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Under fluoroscopy (real time x-rays) the radiologist watches the contrast enter the bladder and looks at the anatomy of the patient. If the contrast moves into the ureters and back into the kidneys , the radiologist makes the diagnosis of vesicoureteral reflux , and gives the degree of severity a score.
An intravenous pyelogram is used to look for problems relating to the urinary tract. [5] These may include blockages or narrowing, such as due to kidney stones, cancer (such as renal cell carcinoma or transitional cell carcinoma), enlarged prostate glands, and anatomical variations, [5] such as a medullary sponge kidney. [6]
Ultrasound involves a probe that is placed near a structure and uses the transmission of ultrasound waves through a structure to produce images, after computer processing. [1] Ultrasound of the urinary tract is performed by a probe placed on the abdominal wall, called a transducer. [1] This occurs while a person is lying down. [1]
Structures that are near the ureters. 1. Human urinary system: 2. Kidney, 3. Renal pelvis, 4.Ureter, 5.Urinary bladder, 6. Urethra. (Left side with frontal section ...
Under normal conditions, the ureter is not seen with US. However, in, e.g., urinary obstruction and vesicoureteric reflux with dilation of the ureter, the proximal part in continuation with the renal pelvis, as well as the distal part near the ostium can be evaluated (Figure 14). [1]
Retrograde pyelogram (RPG): X-ray study of the kidney, focusing on the urine-collecting region of the kidney and ureters. Antegrade nephrostogram. CT scan: An imaging technique that uses a computer to collect multiple X-ray images into a two-dimensional cross-sectional image. MRI with intravenous gadolinium. A special technique used to image ...
Ureteroscopy is an examination of the upper urinary tract, usually performed with a ureteroscope that is passed through the urethra and the bladder, and then directly into the ureter. [1] The procedure is useful in the diagnosis and treatment of disorders such as kidney stones and urothelial carcinoma of the upper urinary tract. [ 1 ]
The Boari flap technique reshapes part of the bladder wall into a tube to replace a damaged ureter segment, while appendiceal ureter interposition uses the appendix as a substitute for the ureter. For more extensive reconstruction, the ileal ureter approach repurposes a segment of the small intestine (ileum) to create a new channel for urine ...