“…Additionally, ultrasound may be helpful in detection of certain conditions of underlying problems, such as urinary incontinence, POP before and after the treatment and PFD of patients with cervical cancer after radical hysterectomy (RH), because the aforementioned surgeries or managements are associated with very high prevalence of urine retention and frequent need for intermittent catheterization or long-term deposit catherization. 13,15 Although the TAS is recommended as a standard work-up to measure PVR which is mediated by calculating three diameters (length, height, and width), there are more than 20 different formulae to finish this measurement of PVR. 13 Unfortunately, ultrasound estimations of PVR is relatively rough and imprecise.…”