Abstract
A total of 17 patients with suspected stricture disease underwent conventional retrograde urethrography and sonourethrography. When the length of the stricture as assessed by each imaging modality was compared to measurements at open urethroplasty in 7 patients, sonourethrography was consistently more accurate. Distension of the urethra with saline during the ultrasound examination enabled classification of the degree of spongiofibrosis, which was confirmed by full depth biopsy in 5 patients.Sonourethrography cannot adequately image the posterior urethra, even when the transscrotal approach is used. However, because it is a dynamic 3-dimensional study and can be repeated without risk of radiation exposure, sonourethrography is preferable to radiographic retrograde urography to evaluate patients with suspected anterior urethral strictures.
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