Renal Study: Glomerular Filtration

Overview

The Renal Glomerular Filtration Study images Tc-99m-DTPA as it passes through the vascular system, renal glomeruli, renal tubules and collecting system. This series of images allows the sequential evaluation of renal perfusion, renal clearance by glomerular filtration, renal parenchymal transit time and passage of urine through the renal collecting system. In addition, the study provides high contrast images for evaluation of renal anatomy.

Indications

  • Evaluation of internal perfusion and function.
  • Evaluation of renal trauma.
  • Evaluation of renal transplants.

Study Description

The patient is positioned on the imaging table with the camera detector adjusted to image from the posterior projection. The radiopharmaceutical will be administered and a dynamic study (a rapid series of short duration images) will immediately be acquired to assess the blood flow to the kidney. Following this a series of dynamic (continuous) images will be taken immediately for 30 minutes.

Examination Time

  • 45 Minutes

Patient Preparation

  • Ensure the patient is not pregnant or breastfeeding.
  • Well hydrated prior to exam
  • The patient should void before beginning the study