[Radionuclide studies with a dynamic kidney phantom].

Altogether 120 studies with a dynamic kidney phantom (DKP) were conducted permitting one to imitate the normal functioning of the kidneys or different pathological states of the organ. The studies were conducted with the help of a gamma-chamber of MV-9100 type using a computer system SEGAMS (Hungary) and a chronoscope RIKh-5M-01. On completion of the experiment the activity-time curves were plotted characterizing the time course of the passage of a radioactive tracer through phantom cylinders that imitate the kidneys.

[Simplified method of analyzing the results of radionuclide studies of gastric emptying].

The authors present a simplified technique for the processing of the results of a study performed in a department that is not fitted out with a computer. Primary data are collected using a gamma-chamber with an analyzer or a radiocirculograph. Three examples of the graphic approximation of primary dynamic curves are given.

[Determination of the amount of functioning renal parenchyma based on multipositional scintigraphy data].

The paper is concerned with mathematical calculations of two methods to determine the amount of the functioning renal parenchyma using the polyposition statistic scintigraphy data. These methods are used to determine the depth of kidney location from the body surface in the lumbar region. An analysis of polyposition scintigraphy of 122 patients without tumor lesion has shown that in 41.