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The authors described the principle and algorithms of the separation of a summary radionephrogram into constituents, reflecting the contribution of a radiopharmaceutical, uptaken by neutrons, and RP in the surrounding tissues. The authors proposed a correct method for estimation (using the first constituent) of the efficacy indicator of RP uptake by the kidneys (Q-parameter) and the indicator of the mean time of transit (t) in the kidneys of RP uptaken by their parenchyma. The results of testing of the proposed methods of Q and t calculation were presented.
View Article and Find Full Text PDFA group of 516 patients was studied using the routine renographic method. It can be admitted that 3 min after registration of maximum radioactivity in the kidney the curve of the radionephrogram in the interval of 7 min and that of radioactivity in the cardiac area within the same time interval are similar. Proceeding from this supposition coefficients of intensity of hippuran comparative outflow from the kidneys (K), from the kidney and blood (D) have been proposed.
View Article and Find Full Text PDF[Surgical management of ureteral evacuation disorders using a surgical gama camera].
Zentralbl Gynakol
April 1976
By means of the radionephrogram it is possible to discover a disturbance of the excretion of the upper urinary tract at an early stage. Since there can be no pathological function of the urinary excretion without negative effect on the renal function, measures must be taken in order to prevent this from happening. By conventional surgical methods the eventual success of an operation can be judged only at a postoperative stage, sometimes an additional operation will prove necessary.
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