Ján Lepej, Lucia Kaliská, Dana Spišiaková
A 99mTc-DMSA renal scintigraphy (DMSA-RS) is the imaging method of choice in the diagnostics of morphological and functional lesions of renal parenchyma. In this study the results of 883 DMSA-RS during period of 4 years (1999 - 2002) were analyzed and partially (in 16 %) compared with results of ultrasonography (USG) and a dynamic renal scintigraphy (MAG3-DRS) with focusing on main renal anomalies. Physiologic results were found in 728 (50.4 %) of all 1717 kidneys examined (49 kidneys were not visualized). From 480 anomalies, totally on 19.4 % (333) of kidneys, the anomaly in number and size occurred most frequently in 9.4 % (162) from all kidneys examined, with dominancy of renal aplasia and hypoplasia in the right and compensational hypertrophy in the left side. Anomaly of positioning occurred in 6.8 % and more frequently affected the right kidney. After using additional projections in standing position the ren migrans were recorded more frequently from 0.8 % (1999 - 2001) on 13.1 % from all examinations in 2002. This relatively frequent anomaly of renal position is diagnosed rarely by other imaging methods. From anomalies of shape (5.1 %) by DMSA-RS is precisely diagnosed the horseshoe kidney (prevalency 2.9 %) is diagnosed more precisely than the double kidney (12.1 %). DMSA-RS and MAG3-DRS are additional to morphological imaging by USG with their information concerning the renal and urinary tract function. We suppose that unification in topography and language of medical reports are important to be comprehensible for both clinicians and nuclear medicine specialists.