[Preoperative localization of parathyroid adenoma with technetium and thallium double-labeling scintigraphy. Difficulties related to associated thyroid lesions].

Technetium and thallium double-labeling scintigraphy with image subtraction was carried out on 63 patients suspected of having primary hyperparathyroidism, with or without thyroid involvement. Forty-four patients had a normal thyroid image with technetium. The positive foci located by double-labeling in patients who were to undergo surgery always coincided with parathyroid adenoma.

Delayed gastric emptying in anorexia nervosa is improved by completion of a renutrition program.

The effects of renutrition on gastric emptying and upper gastrointestinal symptoms were evaluated in 14 anorexia nervosa patients before and after weight gain. A double-isotope technique was used to measure gastric emptying of both the solid and the liquid phases of the meal. Upper gastrointestinal symptoms were frequent before renutrition, occurring in 78% of the patients.

Blood, liver and lung kinetics of technetium-99m-labelled granulocytes in the rat. Study by external monitoring with a gamma camera.

The external counting method was used to simultaneously measure the kinetics of intravenously injected polymorphonuclear cells labelled with Technetium 99m, in the lungs, liver and blood of rats. When radiolabelled polymorphonuclear leukocytes (PMN) are injected into animals, a large part is taken up by the various organs. This uptake may result from intravascular aggregation, capillary blocking (in which case the transit of the PMN is slowed down), vascular margination or, finally, from tissue infiltration.

[Exercise test coupled with thallium-201 myocardial scintigraphy after a primary posterior wall infarct. Apropos of 123 patients subjected to coronarography].

The following investigations were performed in 123 patients (118 men and 5 women) with an average age of 51 +/- 6 years, between the 3rd and 6 week after primary posterior infarction, a standard exercise stress test on a bicycle ergometer coupled with Thallium 201 myocardial scintigraphy, followed by coronary angiography in the following 15 days. The object of these investigations was to detect severe stenosis (greater than 70%) of the left anterior descending artery and 50% stenosis of the left main stem. Thirteen investigations could not be interpreted because of a submaximal exercise stress test which did not attain 85% of the theoretical maximal heart rate.