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We have studied the diagnostic potential of thallium 201 in cerebral metastases. Twenty-five patients with one or several metastases have been investigated with two tracers, 201T1 and sodium pertechnetate (99Tcm). With 201T1, all the cases gave a positive result within ten minutes of injection. In 88%, the definition was better, and in five cases (20%)(More)
The three fold interest of bone scintiscanning is discussed in relation to 182 cases of bone metastases of various origins. Firstly, this technic facilitates early diagnosis of invasion of the bone by the detection of metastatic lesions which, in 7.7% of cases are still infraradiologic, or even of reflex algodystrophy of the legs, which can be detected only(More)
The method of measuring the regional blood volume by labelling the erythrocytes with Technetium-99m has been applied to two groups of patients suffering either from arteritis of the lower limbs or from Raynaud's syndrome. A reduction in the blood volume during physical effort has been observed in arteritis of the lower limbs, followed by a rise of varying(More)
We did 27 bone scintiscans in 20 patients, 15 of whom had Paget's disease. Early variations of isotopic activity were analyzed in the pagetic bone, and in normal bone and muscle tissue using 3 parameters: A1 or the period of maximum activity obtained when the isotope was first injected into the circulation, A2 or the isotopic activity at 30 minutes, and P(More)
Fab antimyosin scintigraphy has been shown to be sensitive and specific in detecting acute myocardial necrosis. This study was designed to evaluate the preoperative frequency of Indium-111 (In-111) antimyosin myocardial uptake in patients scheduled for coronary artery bypass surgery. The scintigraphic results were compared with other criteria of myocardial(More)
Relative variations of the cerebral and extracerebral blood volume (CBV) were measured continuously by a novel atraumatic method in baboons to explore the relationship between changes in the systemic circulation and in the cerebral (and extracerebral) vascular responses, before, during and after generalized seizures induced by photic stimulation. Major(More)
The effects of a mean ultrafiltration of 2000 ml on hemodynamics during regular hemodialysis (RD) and during sequential ultrafiltration hemodialysis (SUH) have been compared in ten patients on maintenance dialysis. Each patient was submitted to two dialysis sessions at 2 days' interval. The hemodynamic studies were performed with a thermistor Swan-Ganz(More)
The method of labelling red cells with technetium-99m was used to measured regional blood volume auring different types of epileptic seizures induced in the Baboon Papio papio. During seizures the cerebral blood volume increases and there is simultaneously a decrease of blood volume in nasal and hepatic regions, and a transitory increase of blood volume in(More)