Urodynamics & Ultrasound

What is Urodynamics & Ultrasound?

Urodynamic testing or urodynamics is a study that assesses how the bladder and urethra are performing their job of storing and releasing urine. Urodynamic tests can help explain symptoms such as:


The tests are most often arranged for children with voiding problems and recurrent infection, men with enlarged prostate glands, and for women with incontinence that has either failed conservative treatment or requires surgery.

Urodynamic tests are usually performed in Urology, Gynecology, OB/GYN, Internal medicine, and Primary care offices.


  • sudden, strong urges to urinate but nothing comes out
  • problems starting a urine stream
  • painful urination
  • problems emptying the bladder completely
  • recurrent urinary tract infections
Ultrasound is sound waves with frequencies higher than the upper audible limit of human hearing. Ultrasound is not different from “normal” (audible) sound in its physical properties, except that humans cannot hear it. This limit varies from person to person and is approximately 20 kilohertz (20,000 hertz) in healthy young adults. Ultrasound devices operate with frequencies from 20 kHz up to several gigahertz.


Ultrasound imaging or sonography is often used in medicine. In the nondestructive testing of products and structures, ultrasound is used to detect invisible flaws. Ultrasound is also increasingly being used in trauma and first aid cases.


  • visualize muscles, tendons, and many internal organs
  • capture their size, structure, and any pathological lesions
  • ultrasounds are useful in the detection of pelvic abnormalities and can involve techniques known as abdominal ultrasound