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Urologe A. 1991 Mar;30(2):99-105.

[Improvement in nuclear medicine diagnosis of kidney function using 99m technetium mercaptoacetyltriglycine (MAG3)].

[Article in German]

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  • 1Abteilung Urologie, Bundeswehrzentralkrankenhaus Koblenz.


Renal scintigraphy and clearance measurement are indispensable in nephro-urologic disorders. A continuous series of 103 sequential scintigraphies and clearance measurements were performed with the new technetium-labelled agent MAG3 (Gamma-kamera, Phillips Tomo Diagnost) and 131I-orthohippuric acid (OIH) using the Oberhausen method (Nucleopan, Siemens). The time-activity curves obtained with the two radionuclides agreed exactly. Reaching a tubular excretion rate of nearly 90%, the clearance of MAG3 differed by no more than 6% from the OIH clearance in 95% of the cases. The factor between clearances of the two radionuclides was determined by means of a commercially available software according to the Oberhausen method and amounted to 0.59 +/- 0.09. The favorable physical properties and high activity of MAG3 permit exact examination of tubular function and better assessment of renal morphology than hippuran-labelled radionuclides. The low radiation dose combined with a better spatial resolution, especially, the constant availability in a nuclear medicine department should give the preference to MAG3.

[PubMed - indexed for MEDLINE]
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