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Biomedical subjects

M Haertel

Publications and source records attributed to M Haertel.

At least 55 records · Page 3Linked to original sources
PubMed1982

[CT morphology of biliary neoplasias (author's transl)].

In a retrospective study the Ct morphology of cholecystocarcinomas, cholangiocarcinomas and papillary carcinomas is discussed on the basis of 36 patients. Particular attention is given to the differential diagnostic criteria.

Adult↗
PubMed1981

Computed tomography in carcinoma of the rectum.

A total of 11 cases of untreated carcinoma of the rectosigmoid colon and 56 cases of recurrent rectosigmoid carcinoma have been investigated by computed tomography. A tumor size of more than 2 cm in diameter is easily demonstrated within the rectosigmoid wall. Invasion of the pararectal fatty planes and the neighboring structures and organs is conclusively diagnosed when obliteration of the demarcating fat planes is demonstrated. Enlargement of the regional lymph nodes of more than 15 mm diameter indicates malignant metastatic spread. Local malignant recurrence following complete resection of the rectum is recognized when the tumor size has reached 2 cm or more. Fine-needle aspiration biopsy may be necessary to conclusively identify malignant tissue within the postoperative cavity.

Adult↗
PubMed1981

[Measurement of tibial torsion-Comparison of various methods was computerised axial tomography (author's transl)].

The success of an operative correction taking for an example tibial realigment, depends largely on the accuracy and precision of preoperative measurements of tibial torsion. Several methods which are reported in the literature are discussed and compared with a computer-aided tomographic method (CT method). Some diagnostic indications for the CT method, in the case of tibial and femoral torsion measurements are described.

Ankle Joint↗
PubMed1981

[Computer tomography for staging of bronchial carcinomas (author's transl)].

Thoracic computer tomography was performed in 135 patients with bronchial carcinoma. 1) In 90% a precise estimate of the extent of the primary tumour was possible. The computer tomogram was markedly superior to traditional radiological methods in showing invasion of the chest wall and mediastinum. 2) Regional lymph node metastases were demonstrated correctly in 82%. Lymph node enlargement must be differentiated from that due to benign causes. 3) In 92%, the extent of distal metastases could be correctly established. The computer tomogram makes it possible to avoid exploratory thoracotomy if there is transpleural invasion, extensive mediastinal lymph node metastasation or distant metastasation. Where there is doubt, computer tomography-guided needle aspiration should be employed.

Adenocarcinoma↗
PubMed1981

Computerized tomography versus angiography in the staging of malignant renal neoplasm.

A comparative diagnostic study was carried out on 40 patients with pathologically proven renal malignancies which were staged both by angiography and CT. CT is more accurate than angiography for the detection of both perirenal and pararenal extension of the primary tumour (T-staging), and angiography is only slightly superior to CT in the evaluation of intravascular extension of the malignancy. The diagnostic performance of CT is clearly superior to angiography in detecting malignant lymphatic spread (L-staging) and distant metastases (M-staging). CT is, therefore, becoming the primary diagnostic approach for the staging of renal malignant tumours.

Adolescent↗
PubMed1981

[Sonography of vascular and biliary epigastric structures].

Ultrasonic devices with rapid image build-up and high power of resolution enable detailed assessment of the vascular and biliary structures. Visualisation of the biliary tract of normal lumen in the extrahepatic region enables identification of a biliary obstruction at a time where dilatation of the intrahepatic biliary tract has not yet taken place. The identification of small visceral branches of the aorta abdominalis as well as of portal and systemic veins yields sonographically reliable vascular points of reference which enable, apart from the exact localisation of the biliary tract and of the pancreas, accurate topographic identification of abdominal mass lesions.

Bile Ducts↗
PubMed1981

[Thoracic computer tomography in malignant Hodgkin lymphoma].

A retrospective study of 65 histologically proven lymphoma patients evaluated the staging capabilities of CT in Hodgkin's disease. Nodal and extranodal tumor manifestations were detected in the mediastinum (89%), thoracic bones (23%), pleura (26%), periphery of the lung, and in 14% as an infiltrating thoracic well lesion. Advantages and disadvantages of the method are discussed.

Adolescent↗
PubMed1980

[Computer tomography in the investigation of the suprarenal gland (author's transl)].

The computer tomographic appearances of pathological processes in the suprarenal were evaluated in 55 patients; consideration is given to individual normal variations and to various sources of error. It is concluded that adrenal computer tomography is the primary radiological means of diagnosis, particularly for diseases which deform the contours of the glands. Usually angiography is unnecessary. The structure and density of various adrenal masses, and their behaviour after intravenous contrast, usually provide a fairly accurate diagnosis. Nevertheless, exact evaluation of the findings can only be made in the clinical context and decisions regarding treatment should be the result of an interdisciplinary approach.

Adrenal Gland Neoplasms↗
PubMed1980

[Sonography and endoscopic retrograde cholangio-pancreatography in the diagnosis of diseases of the pancreas and biliary system (author's transl)].

The value of sonography and ERCP was studied in a retrospective series of 128 patients with pancreatic and biliary disease. Sonography and ERCP employed singly provided a correct diagnosis in 68% and 75.5% respectively; combined diagnostic accuracy rose to 85%. The inclusion of other diagnostic information produced almost identical figures for sonography and ERCP of 82% and 86% respectively. Consequently, sonography must be recommended in the first place as a non-invasive method for the diagnosis of pancreatic and biliary disease. The indications for ERCP are for the elucidation of chronic pancreatitis without pseudo-cysts and for other pancreatic abnormalities not clearly shown by sonography, and also for the demonstration of the biliary system in non-obstructive jaundice.

Cholangiopancreatography, Endoscopic Retrograde↗