Complete urethral map
The retrograde phase clearly shows the anterior urethra up to the external sphincter, but the posterior urethra is closed; the miction phase opens the prostatic and membranous sections from the inside. The combination of both phases in the images allows you to measure the true extent of the stricture, identify obliteration after pelvic trauma (distraction defect), evaluate the bladder neck and accompanying reflux - it is these data that determine the type of urethroplasty (anastomotic or replacement with a buccal flap). The examination is performed by a urologist and a radiologist together with sterile urine.
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.
