Intravenous pyelogram

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Intravenous pyelogram

Kidney anatomy

Kidney - blood and urine flow

Excretory urography; IVP

There is a chance of an allergic reaction to the dye, even if you have received contrast dye in the past without any problem. If you have a known allergy to iodine-based contrast, an alternate test should be performed. Alternatives include retrograde pyelography, MRI, or ultrasound.

There is low radiation exposure. X-rays are monitored and regulated to provide the minimum amount of radiation exposure needed to produce the image. Most experts feel that the risk is low compared with the benefits.

Pregnant women and children are more sensitive to the risks of radiation.

Computed tomography (CT) scans have replaced IVP as the main tool for checking the urinary system. CT takes less time to perform and provides additional views of the abdomen, which can help rule out other possible reasons for the patient's symptoms. Magnetic resonance imaging (MRI) is also used to look at the kidneys, ureters, and bladder.

Review Date: 10/11/2010
Reviewed By: Louis S. Liou, MD, PhD, Chief of Urology, Cambridge Health Alliance, Visiting Assistant Professor of Surgery, Harvard Medical School. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

A.D.A.M., Inc. is accredited by URAC, also known as the American Accreditation HealthCare Commission (www.urac.org).

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