PMID: 22568162May 10, 2012Paper

Diagnostic study of the usefulness of virtual endoscopic images and 3-D modeling for lower urinary tract obstruction

Nihon Hinyōkika Gakkai zasshi. The japanese journal of urology
Hiroaki AokiMakoto Fujime

Abstract

I observed bladder and urethral morphology and lumen by making a virtual endoscopy (VE) of the bladder and a urethra for patients with lower urinary tract symptoms. I have herein reported the procedures to use this model to evaluate the condition of patients more precisely. Of those referred for investigation of lower urinary tract symptoms, subjects were 22 boys (5-13 years old, mean 9) in whom voiding cystourethrography (VCUG) was suspected for urethral obstruction between March, 2009 and October, 2010. Eleven of these 22 cases were extracted at random and underwent voiding computed tomography (VCT). Except one dropped out, the 21 cases were assigned to a VCT/VCUG combination group or a VCUG-single group. We confirmed the two groups, the rate of agreement of imaging views and cystourethroscopy (CS) views, and the effectiveness of endoscopic operation. I made the following imaging diagnoses in the VCT/VCUG combination group: congenital obstructive posterior urethral membrane (COPUM), n = 7; Cobb's collar, n = 1; and COPUM and Cobb's collar combined, n = 3. In contrast, in the VCUG-single group, I diagnosed COPUM, n = 5; bulbar region urethral stricture, n = 2; posterior urethral expansion, n = 2; and bladder form abnormality, ...Continue Reading

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