What exactly does KUB mean?

KUB is an abdominal X-ray. Renal (kidney)-ureter (ureter)-bladder (bladder) urography abdominal plain film.

The main purpose is to preliminarily diagnose urinary calculi.

Urinary calculi are common diseases in urinary system. Stones can be found in any part of kidney, bladder, ureter and urethra. However, renal and ureteral stones are common. Clinical manifestations vary with the location of stones. The typical manifestations of renal and ureteral calculi are renal colic and hematuria. Before the colic attack caused by stones, the patient did not feel anything. Due to some inducement, such as strenuous exercise, labor, long-distance riding, etc. Severe colic suddenly appeared on one side of the waist and radiated to the lower abdomen and perineum, accompanied by abdominal distension, nausea, vomiting and hematuria of different degrees. The main manifestations of bladder stones are dysuria and pain in urination.

The essence of X-ray: electromagnetic wave with certain wavelength and frequency, with wave-particle duality. X-ray imaging makes use of the energy conversion when it interacts with matter, and highlights the properties of particles.

X-rays have extremely short wavelength and extremely high energy. Its wavelength is between ultraviolet and gamma rays, and the range is 0.0006-50 nm. The commonly used wavelength for X-ray diagnosis is 0.008 to 0.03 1 nm.