<prompt> In which case cystometric study is indicated -Neurogenic bladderStress incontinenceFistulaUrge incontinence  <response>: Cystometric studies are urodynamic studies in which the pressure changes in the bladder is simultaneously measured with bladder filling and during micturition.It helps in accurate assessment of detrusor and sphincter activity especially if a neurogenic abnormality is suspected.Though it is also used in stress incontinence but the aim here is to rule out any neurogenic cause. 