Radiopertechnetate renography with the gamma ray scintillation camera.

Radiopertechnetate renography merits consideration as another intravenous screening procedure for renovascular hypertension. Thus far in our experience it has yielded fewer falsely negative results than the radiohippurate renogram, and it takes less than one minute to complete. Applications of this method to the assessment of renal perfusion in other renal afflictions are described. The examination requires a stationary imaging device interfaced with a storage device and a data processor. It has the advantage of providing a comparison of renal transit of the test agent with its transit through the systemic circulation, e.g. the aorta.