Microaction cystography is a method of x-ray examination of the urinary tract, which allows one to identify inflammatory processes in the kidneys and urinary tract, distinguish hyperemia (redness) from acute infection, and even establish swelling of the soft tissues of the bladder in renal colic.
The use of the method is possible only after examination by a doctor and direct preparation of the patient for diagnosis. At its core, X-ray voiding urethrography is a preparatory step for ureterorenoscopy - endoscopic examination of the upper urinary tract. To conduct the study, the patient must urinate and visit the urologist again. Most often, the examination is carried out if inflammation of the ureter is suspected. To prepare for microcable cystography, a specialist can additionally conduct an ultrasound examination of the kidneys and bladder.
Before the examination, the patient must empty his bowels and bladder. Immediately before the examination, the doctor will need to collect urine to monitor the quality of the study. Urine should be clear, without any blood or pus. Taking these conditions into account, the patient can drink 1–1.5 liters of water or eat at least 200 g of bread. If it is necessary to use cleansing enemas, you should come to the examination with a clean and washed stomach.
The first 3–4 hours after taking a contrast agent, studies are not performed due to the risk of increased or decreased sensitivity of the kidneys. After this condition, indicators of renal function and protein in the urine are examined. After 48 hours, a biopsy is also performed in the hospital, only in this case a control test is done 12–24 hours later.