Nondiagnostic 99mTc-MAG3 Diuresis Renography Studies Caused by Propofol Sedation

99m Tc-MAG3 diuresis renography is a noninvasive functional imaging technique used to assess clearance of radiotracer in a dilated urinary tract under high diuresis. It is commonly performed in patients to diagnose functionally significant urinary tract obstruction. In some pediatric patients, sedation is required to enable imaging. However, propofol, a commonly used IV sedative agent, is associated with altered renal hemodynamics. We report a case series of 3 pediatric patients at our institution who received propofol sedation to enable 99m Tc-MAG3 diuresis renography using a F+0 protocol, outlining that some "abnormal" studies were in fact assessed to be nondiagnostic.