This is an advanced diagnostic radiological-endoscopic evaluation method that allows imaging of the kidney, ureter, and collecting system using a contrast agent in order to evaluate the anatomical structure of the urinary tract in detail.
This method reveals both the structural and functional state of the urinary tract, providing important information especially in complex cases.
Main Purpose
The purpose of urography and similar contrast-enhanced imaging methods is:
- To evaluate the urine production and elimination function of the kidneys
- To show the patency and anatomy of the ureters
- To reveal obstruction, stricture, or masses
- To assist in surgical planning
When Is It Used?
1. Suspicion of obstruction
- Kidney outlet strictures
- Ureteral obstructions
- Hydronephrosis (kidney enlargement)
2. Stone diseases
- Evaluation of hidden stones
- Examination of urine flow after a stone
3. Suspicion of a tumor
- Kidney or ureter masses
- Indirect bladder involvement
4. Anatomical evaluation
- Congenital anomalies
- Structural disorders of the ureter
- Pre-surgical planning
How Is It Performed?
The procedure may vary according to the method used:
1. Intravenous Urography (IVU)
- The contrast agent is given intravenously
- The contrast is filtered through the kidneys and fills the urinary tract
- Serial X-ray images are taken
2. Retrograde Pyelography
- The ureter is entered from the bladder with cystoscopy
- The contrast agent is given directly into the ureter
- The upper urinary tract is clearly imaged
Information Obtained
Thanks to this method, the following are clearly evaluated:
- The working capacity of the kidneys
- Ureteral patency
- Locations of stricture and obstruction
- The presence of a stone or mass
- Urine flow dynamics
Advantages
1. Detailed anatomical imaging
- The upper urinary tract is examined in detail
2. It provides information about function
- The urine production process of the kidneys can be monitored
3. It assists in surgical planning
- It provides a road map before surgery
4. Its diagnostic accuracy is high
- It is valuable especially in complex cases
Possible Risks
It is usually a safe procedure, but the following may occur:
- An allergic reaction due to the contrast agent
- A temporary feeling of nausea
- Rare kidney function involvement
- Mild radiation exposure
After the Procedure
- Plenty of fluid intake is recommended
- The elimination of the contrast agent is accelerated
- A return to daily life is usually immediate
Frequently Asked Questions
Why is it preferred?
It provides more detailed anatomical information in situations where methods such as standard ultrasound or tomography are insufficient.
Is the procedure painful?
No. It is usually painless; there may be only mild discomfort during the intravenous line or catheter procedure.
How long does it take?
It is completed within an average of 30 to 60 minutes.
Is it performed on every patient?
No. It is applied after evaluating kidney function and allergy status.
Is the contrast agent harmful?
It is safe in suitable patients, but it should be used with caution in those with kidney failure.
Clinical Summary
Contrast-enhanced urological imaging methods are advanced diagnostic techniques that play a critical role in the anatomical and functional evaluation of the kidney and upper urinary tract. They provide high diagnostic value especially in cases of suspected obstruction, stone, and tumor.
