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Radionuclide imaging of the renal tract: principles and applications

Department of Nuclear Medicine, Western Infirmary Glasgow, Dumbarton Road, Glasgow G11 6NT, UK

• Radionuclide imaging remains crucial in the evaluation of the renal tract by providing functional information that cannot be obtained by CT, MRI or ultrasound.
  
• Static renography with ^99mTc-DMSA is extremely useful in providing an accurate quantification of viable renal parenchyma.
  
• Dynamic renography performed under diuretic stress, preferably with ^99mTc-MAG3, is crucial to assessment of pelvi-ureteric or ureteric obstruction, which is the main indication for this test.
  

Radionuclide investigations remain crucial in the investigation of the renal tract, providing functional information that cannot be obtained by CT, MRI or ultrasound. The principles and applications of the most commonly used static and dynamic renal scintigraphy techniques are discussed.