The paper describes a static scintigram computer processed by the Siemens-Euromeni method which gives rather accurate parameters concerning the overall functional thyroid tissue mass, as well as functions of a certain thyroid gland node. It facilitates the calculation of the dimensions of the right-angled field which borders the thyroid gland (cm), radioactivity uptake (% of a given dose) in the whole gland, left and right lobe, the ratio between the left and right lobe uptake, the surface (cm2) of the whole gland and of the left and right lobe, the ratio between the left and right lobe surfaces, the number of impulses (imp) registered in the whole gland and in the left and right lobe, the volume (cm3) of the whole gland and of the left and right lobe, the ratio between the left and right lobe volume, as well as the surface and radioactivity uptake (% of a given dose and % of the total uptake) in the marked nodes. An additional calculation could offer an uptake ratio per surface unit between the node and paranodal tissue which, by the use of suppression tests offers a very accurate assessment of the function and compensation of each node. The method represents a significant contribution to an accurate assessment of the functional mass as well as to the assessment of nodal changes of the thyroid gland.