Can ultrasound replace ambulatory urodynamics when investigating women with irritative urinary symptoms?
OBJECTIVE: To determine whether transvaginal ultrasound measurement of bladder wall thickness could replace ambulatory urodynamics when investigating women with lower urinary tract dysfunction not explained by conventional laboratory urodynamic studies. DESIGN: A blinded prospective study. SETTING: Tertiary referral unit in a London teaching hospital. POPULATION: One hundred and twenty-eight women referred for ambulatory urodynamics with equivocal laboratory urodynamic findings or whose symptoms were not explained by the laboratory urodynamic findings. METHODS: Transvaginal ultrasound assessment of bladder wall thickness was performed in three planes with an empty bladder prior to ambulatory urodynamics. Mean bladder wall thickness was calculated and the results analysed with respect to the ambulatory urodynamic diagnosis. MAIN OUTCOME METHODS: Mean bladder wall thickness in women with a normal ambulatory study or a diagnosis of detrusor instability, genuine stress incontinence (GSI) o
