2018 Volume 31 Issue 2 Pages 244-252
Analysis of both urinary flow and bladder outlet morphology is necessary in order to diagnose occlusion within the lower urinary tract and determine the applicability of surgical removal in patients with benign prostate hypertrophy (BPH).
Four-dimensional virtual reality images (Urodynamic 4D-CT) of patient voiding were created using Area Detector CT and image analysis software. This method clearly illuminated urinary conditions such as bladder outlet obstructions (BOO), bladder contraction, and urethral dilation during the actual act of urination.
Factors indicative of operational applicability were found to be a QOL score＞4.5 points, prostatic volume＞33mL, and residual urine＞94.5mL (multivariate analysis n=141).
Combined with conventional diagnostic methods, Urodynamic 4D-CT scanning proved useful in determining surgical applicability for difficult patients. Urodynamic 4D-CT also proved helpful in visualizing dynamic mechanisms of BOO as well as the shape of the bladder and urethra in less problematic patients.
