staging was controlled. In 30% of the cases the angiographic proof was not successful. A concordance to the histologically recognized degree of infiltration could be established by means of angiography in 36.6% and by computed tomography in 86.3%. When it is possible to apply computed tomography for staging we regard the performance of the angiography of the pelvis as no more indicated.

Angiography↗
PubMed1986

[CT findings in gastrointestinal tumors].

Any suspicion of lumino-abdominal tumour growth should be confirmed or invalidated by contrast medium examination. The authors of this paper, deviating from the generally accepted diagnostic strategies, used computed tomography and succeeded in recording gastrointestinal tumours from 25 patients. High-accuracy organ localisation of palpable intestinal tumours proved to be possible by means of computed tomography. Hence, primary diagnostic use of CT appears to be justified in exceptional cases.

Adult↗
PubMed1985

[Value of computer tomography in bronchopulmonary diseases in childhood].

In 20 children with bronchopulmonary symptoms and striking x-ray-thorax-findings computer-tomography examinations were carried out in addition to the usual diagnosis. Mediastinal demand for room and screening for tumor are recognized as essential indications in infancy for the application of CT-diagnosis in the chest. Computerized tomography is also indicated if an anomaly of blood vessels is suspected. In all other pulmonal diseases CT gives valuable information but in no case it replaces a bronchologic examination.

Adolescent↗
PubMed1985

[Value of computer tomography and lymphography for staging of malignant testicular tumors].

Findings of computer tomographic and lymphographic examinations of 74 patients were evaluated concerning their evidence in the pretherapeutic staging compared with the histological results of lymphonodectomy. The security of the computer tomography was about 82.4%, the specifity about 95.12%, the sensitivity about 66.66%. Lymphographically, a security of 85.14%, a specifity of 95.12% and a sensitivity of 66.66% was achieved. The combination of the methods achieved a security of 91.7%, a specifity of 100% and a sensitivity of 71.72% was achieved. Metastases of lymphatic nodes less than 0.5 cm diameter were not recognized by means of the two methods. In 2 cases no metastases, which were not covered by means of computer tomography, could not be recognized lymphographically in slightly enlarged lymphatic nodes. In contrast to this in 11 out of 74 patients (14.8%) in the computer tomography an enlargement of the findings was the result in comparison to lymphography. Since none of the two methods is absolutely reliable for the proof or the exclusion of smaller metastases, in a secure evidence of the computer tomography before a lymphonodectomy the lymphography can be omitted.

Adult↗
PubMed1984

[Percutaneous transluminal angioplasty of carotid stenoses].

The use of percutaneous transluminal angioplasty for the treatment of stenoses of the carotid artery in three patients is reported. In two cases, the artery could be dilated to its original lumen and in the third a significant dilatation was achieved.

Adult↗
PubMed1984

[Importance of post-therapeutic computer tomography follow-up studies of patients with malignant testicular tumors].

120 patients with malignant tumours of the testicles were subjected to follow-up studies for up to 7 years after the completion of therapy. In 27 cases (22%) metastases were found, which appeared almost exclusively within the first 3 years after treatment. There was definite evidence of metastasis in 9 out of 46 cases (19%) of seminoma and with 18 out of 74 nonseminomatous tumours.

Adolescent↗
PubMed1984

[Generalized angiomyolipomatosis within the framework of Bournville-Pringle disease--urological aspects].

2 cases of angiomyolipomatosis of the kidneys are taken as the basis for presenting the symptoms, diagnosis and therapy of this rare disease. In one case there was also an angiomyolipomatous change in the retroperitoneal lymph nodes. In differential diagnosis this gave rise to a suspicion of metastasis or a malignant system disease. In another case there was a coincidence with cystic degeneration of the kidneys.

Adult↗
PubMed1983

[Results of angiography studies of the solitary kidney].

Renovasography is better able than any other diagnostic method to distinguish the lack of one kidney from other anomalies and diseases which can give a false impression of this condition. In the retrospective evaluation of the renal angiograms of 3 858 patients, solitary kidney was diagnosed in 170 cases. In 123 cases the tentative diagnosis of agenesia or aplasia was confirmed by intra-aortic injection of contrast medium due to the apparent lack of the renal artery and the nephrographic effect with smooth aortic walls. In another 27 patients short remnants of the renal artery were found as the expression of a thromboembolic arteriosclerotic obstruction and 20 patients had a solitary kidney as the result of a nephrectomy. The discussion goes into the angiographic findings as regards age, sex, side, vascularization, variations of size and additional diseases of solitary kidneys.

Female↗
PubMed1983

[Correlation of computer tomographic, kidney vasographic and histological study results in solid kidney tumors].

Computertomography evaluates renal expansion precisely. In 105 patients differential diagnosis by means of computertomography was 95% accurate. In 93% of the cases it agreed with renovasographic and histological findings. It was possible to demonstrate or exclude the intrusion of a tumour into the renal vein in 61% of cases of tumour of the left kidney and in 55% of growths on the right side. The computertomographic evaluation of the vena cava inferior was confirmed by the histological findings in 71% and 65% of the cases, respectively. It was possible to exclude lymphogenous metastasis in 89% of the cases. In 4% computertomography gave falsely positive findings. In so far as computertomographic examination can give an unambiguous evaluation of a renal growth and a certain proof or disproof of the intrusion of a tumour into the venous system is made, preoperative renovasography can be dispensed with. Information on the operability of the tumour should be supplemented by clarification of lymphogenous and distant metastasis.

Adolescent↗
PubMed1983

[Post-traumatic hemobilia].

Diagnosing posttraumatic haemobilia is difficult since the symptoms are neither specific nor early or easy to detect. At present the mortality rate comes up to 20%. Clinical signs and diagnostic procedures are described in detail. Selective ligation of the liver arteries or partial resection of the involved lobes of the liver seem to be the best treatment. 3 cases are presented.

Cysts↗
PubMed1982

[Results of computer tomographic and lymphographic diagnosis of malignant testicular tumors].

89.5% accuracy was achieved using the pre-therapeutic combination of CT scanning and lymphography to diagnose the spread of malign testicular tumours in 28 cases. In 14% of the patients CT scanning was able to increase the diagnostic information. CT scanning should follow lymphography. The use of CT scanning to check on progress proved useful in 42 cases, both after lymphonodectomy and after irradiation therapy. In 7 cases (17%) the CT examination revealed metastasis.

Adolescent↗