Renal venogram

Venogram - renal; Venography; Venogram - kidney; Renal vein thrombosis - venogram

A renal venogram is a test to look at the veins in the kidney. It uses x-rays and a special dye (called contrast).

X-rays are a form of electromagnetic radiation like light, but of higher energy, so they can move through the body to form an image. Structures that are dense (such as bone) will appear white and air will be black. Other structures will be shades of gray.

Veins are not normally seen in an x-ray. That is why the special dye is needed. The dye highlights the veins so they show up better on x-rays.

Kidney anatomy

The kidneys are responsible for removing wastes from the body, regulating electrolyte balance and blood pressure, and the stimulation of red blood cell production.

Renal veins

A renal venogram is a method used to examine the veins of the kidneys, using a contrast material and x-rays.

How the Test is Performed

How to Prepare for the Test

How the Test will Feel

Why the Test is Performed

Normal Results

What Abnormal Results Mean

Risks