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Biomedical subjects

J Putois

Publications and source records attributed to J Putois.

At least 19 recordsLinked to original sources
PubMed1984

[X-ray computed tomography in pleuropulmonary asbestos pathology].

Results of computed tomography and conventional radiology were compared during investigation of 17 patients with pleuropulmonary lesions from confirmed asbestosis. Computed tomography images appeared to provide improved data for detection and analysis of pleural plaques, particularly in the costovertebral grooves; false pleural images (associated shadows, fatty tissue) can be eliminated. The CT scan should occupy a place of choice for surveillance of subjects in contact with asbestos and presenting pleural anomalies.

Asbestosis↗
PubMed1978

[The transjugular approach to the hepatic region for the differential diagnosis of jaundice and exploration of the portal system (author's transl)].

The results obtained in a series of 200 patients, using the transjugular approach to the common bile duct for the differential diagnosis of cholestasis, are presented and discussed. 1. The advantages of the method are: --the simplicity of the technique and the rapidity with which it can be mastered, the negligeable investment required; --the safety in use if the only contra-indication is respected: recent acute infection of the biliary tract; --the possibility of obtaining a cholangiography and a liver needle-biopsy at the same time, even in cases with disorders of the blood. 2. The limitation of the method is the failure to visualize the CBD, which is seen in 30% of cases when the latter is not dilated by an obstruction. 3. The respective indications for either transjugular cholangiography or retrograde catheterization of the papilla can be defined. 4. A preliminary series of 37 explorations of the portal system by the transjugular approach with embolization of bleeding oesophageal varices is reported.

Adult↗
PubMed1976

[The contribution of nephro-urotomography in the diagnosis of unilateral non-functioning kidney in the adult (author's transl)].

The aetiological diagnosis of a unilateral nonfunctioning kidney is achieved by angiographic or retrograde techniques. Pyelography indicates only that organ is non-functioning. 71 patients were explored by nephro-urotomography carried out using high doses of contrast medium (2 cm3/kg) with rapid injection (10cm3/sec.) and repeated tomographic sections taken during the first minute after injection. These tomographic sections, three in number, made it possible to study the three phases of the nephrogram: cortical nephrography, cortico-medullary nephrography and tubular nephrography. The aim of this study was to assess the contribution of this technique in the aetiological diagnosis of a unilateral non-functioning kidney. In the majority of cases it is possible to suspect the vascular or neoplasic origin of the non-functioning kidney. Obstructive non-functioning kidneys have two distinct nephrographic appearances. Pelvic and retroperitoneal obstructions are visualised chiefly during the phase of cortical nephrography, which shows marked parenchymatous atrophy with the presence of rounded intrarenal lacunae. By contrast, obstruction secondary to pyelo-ureteral junction syndrome results in total destruction of the parenchyma. The phenomenon of total corporeal opacification plays a major role in the visualisation of the fibrous speta which form the limits of the pseudocystic pockets. In these patients, the contribution of study of early nephrograms is less evident. Bacillary non-functioning kidneys have an analogous appearance characterised by the particular frequency of abnormal opacities, calcified ormastic. Thus the aetiological diagnosis of a unilateral nonfunctioning kidney may be obtained in the majority of cases. This permits more judicious selection of those cases requiring angiography or retrograde exploration necessary to pre-operative assessment.

Humans↗