[Radioisotopic and biochemical parallels in various diseases of the thyroid gland].

The diagnostic value of the parallel investigations between the biochemical indices and radioisotope methods were followed up in the determination of the functional state of the thyroid gland. Ninety five patients were examined, subdivided into 5 nozological groups: 15 toxic adenomas with warm decompensated nodules; 20 mixed goiters with mainly warm nodules; 20 mixed goiters with typical sctintigraphic findings of the mixed goiter; 20 mixed goiters with cold nodules; 20 patients with Basedow's disease. The statistical assessment is according to the methods of variation correlation and alternation analysis. The correlation between the radiosiotope and biochemical methods is significant. Highest is the correlation coefficient between PBI and ETR in all groups discussed, especially in the group of toxic adenomas. The examination by capsules and medicamentosus treatment in advance diminishes the coefficient of correlation between. The importance of thyreoscintigraphic investigation is stressed upon as the basic topographic and functional method.