Imaging of the male urethra for stricture disease

640-slice DVCT multi-dimensionally and dynamically presents changes in bladder volume and urine flow rate

“…It is a simple, easy and low-cost approach, as it requires only conventional X-ray imaging and the retrograde injection of diluted contrast agent to examine the lower urinary tract (13,14). However, since X-ray photographs obtained in the anteroposterior and double oblique views are overlapped images, and the procedure is invasive, the feasibility of this type of examination is limited (4,15). Sonourethrography has been used to examine the lower urinary tract, but is not widely applied because of its small field of vision and a lack of recognition among urologists (4).…”

“…Conventional radiography, such as retrograde and excretory urethrography, has been used for a century as the standard imaging technique in conventional research on the morphology and function of the lower urinary tract (2,3). Under certain circumstances, other imaging techniques, including ultrasound and magnetic resonance imaging (MRI) may be conducive to the diagnosis of the lower urinary tract diseases (4,5). However, methods including excretory urography, retrograde urography and contrast urography have a number of defects, including the use of an invasive procedure or a lack of quantitative indicators (6,7).…”

To Study the Role of Magnetic Resonance Imaging in Posterior Urethral Distraction Defects

“…In contrast, the mechanism of posterior urethral strictures is complete or partial disruption of the lumen continuity secondary to pelvic trauma resulting in displacement of the urethral axis and urethral obliteration from intervening fibrosis. Urethral strictures rarely involve both anterior and posterior segments simultaneously (Gallentine and Morey, 2002). Being popularized in 1910 by Cunningham (1910), RUG remained as the gold standard imaging study for diagnosing urethral strictures for nearly a century.…”

An analytical study of stricture urethra by retrograde urethrography

“…(4) It is caused by collagen and fibroblast proliferation. As urethral stricture causes progressive narrowing of the urethral lumen, symptoms and signs of urinary obstruction arise gradually and with increased severity.…”