Kidney Diagnostics (Renal scintigraphy)
The renal scintigraphy is a special examination of the two separate sides of the renal blood flow or renal function and the renal excretion performance of both. With the renal scintigraphy, pathological changes in the kidney can be detected (e.g., inflammation, tumors, urinary retention, and high blood pressure control after renal transplantation).
Other names: renal scintigraphy, renal clearance
Used contrast agents: Tc-99m Mag3 (Mercaptylacetyltriglycine)
What is a renal scintigraphy?
The renal scintigraphy is a nuclear medical examination procedure for the assessment of each side of the kidneys’ renal function (renal clearance), the urine flow into the bladder. It also allows for the assessment of the kidney location, its shape, and size. The examination measures the renal excretion of the radioactive substance by the kidneys. Disturbances of the renal function can be detected at an early stage, even before they are noticed in laboratory tests.
When is this examination needed (indication)?
With this examination consequences of disease on renal blood flow, renal function and excretion can be estimated at an early stage, such as:
- Recognition of general renal dysfunction after kidney disorders (e.g., inflammation, tumors)
- For separate assessment of renal perfusion and function such as in living kidney donors or from kidney surgery
- Diagnosis of urinary obstruction
- Assessment of the relevance of stenosis of the renal arteries (possible cause of high blood pressure)
- In renal transplant for clinical monitoring of renal function
- In infants with abnormalities of the urinary tract to study the urinary flow