The Significance of Beaking Sign on Cystography in Stress Urinary Incontinence

voluntary loss of urine that occurs due to increased intra-abdominal pressure and without detrusor contraction. Many investigators have attempted to classify SUI, and the classification of Blaivas et al (1), based on the descent of the bladder neck revealed by cystography, has been widely accepted because it provides useful information for determining the treatment modality. According to this classification system, retropubic urethropexy is indicated for patients with type-0 to type-IIb SUI, and suburethral sling for those with type-III SUI (1). Although the Blaivas classification adequately reflects the degree of integrity of the intrinsic sphincter by grading the descent of the bladder neck between resting and stress states, morphological alteration in the resting state, involving subtle opening of the bladder neck withJ Korean Radiol Soc 2001;45:405-409