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R Dondelinger

Publications and source records attributed to R Dondelinger.

32 records · Page 2Linked to original sources
PubMed1979

[Computerized tomography: physiological reheightering of the images by sugars (author's transl)].

During experimental utilization on the dog (per os) of several types of materials capable to be modified by the liver after digestive absorption, sugars appeared naturally opaques in the gastric cavity and so they could substitute in C.T. to the habitual materials of contrast, we also notice some belated modifications on intra hepatic density that might be in relation with the metabolism of intra hepatic glucose.

Animals↗
PubMed1979

The use of iodolipids in hepatosplenic computed tomography.

Iodolipids have been used as a contrast medium for hepatosplenic computed tomography (CT) in 148 patients. In all but two of these cases, the contrast material was injected by the intravenous route. The method appears to be safe due to the marked reduction of dosage in CT compared with conventional radiographic iodolipid hepatography. This decreased dosage is made possible by the improved density and spatial resolution of CT. Pictorial and histographic densitometric analysis of normal and abnormal liver after iodolipid administration yields considerable diagnostic improvement.

Fatty Acids↗
PubMed1978

[Tomodensitometry in osteoarticular pathology. Preliminary results].

From the investigation of 180 patients, the preliminary results of tomo-densitometric study ("scanning") of the locomotor system are presented. The technique permits investigation in the transverse spatial plane, which is ignored in conventional radiology. We feel this to be a major advantage in osteo-articular disease, especially for the spine (measurement of the diameter of the canal, analysis of the posterior structures), the sacro-iliac joints, hip joints (easy-measurement of the angles of anteversion) and patello-femoral joints. The densitometric measurement is the second advantage. It allows the estimation of the degree of bony calcification of any bone in the body with great precision. The preliminary study already demonstrates the limitations of the technique (exploration of a single transverse plane, edge effect, and necessity for a new anatomy).

Bone Diseases↗
PubMed1977

[Hepatic and pancreatic tomometry. Radioanatomy and application to hepatic pathology].

More than 250 hepatic and pancreatic tomometries were carried out on a first generation tomometer. Anatomical and tomometric correspondances carried out on the cadaver led to precise radiological anatomy of the abdomen. Tomometry either alone or carried out after impregnation of the liver parenchyma with an emusion of lipiodol in low dosage permits one to demonstrate hepatic lesions of the order of one centimeter diameter whatever their localisation. Densitometry differentiates not only solid lesions from fluid lesions but permits in certain cases a diagnosis of the nature of the lesion.

Animals↗
PubMed1977

[Abdominal tomometry. 1st results in exploration of the liver and pancreas].

Over a two month period, 120 patients were explored using an Acta Scanner tomometer for various hepatic disorders. In parallel, comparison was made of anatomical slices and computed tomography findings in cadavers and isolated livers. This made it possible to recognise normal structures seen at computed tompgraphy and to identify certain hepatic images which might be sources of error. Serial transverse axial sections were used to reconstruct the whole liver in space, thereby making it possible to eliminate certain cases of pseudotumoral hepatomegaly. Systematic densitometry was carried out using hepatic radio-anatomical and pathological studies. This new type of analysis led to a quantified diagnosis in certain diffuse hepatic disorders and a histological approach to tumour lesions. Hepatography using special contrast agents in very low dosage was used in liver computed tomography after animal experiments. This method, free of untoward effects, makes possible the diagnosis of hepatosplenic tumour lesions less than one centimetre in diameter.

Cadaver↗
PubMed1977

[Abdominal tomometry. Application to study of the liver. Experimental study, initial clinical results and perspectives in the exploration of tumour pathology (author's transl)].

Over a period of two months, 120 patients were studied using an Acta-Scanner tomometer for various hepatic disorders. In parallel, comparative tomometric and pathological studies were carried out in cadavers and isolated livers. These made possible the recognition of normal structures in tomometry and the identification of certain hepatic images which might be potential sources of error. Serial axial transverse sections were used to reconstruct the volume of the liver in space, thus making in possible to eliminate certain forms of pseudo-tumoural hepatomegaly. Systematic densitometric analysis was made by radiological anatomical study and in hepatic pathology. This new type of analysis led to a quantified diagnosis of certain diffuse hepatic diseases and a histological approach to tumour lesions. Hepatography using liposoluble agents in very low dosage was used in hepatic tomometry after animal experimentation. The method, free of untoward effects, makes possible the diagnosis of hepato-splenic tumor lesions less than one centimetre in diameter.

Absorptiometry, Photon↗
PubMedDate not supplied

[Arterial radio-anatomy of the extrahepatic biliary system (author's transl)].

The uni-arterial vascularisation of the lateral bilary duct makes it impossible to systematise the arteries which supply the common bile duct. Only the cystic artery is seen at coelio-mesenteric catheterization. The techniques essential for visualisation of the cystic artery are discussed, on the basis of one hundred coelio-mesenteric arteriograms: frequency of demonstration, origin, course, termination, calibre and length. The frequent finding of opacification of the wall of the gall bladder under normal conditions is stressed.

Arteries↗