- To evaluate renal parenchyma and pelvicalyceal system.
- Suspected renal masses.
- Renal cell carcinoma which requires staging/re-staging.
- Impaired renal function tests.
- History of reactions to contrast agents.
- Treatment of thyroid disease with radioactive iodine.
Recent serum creatinine level.
Recent GFR level.
- Routine medication should not be stopped.
- Fasting for 4-6 hours.
- Proper hydration.
- A nurse will insert an intravenous catheter (IV line) into a vein in your hand or arm that will be used to inject the contrast material.
- You will be positioned supine on the moveable exam table.
- Standard non-contrast study of the urinary tract.
- Injection of 70-80 ml of non-ionized contrast material.
- Split-dose post contrast study to obtain:
- Cortico-medullary phase 30-40 sec
- Nephrographic phase -110 sec
- Excretory (delayed) phase 5-15 min
- When the exam is complete, you may be asked to wait while the radiologist checks the images in case more are needed.
- The exam is done on one of the latest Multislice CT machines from GE, SIEMENS & PHILIPS in Alfa scan branches.
- We recommend you continue drinking plenty of fluid after the examination, as it helps rapid washout of contrast material out of your body except if you are on fluid balance for renal or cardiac condition, then please review your physician in that matter.
Contrast Materials reactions:
- Nausea and vomiting.
- Mild skin rash or hives.