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Biomedical subjects

D Gardeur

Publications and source records attributed to D Gardeur.

51 records · Page 3Linked to original sources
PubMed1978

[The value of computerized tomography in the exploration and surveillance of diencephalic tumours (4 cases) (author's transl)].

Computerized tomography has transformed the protocol of exploration and surveillance of diencephalic tumours. It gives information concerning their structure, extension and all associated pathology. In addition, the examination is non-traumatic for the patient which in most cases makes it possible to avoid classical neuroradiological procedures with contrast medium, and may be repeated in order to observe the course of these tumours after radiotherapy. Four cases are reported to illustrate the different contributions of CT scanning.

Adult↗
PubMed1978

[Comparison of CT, scintigraphy, and angiography in the topographic and pathological diagnosis of 300 supratentorial tumors (author's transl)].

The results of CT, scintigraphy (CSS), and angiography in 300 supratentorial cerebral tumors were compared with regard to the topographic and pathological diagnosis proposed in the initial reports. CT elucidated the topography in 98% of the cases and the pathology in variable percentages, depending on the type of tumor. The use of scintigraphy provided a high accuracy of pathological diagnosis. Except for meningiomas, arteriography was less accurate than the two other methods of examination. A radiological management of supratentorial cerebral tumors is proposed based on clinical and CT data.

Astrocytoma↗
PubMed1978

Bismuth encephalopathy and cerebral computed tomography.

Five cases of severe encephalopathy due to chronic ingestion of bismuth have been studied by cerebral computed tomography (CT). In every case, areas of increased attenuation coefficient in the basal ganglia and the cortex of the cerebral hemispheres were demonstrated. These regions of increased attenuation were diffuse with irregular, patchy denser areas. The increased attenuation in the gray matter territories contrasted with decreased attenuation of the white matter, particularly evident in the centrum semiovale of each hemisphere and probably related to edema. Some ventricular dilatation was also present in three cases. In one patient, areas of increased attenuation were demonstrated in the cerebellum. Follow-up CT studies of one patient revealed regression of the pathological findings. This regression accompanied the clinical improvement, which, in every case, followed the termination of the bismuth intake.

Adult↗
PubMed1978

[Tomodensitometric aspects of 3 cases of acute bismuth encephalopathy (author's transl)].

A study of 3 cases of acute bismuth encephalopathy by C. T. scanner revealed indisputable evidence of abnormal hyperdensity in certain brain regions. These hyperdensities, or rather hyperattenuations, are very typical in case no. 1, where the central grey nuclei, especially the caudate nuclei and cerebral cortex, have an important hyperdence appearance. The images are heterogenous, sometimes granular, and are not modified by the injection of a contrast medium. There are also ventricular and cisternal dilatations which are even more remarkable when the age of the patients (less than 45 years) is considered. Cases Nos. 2 and 3 showed hyperdensity which was mainly in the cortical hemispheres. Blood bismuth levels vary according to the date of bismuth stoppage, lying between 850 and 1.350 microgram p. 1.000 ml. The pathogenesis of these tomodensitometric images are discussed as a function the of atomic number of bismuth metal and its unequal distribution in the cerebral parenchyma and the meninges.

Adult↗