Category difference
Category II is used when a standard series of fewer images is sufficient (for example, control after pyeloplasty or stenting, confirmation of kidney function before surgery) or when the patient brings contrast as prescribed by a doctor - the base cost is lower than the full protocol with Unihexol included. The diagnostic essence does not change: the release of contrast by both kidneys, the configuration of the pelvis and the course of the ureters, the level and degree of obstruction are assessed. The full protocol with delayed images is chosen for the initial diagnosis of complex hydronephrosis.
Indications
- urolithiasis - overview image to control X-ray positive stones;
- hydronephrosis, anomalies of the kidneys and ureters - excretory urography;
- urethral stricture, urethral trauma - urethrography;
- vesicoureteral reflux, diverticula, neurogenic bladder - cystography;
- control of drainage and patency after operations (antegrade pyelography, fistulography).
Place of x-ray for diseases of the urinary system
Although MSCT has largely replaced classical urography, X-ray techniques remain indispensable where a functional and “dynamic” picture is needed with a lower dose: monitoring the passage of stones using a survey image, assessing the urethra during urination (voice cystourethrography is the only way to see reflux and the posterior urethra), checking drainages and anastomoses with contrast. The studies are performed by a urologist and a radiologist at the clinic in conjunction, so the images are immediately interpreted in the context of treatment.
