Magnetic resonance imaging in assessment of stress urinary incontinence in women: Parameters differentiating urethral hypermobility and intrinsic sphincter deficiency

AIM:To define the magnetic resonance imaging (MRI) parameters differentiating urethral hypermobility (UH) and intrinsic sphincter deficiency (ISD) in women with stress urinary incontinence (SUI). METHODS:The static and dynamic MR images of 21 patients with SUI were correlated to urodynamic (UD) findings and compared to those of 10 continent controls.For the assessment of the urethra and integrity of the urethral support structures, we applied the highresolution endocavitary MRI, such as intraurethral MRI, endovaginal or endorectal MRI.For the functional imaging of the urethral support, we performed dynamic MRI with the pelvic phased array coil.We assessed the following MRI parameters in both the patient and the 394 November 28, 2015|Volume 7|Issue 11| WJR|www.wjgnet.com