Review of the current literature indicates that the application of various ultrasound techniques plays the most important role in research of imaging of the lower urinary tract. Whereas sonographic urethrocystography by perineal, introital, or vaginal ultrasound has replaced radiography in routine clinical use, more detailed information about the urethra and periurethral tissues has been obtained by three-dimensional sonography and intraluminal high frequency ultrasound. Magnetic resonance imaging is emerging as the newest technique in this field, and has the potential to expand our knowledge of interactions of the lower urinary tract and the pelvic floor.