[Evaluation of the effect of Royat thermal gas in arteriopathy of the legs using thallium-201 muscular scintigraphy].

12 patients (group II) suffering from an arteriopathy of the lower limbs, stage II, were examined by thallium 201 muscular scanning. The aim of this study was to look for a possible muscular effect of Royat thermal gas injected subcutaneously. A preliminary study was conducted at rest, and consisted of recording the initial decay curve of thallium in the thighs and the study of the muscular fixation by different segments of the limbs, including the determination of the ratios of amounts fixed by the muscular and non-muscular zones. The results were compared with those obtained in 11 healthy subjects (group I) and no significant difference was noted between the two groups at rest. On the other hand, a considerable improvement of the fixation in the legs was observed after subcutaneous injection of thermal gas. The results are discussed in relation to the clinical and paraclinical data.