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Biomedical subjects

C Caron-Poitreau

Publications and source records attributed to C Caron-Poitreau.

At least 37 records · Page 2Linked to original sources
PubMed1981

[Contribution of computed tomography to the exploration of aortic aneurysms (author's transl)].

A technique for exploring aortic aneurysms is described, and the results analysed in 50 cases (11 thoracic, 32 abdominal, 3 multiple, and 4 with both thoracic and abdominal aneurysms). The diagnostic value of this method appears evident for aneurysms in the thorax, and it can reduce the need for conventional radiological examinations. Results of examination of abdominal aneurysms were compared with those of ultrasonography and angiography. Angiography was more effective for studying collateral lesions, while ultrasonography is still a reliable, non-aggressive, low cost investigational procedure. Computed tomography, however, represents the most polyvalent, non-aggressive technique for evaluating the size of the aneurysm, its thrombotic components, and its extension to neighbouring organs.

Adult↗
PubMed1980

[Computer tomography examination of the diaphragmatic pillars. Value during the study of the postero-inferior mediastinum (author's transl)].

The authors review the results of 100 computer tomography examinations of the normal thoraco-abdominal region and define the radiological anatomy of the posterior submediastinal space limited by the pillars of the diaphragm, which can almost always be investigated by computer tomography. Study of this posterior submediastinal space in 276 cases, by means of a strictly defined procedure, was used to illustrate the elementary signs encountered: effacement of the pillars, loose appearance of the pillars with absence of the median arcate ligament, presence of an abnormally sized structure in the middle of the space. The main indications for computer tomography examination of this region are for diagnosis of an opaque tumor of the postero-inferior mediastinum, and the investigation of extensions of bronchial cancers, regionally located neoplasms and lymphomas.

Blood Vessels↗
PubMed1980

[Contribution of computed tomography to radiological investigation of the adrenals (author's transl)].

Computed tomography examinations of the liver, kidneys, and pancreas were conducted in 466 patients over a period of one year, and both adrenals were visualized in 94 p. cent of cases. The adrenals were investigated during examination of the posterior submediastinal space in certain types of cancer, and clinically silent adrenal metastases were demonstrated in 14 patients with bronchial or pancreatic cancer. When computed tomography is employed for specific investigation of the adrenals (22 cases), the technique varies (5 mm thick sections, "angioscan"), and results are comparable with those of early renal tomography, ultrasonography, and scintigraphy. Computed tomography provides clearer evidence of small tumors (less than 2 mm in diameter) and hyperplasia, and can provide images that are perfectly correlated with operative findings, but not always with the histology of the lesions. A method for exploring the adrenals radiologically, including the use of computed tomography, is proposed as a function of the biological nature and size of the tumors.

Adrenal Gland Neoplasms↗
PubMed1979

[Thoracic and retroperitoneal cystic lymphangiomyomatosis. Value of lymphography].

Standard radiological examinations in a woman of 40 years of age with a pneumothorax and chylothorax revealed the presence of a posterior mediastinal mass compressing the oesophagus, and an interstitial syndrome. Retroperitoneal and mediastinal cystic lymphangiomas were found on lymphography. These findings are in accordance with the lymphangiomyomatosis described by Cornog and Enterline in 1966. The similarity between this disease and tuberculous sclerosis is underlined in present-day publications.

Adult↗
PubMed1978

[The role of early nephrotomography in renal insufficiency (author's transl)].

The use of early nephrotomography has added a supplementary functional dimension to intravenous urography films, made after the rapid injection of 60 ml of contrast media in the form of an embolus. This method enables the corticomedullary junction to be visualized in the nephrography, which is an important point in differential diagnosis. An analysis is made of the results obtained from early nephrotomographies in 50 patients with acute or chronic renal insufficiency. Satisfactory nephrographies were obtained in all cases and the position and size of the kidneys could be established. Certain nephrotomographic abnormalities appear more frequently during the course of some types of chronic nephropathies, and this can assist aetiological classification. The existence of dilated secretory cavities in the superior part of the kidney can be established very quickly. In this way it is possible to differentiate clearly between parenchymatous nephropathies and those due to obstruction, such as when oliguria or anuria is present. The presence of a persistent homogenous nephrography would evoke, under these same conditions, an acute medical nephropathy.

Acute Kidney Injury↗
PubMed1977

[A study of the lower urinary apparatus using 105 mm ampliphotography (author's transl)].

The exploration of the lower urinary apparatus was carried out using a 105 mm ampliphotography system. 230 examinations were performed according to several techniques: descending and micturition cystography; urethrocystography or retrograde and voiding cystography; cystography with suprapublic puncture; and cystometrography. An analysis of the results enabled an evaluation of the method. The morphological study may appear inadequate if electronic enlargement is not employed. The dynamic study is excellent in the diagnosis of diseases of the neck and uretheral stenosis. The limits of the amplifier field should not lead to a failure to recognize a possible vesicoureteral reflux. A decrease in the exposure dose makes it a technique of choice in children on the condition that the rate of exposures is not excessive and electronic enlargement is not performed too frequently.

Female↗